diff --git a/csst_dfs_api_cluster/common/catalog.py b/csst_dfs_api_cluster/common/catalog.py
index 47b8e97022fb6b0a81d6383a3d2978951b552f86..139fa31b6578d6ee37dbc29e3992c5fdfd5516d4 100644
--- a/csst_dfs_api_cluster/common/catalog.py
+++ b/csst_dfs_api_cluster/common/catalog.py
@@ -16,31 +16,12 @@ class CatalogApi(object):
         self.stub = None
 
     @grpc_channel
-    def gaia3_query(self, ra: float, dec: float, radius: float, columns: tuple, min_mag: float,  max_mag: float,  obstime: int, limit: int):
-        ''' retrieval GAIA DR 3
-            args:
-                ra:  in deg
-                dec:  in deg
-                radius:  in deg
-                tuple of str, like ('ra','dec','phot_g_mean_mag')
-                min_mag: minimal magnitude
-                max_mag: maximal magnitude
-                obstime: seconds  
-                limit: limits returns the number of records
-            return: csst_dfs_common.models.Result
-        ''' 
+    def catalog_query(self, **kwargs):
         try:
             datas = io.BytesIO()
             totalCount = 0
-            resps = self.stub.Gaia3Search(ephem_pb2.EphemSearchRequest(
-                ra = ra,
-                dec = dec,
-                radius = radius,
-                columns = ",".join(columns),
-                minMag = min_mag,
-                maxMag = max_mag,
-                obstime = obstime,
-                limit = limit
+            resps = self.stub.Search(ephem_pb2.SearchRequest(
+                conditions = { k:str(v) for k,v in kwargs.items() }
             ),metadata = get_auth_headers())
             for resp in resps:
                 if resp.success:
@@ -51,6 +32,6 @@ class CatalogApi(object):
             datas.flush()
             records = pickle.loads(datas.getvalue())
 
-            return Result.ok_data(data = records).append("totalCount", totalCount).append("columns", columns)
+            return Result.ok_data(data = records).append("totalCount", totalCount).append("columns", kwargs['columns'])
         except grpc.RpcError as e:
             return Result.error(message="%s:%s" % (e.code().value, e.details()))
diff --git a/csst_dfs_api_cluster/common/service.py b/csst_dfs_api_cluster/common/service.py
index 308ab05b0b314f25a8b9633e9108b933a698122b..028b4766e93183eeb09b01a7cdcee8c9b1d19ebd 100644
--- a/csst_dfs_api_cluster/common/service.py
+++ b/csst_dfs_api_cluster/common/service.py
@@ -1,27 +1,12 @@
 import os
 import grpc
+from csst_dfs_proto.db import db_pb2, db_pb2_grpc
 from csst_dfs_commons.models.errors import CSSTFatalException
 
-class ServiceProxy:
-    def __init__(self):
-        self.gateway = os.getenv("CSST_DFS_GATEWAY",'172.31.248.218:30880')
-
-    def channel(self):
-        options = (('grpc.max_send_message_length', 1024 * 1024 * 1024),
-                    ('grpc.max_receive_message_length', 1024 * 1024 * 1024))     
-        # channel = grpc.insecure_channel(self.gateway, options = options, compression = grpc.Compression.Gzip)
-        channel = grpc.insecure_channel(self.gateway, options = options)
-        try:
-            grpc.channel_ready_future(channel).result(timeout=10)
-        except grpc.FutureTimeoutError:
-            raise CSSTFatalException('Error connecting to server {}'.format(self.gateway))
-        else:
-            return channel
-        
 def grpc_channel(func):
     def wrapper(*args, **kwargs):
         with get_grpc_channel() as c:
-            args[0].stub = args[0].stub_class(c)
+            args[0].stub = db_pb2_grpc.DBSrvStub(c)
             return func(*args, **kwargs)
     return wrapper
 
@@ -36,4 +21,4 @@ def get_grpc_channel():
     except grpc.FutureTimeoutError:
         raise CSSTFatalException('Error connecting to server {}'.format(gateway))
     else:
-        return channel  
\ No newline at end of file
+        return channel
diff --git a/csst_dfs_api_cluster/common/utils.py b/csst_dfs_api_cluster/common/utils.py
index 04ca8a5bcd4553c67d570238fd0726245ea43926..691cf6a843db9f8258d2dbf63dbee4cfb87bc557 100644
--- a/csst_dfs_api_cluster/common/utils.py
+++ b/csst_dfs_api_cluster/common/utils.py
@@ -1,11 +1,14 @@
+import io
 import os
 from datetime import datetime
 import time
 import grpc
+import pickle
 
-from csst_dfs_commons.models import Result
-from csst_dfs_proto.common.misc import misc_pb2, misc_pb2_grpc
+from csst_dfs_commons.models import Result, Record
+from csst_dfs_proto.db import db_pb2, db_pb2_grpc
 from .service import get_grpc_channel
+from .constants import UPLOAD_CHUNK_SIZE
 
 def format_datetime(dt):
     return dt.strftime('%Y-%m-%d %H:%M:%S')
@@ -56,14 +59,139 @@ def singleton(cls):
 def get_auth_headers():
     return (("csst_dfs_app",os.getenv("CSST_DFS_APP_ID")),("csst_dfs_token",os.getenv("CSST_DFS_APP_TOKEN")),)
 
-def get_nextId_by_prefix(prefix):
+def get_next_id(prefix):
     with get_grpc_channel() as c:
-        stub = misc_pb2_grpc.MiscSrvStub(c)
+        stub = db_pb2_grpc.DBSrvStub(c)
         try:
-            resp,_ = stub.GetSeqId.with_call(
-                misc_pb2.GetSeqIdReq(prefix=prefix),
+            resp,_ = stub.Get.with_call(
+                db_pb2.GetReq(
+                    conditions = {
+                        "__function":"MiscServicer.GetSeqId",
+                        "prefix": prefix
+                    }
+                ),
                 metadata = get_auth_headers()
             )
-            return Result.ok_data(data=resp.nextId)
+            record = pickle.loads(resp.record)
+            return Result.ok_data(data=record[0])
         except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))    
\ No newline at end of file
+            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+
+def update_kwargs(function, kwargs):
+    conditions = {
+        "__function": function,
+    }
+    conditions.update(kwargs)
+    conditions = { k:str(v) for k,v in conditions.items() }
+    return conditions
+    
+def find_req(function, kwargs): 
+    conditions = update_kwargs(function, kwargs)
+    if "limit" not in conditions:
+        conditions["limit"] = "-1"
+    if "page" not in conditions:
+        conditions["page"] = "-1"
+        
+    req = db_pb2.FindReq(conditions = conditions)
+    with get_grpc_channel() as c:
+        try:
+            datas = io.BytesIO()
+            totalCount = 0
+            resps =  db_pb2_grpc.DBSrvStub(c).Find(req,
+                                    metadata = get_auth_headers())
+            for resp in resps:
+                if resp.success:
+                    datas.write(resp.records)
+                    totalCount = resp.totalCount
+                else:
+                    return Result.error(message = str(resp.error.detail))
+                
+            datas.flush()
+            dv = datas.getvalue()
+            if not dv:
+                return Result.ok_data(data = []).append("totalCount", totalCount)\
+                            .append("columns", [])
+            else:
+                records = pickle.loads(datas.getvalue())
+                records, cols = records[0], records[1]
+                return Result.ok_data(data = records).append("totalCount", totalCount)\
+                            .append("columns", cols)
+
+        except grpc.RpcError as e:
+            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+
+def get_req(function, kwargs): 
+    req = db_pb2.GetReq(conditions = update_kwargs(function, kwargs))
+    with get_grpc_channel() as c:
+        stub = db_pb2_grpc.DBSrvStub(c)
+        try:
+            resp = stub.Get(req,
+                metadata = get_auth_headers()
+            )
+            if resp.record:
+                record = pickle.loads(resp.record)
+                if record:
+                    data = Record.from_tuple(record, resp.columns)
+                    return Result.ok_data(data=data).append("columns", resp.columns)
+                else:
+                    return Result.error(message=f"not found")                
+            else:
+                return Result.error(message=f"not found")
+        except grpc.RpcError as e:
+            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+
+def update_req(function, kwargs): 
+    req = db_pb2.UpdateReq(conditions = update_kwargs(function, kwargs))
+    with get_grpc_channel() as c:
+        stub = db_pb2_grpc.DBSrvStub(c)
+        try:
+            resp = stub.Update(req,
+                metadata = get_auth_headers()
+            )
+            if resp.success:
+                return Result.ok_data()
+            else:
+                return Result.error(message = str(resp.error.detail))
+        except grpc.RpcError as e:
+            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+
+def write_req(function, kwargs): 
+    req = db_pb2.WriteReq(conditions = update_kwargs(function, kwargs))
+    with get_grpc_channel() as c:
+        stub = db_pb2_grpc.DBSrvStub(c)
+        try:
+            resp = stub.Write(req,
+                metadata = get_auth_headers()
+            )
+            if resp.success:
+                if resp.record:
+                    record = pickle.loads(resp.record)
+                    return Result.ok_data(data=record).append("columns", resp.columns)
+            else:
+                return Result.error(message = str(resp.error.detail))
+        except grpc.RpcError as e:
+            return Result.error(message="%s:%s" % (e.code().value, e.details()))  
+
+def write_stream_req(function, byte_stream, kwargs): 
+    conditions = update_kwargs(function, kwargs)
+    def stream():
+        while True:
+            data = byte_stream.read(UPLOAD_CHUNK_SIZE)
+            if not data:
+                break
+            yield db_pb2.WriteStreamReq(conditions = conditions, data = data)
+
+    with get_grpc_channel() as c:
+        stub = db_pb2_grpc.DBSrvStub(c)
+        try:
+            resp = stub.WriteStream(stream(),
+                metadata = get_auth_headers()
+            )
+            if resp.success:
+                if resp.record:
+                    record = pickle.loads(resp.record)
+                    return Result.ok_data(data=record).append("columns", resp.columns)
+            else:
+                return Result.error(message = str(resp.error.detail))
+        except grpc.RpcError as e:
+            return Result.error(message="%s:%s" % (e.code().value, e.details()))
\ No newline at end of file
diff --git a/csst_dfs_api_cluster/facility/__init__.py b/csst_dfs_api_cluster/facility/__init__.py
index d438b573bbbde02e73dc1caa9f925364cc49b071..d7f4f95749d574901d9702000cd267f92fd38442 100644
--- a/csst_dfs_api_cluster/facility/__init__.py
+++ b/csst_dfs_api_cluster/facility/__init__.py
@@ -1,6 +1,5 @@
 from .brick import BrickApi
 from .detector import DetectorApi
-from .level2producer import Level2ProducerApi
 from .observation import ObservationApi
 from .level1 import Level1DataApi
 from .level0 import Level0DataApi
diff --git a/csst_dfs_api_cluster/facility/brick.py b/csst_dfs_api_cluster/facility/brick.py
index 8a2637c4dc8d1a69a4b22c534f79f5933bbd4e92..1aaecbd7a3db90f997b40217ddb7bad1b5630fa4 100644
--- a/csst_dfs_api_cluster/facility/brick.py
+++ b/csst_dfs_api_cluster/facility/brick.py
@@ -1,147 +1,29 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Brick, BrickObsStatus, BrickLevel1
-
-from csst_dfs_proto.facility.brick import brick_pb2, brick_pb2_grpc
-
 from ..common.service import grpc_channel
 from ..common.utils import *
-from ..common.constants import UPLOAD_CHUNK_SIZE
 
 class BrickApi(object):
     """
     Brick Operation Class
     """    
     def __init__(self):
-        self.stub_class = brick_pb2_grpc.BrickSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' find brick records
-
-        :param kwargs:
-            limit: limits returns the number of records,default 0:no-limit
-
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(brick_pb2.FindBrickReq(
-                limit = get_parameter(kwargs, "limit", 0),
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Brick, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("BrickServicer.Find", kwargs)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        :param kwargs:
-            id : [int]
-
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            brick_id = get_parameter(kwargs, "id", -1)
-            resp, _ =  self.stub.Get.with_call(brick_pb2.GetBrickReq(
-                id = brick_id
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or (resp.record.id == 0 and resp.record.ra == 0.0 and resp.record.dec == 0.0):
-                return Result.error(message=f"{brick_id} not found")  
-
-            return Result.ok_data(data=Brick().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))        
+        return get_req("BrickServicer.Get", kwargs) 
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a brickal record into database
-
-        :param kwargs: Parameter dictionary, key items support:
-            ra = [float],
-            dec = [float],
-            boundingbox = [str]
-        
-        :returns: csst_dfs_common.models.Result
-        '''  
-        rec = brick_pb2.BrickRecord(
-            id = get_parameter(kwargs, "id", -1),
-            ra = get_parameter(kwargs, "ra", 0.0),
-            dec = get_parameter(kwargs, "dec", 0.0),
-            boundingbox = get_parameter(kwargs, "boundingbox", "")
-        )
-        req = brick_pb2.WriteBrickReq(record = rec)
-        try:
-            resp,_ = self.stub.Write.with_call(req,metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Brick().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return write_req("BrickServicer.Write", kwargs) 
 
     @grpc_channel
     def find_obs_status(self, **kwargs):
-        ''' find observation status of bricks
-
-        :param kwargs:
-            brick_id = [int],
-            band = [string],
-            limit = [int]
-
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindObsStatus.with_call(brick_pb2.FindObsStatusReq(
-                brick_id = get_parameter(kwargs, "brick_id", -1),
-                band = get_parameter(kwargs, "band", ""),
-                limit = get_parameter(kwargs, "limit", 0)
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(BrickObsStatus, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("BrickServicer.FindObsStatus", kwargs)
         
     @grpc_channel
-    def find_level1_data(self, **kwargs):
-        ''' find level1 data
-
-        :param kwargs: Parameter dictionary, support:
-            brick_id = [int]
-            level1_id = [int]
-            module = [str],
-            limit = [int]
-
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindLevel1.with_call(brick_pb2.FindLevel1Req(
-                brick_id = get_parameter(kwargs, "brick_id", -1),
-                level1_id = get_parameter(kwargs, "level1_id", 0),
-                module = get_parameter(kwargs, "limit", ""),
-                limit = get_parameter(kwargs, "limit", 0)
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(BrickLevel1, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+    def find_level1_ids(self, **kwargs):
+        return find_req("BrickServicer.FindLevel1Data", kwargs)
diff --git a/csst_dfs_api_cluster/facility/detector.py b/csst_dfs_api_cluster/facility/detector.py
index a45ddd124fa7b206183552c15e38f0d9e865bc5a..e3b4a5ce77583c3d737c877625c0f189595f6d9e 100644
--- a/csst_dfs_api_cluster/facility/detector.py
+++ b/csst_dfs_api_cluster/facility/detector.py
@@ -1,224 +1,38 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Detector, DetectorStatus
-from csst_dfs_proto.facility.detector import detector_pb2, detector_pb2_grpc
-
 from ..common.service import grpc_channel
 from ..common.utils import *
 
 class DetectorApi(object):
     def __init__(self):
-        self.stub_class = detector_pb2_grpc.DetectorSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve detector records from database
-
-        parameter kwargs:
-            module_id: [str]
-            key: [str]
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(detector_pb2.FindDetectorReq(
-                module_id = get_parameter(kwargs, "module_id"),
-                key = get_parameter(kwargs, "key")
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Detector,resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("DetectorServicer.Find", kwargs)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            no : [str] 
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            no = get_parameter(kwargs, "no")
-            resp, _ =  self.stub.Get.with_call(detector_pb2.GetDetectorReq(
-                no = no
-            ),metadata = get_auth_headers())
-
-            if not resp.record.no:
-                return Result.error(message=f"no:{no} not found")  
-
-            return Result.ok_data(data=Detector().from_proto_model(resp.record))
-           
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
+        return get_req("DetectorServicer.Get", kwargs) 
 
     @grpc_channel
     def update(self, **kwargs):
-        ''' update a detector by no
-
-        parameter kwargs:
-            no : [str],
-            detector_name : [str],
-            module_id : [str],
-            filter_id : [str]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            no = get_parameter(kwargs, "no")
-            result_get = self.get(no=no)
-            if not result_get.success:
-                return result_get
-
-            record = detector_pb2.Detector(
-                no = no,
-                detector_name = get_parameter(kwargs, "detector_name", result_get.data.detector_name),
-                module_id = get_parameter(kwargs, "module_id", result_get.data.module_id),
-                filter_id = get_parameter(kwargs, "filter_id", result_get.data.filter_id)
-            )            
-            resp,_ = self.stub.Update.with_call(
-                detector_pb2.UpdateDetectorReq(record=record),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("DetectorServicer.Update", kwargs) 
 
     @grpc_channel
     def delete(self, **kwargs):
-        ''' delete a detector by no
-
-        parameter kwargs:
-            no : [str]
-
-        return csst_dfs_common.models.Result
-        '''
-        no = get_parameter(kwargs, "no")
-
-        try:
-            resp,_ = self.stub.Delete.with_call(
-                detector_pb2.DeleteDetectorReq(no=no),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("DetectorServicer.Delete", kwargs) 
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a detector record into database
-
-        parameter kwargs:
-            no : [str],
-            detector_name : [str],
-            module_id : [str],
-            filter_id : [str]
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = detector_pb2.Detector(
-            no = get_parameter(kwargs, "no"),
-            detector_name = get_parameter(kwargs, "detector_name"),
-            module_id = get_parameter(kwargs, "module_id"),
-            filter_id = get_parameter(kwargs, "filter_id")
-        )
-        req = detector_pb2.WriteDetectorReq(record = rec)
-        try:
-            resp,_ = self.stub.Write.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Detector().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return write_req("DetectorServicer.Write", kwargs)
 
     @grpc_channel
     def find_status(self, **kwargs):
-        ''' retrieve a detector status's from database
-
-        parameter kwargs:
-            detector_no: [str]
-            status_occur_time: (begin,end)
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindStatus.with_call(detector_pb2.FindStatusReq(
-                detector_no = get_parameter(kwargs, "detector_no"),
-                status_begin_time = get_parameter(kwargs, "status_occur_time", [None, None])[0],
-                status_end_time = get_parameter(kwargs, "status_occur_time", [None, None])[1],                
-                limit = get_parameter(kwargs, "limit", 0)
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(DetectorStatus,resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("DetectorServicer.FindStatus", kwargs)
 
     @grpc_channel
     def get_status(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int] 
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            id = get_parameter(kwargs, "id")
-            resp, _ =  self.stub.GetStatus.with_call(detector_pb2.GetStatusReq(
-                id = id
-            ),metadata = get_auth_headers())
-
-            if resp.record == 0:
-                return Result.error(message=f"id:{id} not found")  
-
-            return Result.ok_data(data=DetectorStatus().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
+        return get_req("DetectorServicer.GetStatus", kwargs)
     
     @grpc_channel
     def write_status(self, **kwargs):
-        ''' insert a detector status into database
-
-        parameter kwargs:
-            detector_no : [str],
-            status : [str],
-            status_time : [str]
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = detector_pb2.DetectorStatus(
-            id = 0,
-            detector_no = get_parameter(kwargs, "detector_no"),
-            status = get_parameter(kwargs, "status"),
-            status_time = get_parameter(kwargs, "status_time")
-        )
-        req = detector_pb2.WriteStatusReq(record = rec)
-        try:
-            resp,_ = self.stub.WriteStatus.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=DetectorStatus().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))            
\ No newline at end of file
+        return write_req("DetectorServicer.WriteStatus", kwargs)          
\ No newline at end of file
diff --git a/csst_dfs_api_cluster/facility/level0.py b/csst_dfs_api_cluster/facility/level0.py
index d3678f17f400555bcf1349d1e5f385732029a645..f0c7c54cd093b9f5a0661b48f9314e8aaaa809c4 100644
--- a/csst_dfs_api_cluster/facility/level0.py
+++ b/csst_dfs_api_cluster/facility/level0.py
@@ -1,212 +1,30 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Level0Record
-
-from csst_dfs_proto.facility.level0 import level0_pb2, level0_pb2_grpc
 
 from ..common.service import grpc_channel
 from ..common.utils import *
+from csst_dfs_commons.models import Record
 
 class Level0DataApi(object):
     def __init__(self):
-        self.stub_class = level0_pb2_grpc.Level0SrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve level0 records from database
-
-        parameter kwargs:
-            obs_id: [str],
-            module_id: [str]
-            detector_no: [str],
-            obs_type: [str],
-            filter: [str],
-            obs_time : (start, end),
-            qc0_status : [int],
-            prc_status : [int],
-            file_name: [str],
-            ra_obj: [float],
-            dec_obj: [float],
-            radius: [float],
-            object_name: [str],
-            version: [str],
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level0_pb2.FindLevel0DataReq(
-                obs_id = get_parameter(kwargs, "obs_id"),
-                detector_no = get_parameter(kwargs, "detector_no"),
-                module_id = get_parameter(kwargs, "module_id"),
-                obs_type = get_parameter(kwargs, "obs_type"),
-                exp_time_start = get_parameter(kwargs, "obs_time", [None, None])[0],
-                exp_time_end = get_parameter(kwargs, "obs_time", [None, None])[1],
-                qc0_status = get_parameter(kwargs, "qc0_status", 1024),
-                prc_status = get_parameter(kwargs, "prc_status", 1024),
-                file_name = get_parameter(kwargs, "file_name"),
-                ra_obj  = get_parameter(kwargs, "ra_obj", None),
-                dec_obj = get_parameter(kwargs, "dec_obj", None),
-                radius = get_parameter(kwargs, "radius", 0),
-                object_name = get_parameter(kwargs, "object_name", None),
-                version = get_parameter(kwargs, "version", None),
-                filter = get_parameter(kwargs, "filter", None),
-                limit = get_parameter(kwargs, "limit", 0),
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level0Record, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def find_by_brick_ids(self, **kwargs):
-        ''' retrieve level0 records by brick_ids like [1,2,3,4]
-
-        :param kwargs: Parameter dictionary, key items support:
-            brick_ids: [list]
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindByBrickIds.with_call(level0_pb2.FindByBrickIdsReq(
-                brick_ids = get_parameter(kwargs, "brick_ids", [])
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level0Record, resp.records))
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
+        result = find_req("Level0Servicer.Find", kwargs)
+        data = Record.from_list(result["data"], result["columns"])
+        result["data"] = data
+        return result
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int],
-            level0_id: [str],
-            obs_type: [str]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Get.with_call(level0_pb2.GetLevel0DataReq(
-                id = get_parameter(kwargs, "id"),
-                level0_id = get_parameter(kwargs, "level0_id"),
-                obs_type = get_parameter(kwargs, "obs_type")
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"not found")  
-
-            return Result.ok_data(data = Level0Record().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
+        return get_req("Level0Servicer.Get", kwargs)
 
     @grpc_channel
     def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            level0_id: [str],
-            obs_type: [str],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                level0_pb2.UpdateProcStatusReq(
-                    id = get_parameter(kwargs, "id"),
-                    level0_id = get_parameter(kwargs, "level0_id"),
-                    obs_type = get_parameter(kwargs, "obs_type"),
-                    status=get_parameter(kwargs, "status")
-                ),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level0Servicer.UpdateProcStatus", kwargs)
 
     @grpc_channel
     def update_qc0_status(self, **kwargs):
-        ''' update the status of QC0
-        
-        parameter kwargs:
-            id : [int],
-            level0_id: [str],
-            obs_type: [str],
-            status : [int]
-        '''        
-
-        try:
-            resp,_ = self.stub.UpdateQc0Status.with_call(
-                level0_pb2.UpdateQc0StatusReq( 
-                    id = get_parameter(kwargs, "id"),
-                    level0_id = get_parameter(kwargs, "level0_id"),
-                    obs_type = get_parameter(kwargs, "obs_type"),
-                    status=get_parameter(kwargs, "status")
-                ),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level0Servicer.UpdateQc0Status", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a level0 data record into database
-
-        parameter kwargs:
-            obs_id = [str]
-            detector_no = [str]
-            obs_type = [str]        
-            obs_time = [str]
-            exp_time = [int]
-            detector_status_id = [int]
-            filename = [str]
-            file_path = [str]
-        return: csst_dfs_common.models.Result
-        '''          
-        rec = level0_pb2.Level0Record(
-            obs_id = get_parameter(kwargs, "obs_id"),
-            detector_no = get_parameter(kwargs, "detector_no"),
-            obs_type = get_parameter(kwargs, "obs_type"),
-            obs_time = get_parameter(kwargs, "obs_time"),
-            exp_time = get_parameter(kwargs, "exp_time"),
-            qc0_status = get_parameter(kwargs, "qc0_status", 0),
-            detector_status_id = get_parameter(kwargs, "detector_status_id"),
-            filename = get_parameter(kwargs, "filename"),
-            file_path = get_parameter(kwargs, "file_path")
-        )
-        req = level0_pb2.WriteLevel0DataReq(record = rec)
-        try:
-            resp,_ = self.stub.Write.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data = Level0Record().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-
+        return write_req("Level0Servicer.Write", kwargs)
diff --git a/csst_dfs_api_cluster/facility/level0prc.py b/csst_dfs_api_cluster/facility/level0prc.py
index 3389ac7b550febf5e834c75b2635f7d1f2352ac0..0fd5b7f8355e92c32e50bd7c5bd9fa3e1a92709f 100644
--- a/csst_dfs_api_cluster/facility/level0prc.py
+++ b/csst_dfs_api_cluster/facility/level0prc.py
@@ -1,107 +1,19 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Level0PrcRecord
-
-from csst_dfs_proto.facility.level0prc import level0prc_pb2, level0prc_pb2_grpc
 
 from ..common.service import grpc_channel
 from ..common.utils import *
 
 class Level0PrcApi(object):
     def __init__(self):
-        self.stub_class = level0prc_pb2_grpc.Level0PrcSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve level0 procedure records from database
-
-        parameter kwargs:
-            level0_id: [str]
-            pipeline_id: [str]
-            prc_module: [str]
-            prc_status : [int]
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level0prc_pb2.FindLevel0PrcReq(
-                level0_id = get_parameter(kwargs, "level0_id"),
-                pipeline_id = get_parameter(kwargs, "pipeline_id"),
-                prc_module = get_parameter(kwargs, "prc_module"),
-                prc_status = get_parameter(kwargs, "prc_status"),
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Level0PrcRecord, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("Level0PrcServicer.Find", kwargs)
 
     @grpc_channel
     def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                level0prc_pb2.UpdateProcStatusReq(id=id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level0PrcServicer.UpdateProcStatus", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a level0 procedure record into database
- 
-        parameter kwargs:
-            level0_id : [str]
-            pipeline_id : [str]
-            prc_module : [str]
-            params_file_path : [str]
-            prc_status : [int]
-            prc_time : [str]
-            result_file_path : [str]
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = level0prc_pb2.Level0PrcRecord(
-            id = 0,
-            level0_id = get_parameter(kwargs, "level0_id"),
-            pipeline_id = get_parameter(kwargs, "pipeline_id"),
-            prc_module = get_parameter(kwargs, "prc_module"),
-            params_file_path = get_parameter(kwargs, "params_file_path"),
-            prc_status = get_parameter(kwargs, "prc_status", -1),
-            prc_time = get_parameter(kwargs, "prc_time"),
-            result_file_path = get_parameter(kwargs, "result_file_path")
-        )
-        req = level0prc_pb2.WriteLevel0PrcReq(record = rec)
-        try:
-            resp,_ = self.stub.Write.with_call(req,metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data = Level0PrcRecord().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-   
-
+        return write_req("Level0PrcServicer.Write", kwargs)
diff --git a/csst_dfs_api_cluster/facility/level1.py b/csst_dfs_api_cluster/facility/level1.py
index df1a5d56b007c638bcc05c9c9e894c5ecfe23d89..238f6580ee54a0320ba1c75f188f070c69adb7bb 100644
--- a/csst_dfs_api_cluster/facility/level1.py
+++ b/csst_dfs_api_cluster/facility/level1.py
@@ -1,271 +1,72 @@
-import os
-import grpc
-import datetime
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Level1Record
-from csst_dfs_commons.models.constants import UPLOAD_CHUNK_SIZE
-from csst_dfs_proto.facility.level1 import level1_pb2, level1_pb2_grpc
 
+import datetime
 from ..common.service import grpc_channel
 from ..common.utils import *
-
+from ..common.constants import *
 class Level1DataApi(object):
-    """
-    Level1 Data Operation Class
-    """    
     def __init__(self):
-        self.stub_class = level1_pb2_grpc.Level1SrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve level1 records from database
-
-        parameter kwargs:
-            level0_id: [str]
-            module_id: [str]
-            data_type: [str]
-            create_time : (start, end),
-            qc1_status : [int],
-            prc_status : [int],
-            filename: [str]
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level1_pb2.FindLevel1Req(
-                obs_id = get_parameter(kwargs, "obs_id"),
-                level0_id = get_parameter(kwargs, "level0_id"),
-                module_id = get_parameter(kwargs, "module_id"),
-                data_type = get_parameter(kwargs, "data_type"),
-                create_time_start = get_parameter(kwargs, "create_time", [None, None])[0],
-                create_time_end = get_parameter(kwargs, "create_time", [None, None])[1],
-                qc1_status = get_parameter(kwargs, "qc1_status", 1024),
-                prc_status = get_parameter(kwargs, "prc_status", 1024),
-                filename = get_parameter(kwargs, "filename"),
-                limit = get_parameter(kwargs, "limit", 0),
-                pipeline_id = get_parameter(kwargs, "pipeline_id", ""),
-                detector_no = get_parameter(kwargs, "detector_no", ""),
-                filter = get_parameter(kwargs, "filter", ""),
-                object_name = get_parameter(kwargs, "object_name", ""),
-                other_conditions = {
-                    "ra_cen": str(get_parameter(kwargs, "ra_cen", '')),
-                    "dec_cen": str(get_parameter(kwargs, "dec_cen", '')),
-                    "radius_cen": str(get_parameter(kwargs, "radius_cen", ''))
-                }
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level1Record, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("Level1Servicer.Find", kwargs)
 
     @grpc_channel
     def find_by_brick_ids(self, **kwargs):
-        ''' retrieve level1 records by brick_ids like [1,2,3,4]
-
-        :param kwargs: Parameter dictionary, key items support:
-            brick_ids: [list]
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindByBrickIds.with_call(level1_pb2.FindByBrickIdsReq(
-                brick_ids = get_parameter(kwargs, "brick_ids", [])
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level1Record, resp.records))
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        if not isinstance(get_parameter(kwargs, "brick_ids"), list):
+            return Result.error(message="brick_ids is not a list")        
+        return find_req("Level1Servicer.FindByBrickIds", kwargs)
 
     @grpc_channel
     def find_by_ids(self, **kwargs):
-        ''' retrieve level1 records by internal level1 ids like [1,2,3,4]
-
-        :param kwargs: Parameter dictionary, key items support:
-            ids: [list]
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindByIds.with_call(level1_pb2.FindByIdsReq(
-                ids = get_parameter(kwargs, "ids", [])
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level1Record, resp.records))
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        if not isinstance(get_parameter(kwargs, "ids"), list):
+            return Result.error(message="ids is not a list")
+        return find_req("Level1Servicer.FindByIds", kwargs)
     
     @grpc_channel
     def sls_find_by_qc1_status(self, **kwargs):
-        ''' retrieve level1 records from database
-
-        parameter kwargs:
-            qc1_status: [str]
-            limit: limits returns the number of records,default 1
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindByQc1Status.with_call(level1_pb2.FindLevel1Req(
-                level0_id = None,
-                data_type = None,
-                create_time_start = None,
-                create_time_end = None,
-                qc1_status = get_parameter(kwargs, "qc1_status", -1),
-                prc_status = None,
-                limit = get_parameter(kwargs, "limit", 1),
-                other_conditions = {"orderBy":"create_time asc", "module_id": 'SLS'}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level1Record, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        conditions = {"limit": 1}
+        conditions.update(kwargs)
+        return find_req("Level1Servicer.FindByQc1Status", conditions)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int] 
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Get.with_call(level1_pb2.GetLevel1Req(
-                id = get_parameter(kwargs, "id"),
-                level0_id = get_parameter(kwargs, "level0_id"),
-                data_type = get_parameter(kwargs, "data_type") 
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"data not found")  
-
-            return Result.ok_data(data = Level1Record().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
+        return get_req("Level1Servicer.Get", kwargs)
 
     @grpc_channel
     def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        fits_id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                level1_pb2.UpdateProcStatusReq(id=fits_id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level1Servicer.UpdateProcStatus", kwargs)
 
     @grpc_channel
     def update_qc1_status(self, **kwargs):
-        ''' update the status of QC0
-        
-        parameter kwargs:
-            id : [int],
-            status : [int]
-        '''        
-        fits_id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateQc1Status.with_call(
-                level1_pb2.UpdateQc1StatusReq(id=fits_id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level1Servicer.UpdateQc1Status", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a level1 record into database
-
-        parameter kwargs:
-            level0_id : [str]
-            data_type : [str]
-            cor_sci_id : [int]
-            prc_params : [str]
-            filename : [str]
-            file_path : [str]            
-            prc_status : [int]
-            prc_time : [str]
-            pipeline_id : [str]
-            pmapname : [str]
-            build : [int]
-
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = level1_pb2.Level1Record(
-            id = 0,
-            level0_id = get_parameter(kwargs, "level0_id", ""),
-            module_id = get_parameter(kwargs, "module_id", ""),
-            data_type = get_parameter(kwargs, "data_type", ""),
-            cor_sci_id = get_parameter(kwargs, "cor_sci_id", 0),
-            prc_params = get_parameter(kwargs, "prc_params", ""),
-            filename = get_parameter(kwargs, "filename", ""),
-            file_path = get_parameter(kwargs, "file_path", ""),
-            qc1_status = get_parameter(kwargs, "qc1_status", 0),
-            prc_status = get_parameter(kwargs, "prc_status", 0),
-            prc_time = get_parameter(kwargs, "prc_time", format_datetime(datetime.now())),
-            pipeline_id = get_parameter(kwargs, "pipeline_id", ""),
-            build = get_parameter(kwargs, "build", 0),
-            pmapname = get_parameter(kwargs, "pmapname", ""),
-            refs = get_parameter(kwargs, "refs", {})
-        )
-        def stream(rec):
-            with open(rec.file_path, 'rb') as f:
-                while True:
-                    data = f.read(UPLOAD_CHUNK_SIZE)
-                    if not data:
-                        break
-                    yield level1_pb2.WriteLevel1Req(record = rec, data = data)
         try:
-            if not rec.file_path:
+            conditions = {}
+            conditions.update(kwargs)
+            file_path = get_parameter(kwargs, "file_path", "")
+            filename = get_parameter(kwargs, "filename", "")            
+            if not file_path:
                 return Result.error(message="file_path is blank")
-            if not os.path.exists(rec.file_path):
-                return Result.error(message="the file [%s] not existed" % (rec.file_path, ))
-            if not rec.filename:
-                rec.filename = os.path.basename(rec.file_path)
-
-            resp,_ = self.stub.Write.with_call(stream(rec),metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level1Record().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+            if not os.path.exists(file_path):
+                return Result.error(message="the file [%s] not existed" % (file_path, ))
+            if not filename:
+                filename = os.path.basename(file_path)
+                conditions["filename"] = filename
+            if not conditions.get("qc1_status", ''):
+                conditions["qc1_status"] = "0"
+            if not conditions.get("prc_status", ''):
+                conditions["prc_status"] = "-1024"
+            if not conditions.get("prc_time", ''):
+                time_now = datetime.datetime.now()
+                conditions["prc_time"] = time_now.strftime('%Y-%m-%d %H:%M:%S')  
+
+            if not conditions.get("build_id", ''):
+                conditions["build_id"] = "0"
+            with open(file_path, 'rb') as f:
+                byte_stream = io.BytesIO(f.read())
+                return write_stream_req("Level1Servicer.Write", byte_stream, conditions)
+        except Exception as e:
+            return Result.error(message="%s" % (e,))
diff --git a/csst_dfs_api_cluster/facility/level1prc.py b/csst_dfs_api_cluster/facility/level1prc.py
index 79afdf8d5e17014fd10193cc24b2eda2ee7337d5..987af0a80660cc8b9576efec5c2bca077a9b9d37 100644
--- a/csst_dfs_api_cluster/facility/level1prc.py
+++ b/csst_dfs_api_cluster/facility/level1prc.py
@@ -1,104 +1,19 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Level1PrcRecord
-
-from csst_dfs_proto.facility.level1prc import level1prc_pb2, level1prc_pb2_grpc
 
 from ..common.service import grpc_channel
 from ..common.utils import *
 
 class Level1PrcApi(object):
     def __init__(self):
-        self.stub_class = level1prc_pb2_grpc.Level1PrcSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve level1 procedure records from database
-
-        parameter kwargs:
-            level1_id: [str]
-            pipeline_id: [str]
-            prc_module: [str]
-            prc_status : [int]
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level1prc_pb2.FindLevel1PrcReq(
-                level1_id = get_parameter(kwargs, "level1_id"),
-                pipeline_id = get_parameter(kwargs, "pipeline_id"),
-                prc_module = get_parameter(kwargs, "prc_module"),
-                prc_status = get_parameter(kwargs, "prc_status"),
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Level1PrcRecord, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("Level1PrcServicer.Find", kwargs)
 
     @grpc_channel
     def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                level1prc_pb2.UpdateProcStatusReq(id=id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level1PrcServicer.UpdateProcStatus", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a level1 procedure record into database
-
-        parameter kwargs:
-            level1_id : [int]
-            pipeline_id : [str]
-            prc_module : [str]
-            params_file_path : [str]
-            prc_status : [int]
-            prc_time : [str]
-            result_file_path : [str]
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = level1prc_pb2.Level1PrcRecord(
-            id = 0,
-            level1_id = get_parameter(kwargs, "level1_id"),
-            pipeline_id = get_parameter(kwargs, "pipeline_id"),
-            prc_module = get_parameter(kwargs, "prc_module"),
-            params_file_path = get_parameter(kwargs, "params_file_path"),
-            prc_status = get_parameter(kwargs, "prc_status", -1),
-            prc_time = get_parameter(kwargs, "prc_time"),
-            result_file_path = get_parameter(kwargs, "result_file_path")
-        )
-        req = level1prc_pb2.WriteLevel1PrcReq(record = rec)
-        try:
-            resp,_ = self.stub.Write.with_call(req,metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data = Level1PrcRecord().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return write_req("Level1PrcServicer.Write", kwargs)
diff --git a/csst_dfs_api_cluster/facility/level2.py b/csst_dfs_api_cluster/facility/level2.py
index e39f350305d559cc0571774c7239373e0a6ed092..adcd7de3b5bdf00a423ecc83e4fa68d8c3712c58 100644
--- a/csst_dfs_api_cluster/facility/level2.py
+++ b/csst_dfs_api_cluster/facility/level2.py
@@ -9,69 +9,22 @@ from collections.abc import Iterable
 from csst_dfs_commons.models import Result
 from csst_dfs_commons.models.common import from_proto_model_list
 from csst_dfs_commons.models.level2 import Level2Record, filter_table_name
-from csst_dfs_commons.models.constants import UPLOAD_CHUNK_SIZE
-from csst_dfs_proto.facility.level2 import level2_pb2, level2_pb2_grpc
+
 from ..common.service import grpc_channel
 from ..common.utils import *
+from ..common.constants import *
 
 class Level2DataApi(object):
     """
     Level2 Data Operation Class
     """    
     def __init__(self):
-        self.stub_class = level2_pb2_grpc.Level2SrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve level2 records from database
-
-        parameter kwargs:
-            level0_id: [str]
-            level1_id: [int]
-            module_id: [str]
-            brick_id: [int]            
-            data_type: [str]
-            create_time : (start, end),
-            qc2_status : [int],
-            prc_status : [int],
-            import_status : [int],
-            filename: [str],
-            build : [int],
-            pipeline_id: [str],                
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level2_pb2.FindLevel2Req(
-                level0_id = get_parameter(kwargs, "level0_id"),
-                level1_id = get_parameter(kwargs, "level1_id"),
-                module_id = get_parameter(kwargs, "module_id"),
-                brick_id = get_parameter(kwargs, "brick_id"),
-                data_type = get_parameter(kwargs, "data_type"),
-                create_time_start = get_parameter(kwargs, "create_time", [None, None])[0],
-                create_time_end = get_parameter(kwargs, "create_time", [None, None])[1],
-                qc2_status = get_parameter(kwargs, "qc2_status", 1024),
-                prc_status = get_parameter(kwargs, "prc_status", 1024),
-                import_status = get_parameter(kwargs, "import_status", 1024),
-                filename = get_parameter(kwargs, "filename"),
-                object_name = get_parameter(kwargs, "object_name"),
-                limit = get_parameter(kwargs, "limit", 0),
-                pipeline_id = get_parameter(kwargs, "pipeline_id",""),
-                build = get_parameter(kwargs, "build", -1024),                
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
+        return find_req("Level2Servicer.Find", kwargs)
 
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level2Record, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
     def catalog_columns(self, **kwargs):
         ''' retrieve columns data type
 
@@ -92,211 +45,62 @@ class Level2DataApi(object):
 
     @grpc_channel
     def catalog_query(self, **kwargs):
-        ''' retrieve level2catalog records from database
-
-        parameter kwargs:
-            sql: [str]
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            datas = io.BytesIO()
-            totalCount = 0         
-            
-            resps =  self.stub.FindCatalog(level2_pb2.FindLevel2CatalogReq(
-                sql = get_parameter(kwargs, "sql", None),
-                limit = get_parameter(kwargs, "limit", 0)
-            ),metadata = get_auth_headers())
-            
-            for resp in resps:
-                if resp.success:
-                    datas.write(resp.records)
-                    totalCount = resp.totalCount
-                else:
-                    return Result.error(message = str(resp.error.detail))
-            datas.flush()
-            records = pickle.loads(datas.getvalue())
-            return Result.ok_data(data = records[0]).append("totalCount", totalCount).append("columns", records[1])
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("Level2Servicer.FindCatalog", kwargs)
 
     @grpc_channel
     def coord_cond_sql(self, **kwargs):
-        ''' generate coordinate search condition sql
-
-        :param kwargs: Parameter dictionary, key items support:
-            data_type: [str]
-            ra: [float]
-            dec: [float]
-            radius: [float]
-        
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp =  self.stub.CoordCond(level2_pb2.CoordCondReq(
-                data_type = get_parameter(kwargs, "data_type"),
-                ra = get_parameter(kwargs, "ra"),
-                dec = get_parameter(kwargs, "dec"),
-                radius = get_parameter(kwargs, "radius")
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = resp.condition)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return get_req("Level2Servicer.CoordCond", kwargs)
         
     @grpc_channel
     def find_existed_brick_ids(self, **kwargs):
-        ''' retrieve existed brick_ids in a single exposure catalog
-
-        parameter kwargs:
-            data_type: [str]
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp =  self.stub.FindExistedBricks(level2_pb2.FindExistedBricksReq(
-                data_type = get_parameter(kwargs, "data_type")
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = resp.brick_ids)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("Level2Servicer.FindExistedBricks", kwargs)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int] 
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Get.with_call(level2_pb2.GetLevel2Req(
-                id = get_parameter(kwargs, "id")
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"data not found")  
-
-            return Result.ok_data(data = Level2Record().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
+        return get_req("Level2Servicer.Get", kwargs)
 
     @grpc_channel
     def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        fits_id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                level2_pb2.UpdateProcStatusReq(id=fits_id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level2Servicer.UpdateProcStatus", kwargs)
         
     @grpc_channel
     def update_qc2_status(self, **kwargs):
-        ''' update the status of QC0
-        
-        parameter kwargs:
-            id : [int],
-            status : [int]
-        '''        
-        fits_id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateQc2Status.with_call(
-                level2_pb2.UpdateQc2StatusReq(id=fits_id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level2Servicer.UpdateQc2Status", kwargs)
     
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a level2 record into database
-
-        parameter kwargs:
-            level1_id : [int]
-            brick_id : [int]
-            module_id : [str]
-            object_name: [str]
-            data_type : [str]
-            filename : [str]
-            file_path : [str]            
-            prc_status : [int]
-            prc_time : [str]
-            pipeline_id : [str]
-            build : [int]
-
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = level2_pb2.Level2Record(
-            id = 0,
-            level0_id = get_parameter(kwargs, "level0_id", ""),
-            level1_id = get_parameter(kwargs, "level1_id", 0),
-            brick_id = get_parameter(kwargs, "brick_id", 0),
-            module_id = get_parameter(kwargs, "module_id", ""),
-            data_type = get_parameter(kwargs, "data_type", ""),
-            object_name = get_parameter(kwargs, "object_name", ""),
-            filename = get_parameter(kwargs, "filename", ""),
-            file_path = get_parameter(kwargs, "file_path", ""),
-            qc2_status = get_parameter(kwargs, "qc2_status", 0),
-            prc_status = get_parameter(kwargs, "prc_status", 0),
-            prc_time = get_parameter(kwargs, "prc_time", format_datetime(datetime.now())),
-            build = get_parameter(kwargs, "build", 0), 
-            pipeline_id = get_parameter(kwargs, "pipeline_id", "")
-        )
-        def stream(rec):
-            with open(rec.file_path, 'rb') as f:
-                while True:
-                    data = f.read(UPLOAD_CHUNK_SIZE)
-                    if not data:
-                        break
-                    yield level2_pb2.WriteLevel2Req(record = rec, data = data)
         try:
-            if not rec.module_id:
+            conditions = {}
+            conditions.update(kwargs)
+
+            module_id = get_parameter(kwargs, "module_id", "")
+            data_type = get_parameter(kwargs, "data_type", "")
+            file_path = get_parameter(kwargs, "file_path", "")
+            filename = get_parameter(kwargs, "filename", "")
+            if not module_id:
                 return Result.error(message="module_id is blank")
-            if not rec.data_type:
+            if not data_type:
                 return Result.error(message="data_type is blank")
-            if not rec.file_path:
+            if not file_path:
                 return Result.error(message="file_path is blank")
-            if not os.path.exists(rec.file_path):
-                return Result.error(message="the file [%s] not existed" % (rec.file_path, ))
-            if not rec.filename:
-                rec.filename = os.path.basename(rec.file_path)
+            if not os.path.exists(file_path):
+                return Result.error(message="the file [%s] not existed" % (file_path, ))
+            if not filename:
+                filename = os.path.basename(file_path)
+                conditions["filename"] = filename
 
-            resp,_ = self.stub.Write.with_call(stream(rec),metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level2Record().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+            if not conditions.get("qc2_status", ''):
+                conditions["qc2_status"] = "0"
+
+            if not conditions.get("prc_status", ''):
+                conditions["prc_status"] = "-1024"
+            
+            if not conditions.get("prc_time", ''):
+                time_now = datetime.datetime.now()
+                conditions["prc_time"] = time_now.strftime('%Y-%m-%d %H:%M:%S')
+
+            with open(file_path, 'rb') as f:
+                byte_stream = io.BytesIO(f.read())
+                return write_stream_req("Level2Servicer.Write", byte_stream, conditions)
+        except Exception as e:
+            return Result.error(message="%s" % (e,))
\ No newline at end of file
diff --git a/csst_dfs_api_cluster/facility/level2producer.py b/csst_dfs_api_cluster/facility/level2producer.py
deleted file mode 100644
index 11027dc783ffbaf149152c061f2b8cc14e6f537e..0000000000000000000000000000000000000000
--- a/csst_dfs_api_cluster/facility/level2producer.py
+++ /dev/null
@@ -1,402 +0,0 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Level2Producer, Level2Job, Level2ProducerRuning
-
-from csst_dfs_proto.facility.level2producer import level2producer_pb2, level2producer_pb2_grpc
-
-from ..common.service import grpc_channel
-from ..common.utils import *
-from ..common.constants import UPLOAD_CHUNK_SIZE
-
-class Level2ProducerApi(object):
-    """
-    Level2Producer Operation Class
-    """    
-    def __init__(self):
-        self.stub_class = level2producer_pb2_grpc.Level2ProducerSrvStub
-        self.stub = None
-
-    @grpc_channel
-    def register(self, **kwargs):
-        ''' register a Level2Producer data record into database
- 
-        :param kwargs: Parameter dictionary, key items support:
-            name = [str]\n
-            gitlink = [str]\n
-            paramfiles = [str]\n
-            priority = [int]\n
-            pre_producers = list[int]
-        
-        :returns: csst_dfs_common.models.Result
-        '''  
-        rec = level2producer_pb2.Level2ProducerRecord(
-            id = get_parameter(kwargs, "id", 0),
-            name = get_parameter(kwargs, "name", ""),
-            gitlink = get_parameter(kwargs, "gitlink"),
-            paramfiles = get_parameter(kwargs, "paramfiles"),
-            priority = get_parameter(kwargs, "priority", 0),
-            pre_producers = get_parameter(kwargs, "pre_producers",[]),
-        )
-        req = level2producer_pb2.RegisterReq(record = rec)
-        try:
-            resp,_ = self.stub.Register.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level2Producer().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def find(self, **kwargs):
-        ''' retrieve Level2Producer records from database
-
-        :param kwargs: Parameter dictionary, key items support:
-            key: [str]
-            limit: limits returns the number of records,default 0:no-limit
-        
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level2producer_pb2.FindReq(
-                key = get_parameter(kwargs, "key", "")
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Level2Producer, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            p_id = get_parameter(kwargs, "id", 0)
-            resp, _ =  self.stub.Get.with_call(level2producer_pb2.GetReq(
-                id = p_id
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"{p_id} not found")  
-
-            return Result.ok_data(data=Level2Producer().from_proto_model(resp.record))
-        
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))        
-
-    @grpc_channel
-    def find_nexts(self, **kwargs):
-        ''' retrieve Level2Producer records from database
-
-        :param kwargs: Parameter dictionary, key items support:
-            id : [int]
-        
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.FindNexts.with_call(level2producer_pb2.FindNextsReq(
-                id = get_parameter(kwargs, "id", 0)
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Level2Producer, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def find_start(self, **kwargs):
-        ''' retrieve Level2Producer records from database
-
-        :param kwargs: Parameter dictionary, key items support:
-            key : [str]
-        
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-
-            resp, _ =  self.stub.FindStart.with_call(level2producer_pb2.FindStartReq(
-                key = get_parameter(kwargs, "key", "")
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Level2Producer, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))            
-
-    @grpc_channel
-    def update(self, **kwargs):
-        ''' update a Level2Producer
-        
-        :param kwargs: Parameter dictionary, key items support:
-            id : [int]\n
-            name = [str]\n
-            gitlink = [str]\n
-            paramfiles = [str]\n
-            priority = [int]\n
-            pre_producers = list[int]
-        
-        :returns: csst_dfs_common.models.Result            
-        '''   
-        try:
-            rec = level2producer_pb2.Level2ProducerRecord(
-                    id = get_parameter(kwargs, "id", 0),
-                    name = get_parameter(kwargs, "name", ""),
-                    gitlink = get_parameter(kwargs, "gitlink", ""),
-                    paramfiles = get_parameter(kwargs, "paramfiles", ""),
-                    priority = get_parameter(kwargs, "priority", 0),
-                    pre_producers = get_parameter(kwargs, "pre_producers",[])
-            )            
-            resp,_ = self.stub.Update.with_call(
-                level2producer_pb2.UpdateReq(record = rec),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def delete(self, **kwargs):
-        ''' delete a Level2Producer data
-
-        :param kwargs: Parameter dictionary, key items support:
-            id = [int]
-        
-        :returns: csst_dfs_common.models.Result
-        '''     
-        try:
-            resp,_ = self.stub.Delete.with_call(
-                level2producer_pb2.DeleteReq(
-                    id = get_parameter(kwargs, "id", 0)),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def new_job(self, **kwargs):
-        ''' new a Level2Producer Job
-
-        :param kwargs: Parameter dictionary, key items support:
-            dag = [str]
-        
-        :returns: csst_dfs_common.models.Result
-        '''  
-        rec = level2producer_pb2.Level2JobRecord(
-            id = 0,
-            name = get_parameter(kwargs, "name", ""),
-            dag = get_parameter(kwargs, "dag", "")
-        )
-        req = level2producer_pb2.NewJobReq(record = rec)
-        try:
-            resp,_ = self.stub.NewJob.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level2Job().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def get_job(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            p_id = get_parameter(kwargs, "id", 0)
-            resp, _ =  self.stub.GetJob.with_call(level2producer_pb2.GetJobReq(
-                id = p_id
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"{p_id} not found")  
-
-            return Result.ok_data(data=Level2Job().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))  
-
-    @grpc_channel
-    def update_job(self, **kwargs):
-        ''' update a Level2Producer Job
-
-        :param kwargs: Parameter dictionary, key items support:
-            id = [int]
-            dag = [str]
-            status = [int]
-        
-        :returns: csst_dfs_common.models.Result
-        '''    
-        rec = level2producer_pb2.Level2JobRecord(
-            id = get_parameter(kwargs, "id", 0), 
-            name = get_parameter(kwargs, "name", ""),
-            dag = get_parameter(kwargs, "dag", ""),
-            status = get_parameter(kwargs, "status", -1)
-        )
-        req = level2producer_pb2.UpdateJobReq(record = rec)
-        try:
-            resp,_ = self.stub.UpdateJob.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
-
-    @grpc_channel
-    def new_running(self, **kwargs):
-        ''' insert a Level2ProducerRuningRecord data
-
-        :param kwargs: Parameter dictionary, key items support:
-            job_id = [int]\n
-            producer_id = [int]\n
-            brick_id = [int]\n
-            start_time = [str]\n
-            end_time = [str]\n
-            prc_status = [int]\n
-            prc_result = [str]
-        
-        :returns: csst_dfs_common.models.Result
-        ''' 
-        rec = level2producer_pb2.Level2ProducerRuningRecord(
-            id = 0,
-            job_id = get_parameter(kwargs, "job_id", 0),
-            producer_id = get_parameter(kwargs, "producer_id", 0),
-            brick_id = get_parameter(kwargs, "brick_id", 0),
-            start_time = get_parameter(kwargs, "start_time", ""),
-            prc_status = get_parameter(kwargs, "prc_status", 0),
-            prc_result = get_parameter(kwargs, "prc_result", "")
-        )
-        req = level2producer_pb2.WriteRunningReq(record = rec)
-        try:
-            resp,_ = self.stub.WriteRunning.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level2ProducerRuning().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def get_running(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            p_id = get_parameter(kwargs, "id", 0)
-            resp, _ =  self.stub.GetRunning.with_call(level2producer_pb2.GetRunningReq(
-                id = p_id
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"{p_id} not found")  
-
-            return Result.ok_data(data=Level2ProducerRuning().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))  
-
-    @grpc_channel
-    def update_running(self, **kwargs):
-        ''' udpate a Level2ProducerRuningRecord data
-
-        :param kwargs: Parameter dictionary, key items support:
-            id = [int]\n
-            job_id = [int]\n
-            producer_id = [int]\n
-            brick_id = [int]\n
-            start_time = [str]\n
-            end_time = [str]\n
-            prc_status = [int]\n
-            prc_result = [str]
-        
-        :returns: csst_dfs_common.models.Result
-        ''' 
-        rec = level2producer_pb2.Level2ProducerRuningRecord(
-            id = get_parameter(kwargs, "id", 0),
-            job_id = get_parameter(kwargs, "job_id", 0),
-            producer_id = get_parameter(kwargs, "producer_id", 0),
-            brick_id = get_parameter(kwargs, "brick_id", 0),
-            start_time = get_parameter(kwargs, "start_time", ""),
-            end_time = get_parameter(kwargs, "end_time", ""),
-            prc_status = get_parameter(kwargs, "prc_status", 0),
-            prc_result = get_parameter(kwargs, "prc_result", "")
-        )
-        req = level2producer_pb2.UpdateRunningReq(record = rec)
-        try:
-            resp,_ = self.stub.UpdateRunning.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def find_running(self, **kwargs):
-        ''' find Level2ProducerRuningRecord data
-
-        :param kwargs: Parameter dictionary, key items support:
-            job_id = [int]\n
-            producer_id = [int]\n
-            brick_id = [int]\n
-            prc_status = [int]\n
-            create_time : (start, end)\n
-            limit = [int]
-        
-        :returns: csst_dfs_common.models.Result
-        '''  
-        req = level2producer_pb2.FindRunningReq(
-            job_id = get_parameter(kwargs, "job_id", 0),
-            producer_id = get_parameter(kwargs, "producer_id", 0),
-            brick_id = get_parameter(kwargs, "brick_id", 0),
-            prc_status = get_parameter(kwargs, "prc_status", 0),
-            start_time = get_parameter(kwargs, "create_time", [None, None])[0],
-            end_time = get_parameter(kwargs, "create_time", [None, None])[1],
-            limit = get_parameter(kwargs, "limit", 0)           
-        )
-        try:
-            resp,_ = self.stub.FindRunning.with_call(req, metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Level2ProducerRuning, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))            
\ No newline at end of file
diff --git a/csst_dfs_api_cluster/facility/level2type.py b/csst_dfs_api_cluster/facility/level2type.py
index 67af8b4b4614f5b6389819ff0b1e98833c923298..0f4418158d1e61b15a10a9fa44db7c264dd3b149 100644
--- a/csst_dfs_api_cluster/facility/level2type.py
+++ b/csst_dfs_api_cluster/facility/level2type.py
@@ -1,155 +1,43 @@
-import io
 import os
-import grpc
-import datetime
-import pickle
-
-from collections.abc import Iterable
-
 from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.level2 import Level2TypeRecord
-from csst_dfs_commons.models.constants import UPLOAD_CHUNK_SIZE
-from csst_dfs_proto.facility.level2type import level2type_pb2, level2type_pb2_grpc
-
 from ..common.service import grpc_channel
 from ..common.utils import *
 
 class Level2TypeApi(object):
-    """
-    Level2Type Data Operation Class
-    """    
     def __init__(self):
-        self.stub_class = level2type_pb2_grpc.Level2TypeSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve level2type records from database
-
-        parameter kwargs:
-            module_id: [str]
-            data_type: [str]
-            import_status : [int],
-            page: [int]
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        the_limit = get_parameter(kwargs, "limit", 100000)
-        the_limit = the_limit if the_limit > 0 else 100000
-
-        try:
-            resp, _ =  self.stub.Find.with_call(level2type_pb2.FindLevel2TypeReq(
-                module_id = get_parameter(kwargs, "module_id"),
-                data_type = get_parameter(kwargs, "data_type"),
-                import_status = get_parameter(kwargs, "import_status", 1024),
-                limit = the_limit,
-                page = get_parameter(kwargs, "page", 1)
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level2TypeRecord, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("Level2TypeServicer.Find", kwargs)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            data_type: [str]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Get.with_call(level2type_pb2.GetLevel2TypeReq(
-                data_type = get_parameter(kwargs, "data_type")
-            ),metadata = get_auth_headers())
-
-            if not resp.record or not resp.record.data_type:
-                return Result.error(message=f"data not found")  
-
-            return Result.ok_data(data = Level2TypeRecord().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
+        return get_req("Level2TypeServicer.Get", kwargs)  
 
     @grpc_channel
     def update_import_status(self, **kwargs):
-        ''' update the status of level2 type
-
-        parameter kwargs:
-            data_type: [str]
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        data_type = get_parameter(kwargs, "data_type")
-        status = get_parameter(kwargs, "status", 0)
-        try:
-            resp,_ = self.stub.UpdateImportStatus.with_call(
-                level2type_pb2.UpdateImportStatusReq(data_type=data_type, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("Level2TypeServicer.UpdateImportStatus", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a level2type record into database
-
-        parameter kwargs:
-            data_type : [str]
-            module_id : [str]
-            key_column : [str]
-            hdu_index : [int]
-            demo_filename : [str]
-            demo_file_path : [str]    
-            ra_column : [str]
-            dec_column : [str]
-
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = level2type_pb2.Level2TypeRecord(
-            data_type = get_parameter(kwargs, "data_type", ""),
-            module_id = get_parameter(kwargs, "module_id", ""),
-            key_column = get_parameter(kwargs, "key_column", ""),
-            hdu_index = get_parameter(kwargs, "hdu_index", 0),
-            demo_filename = get_parameter(kwargs, "demo_filename", ""),
-            demo_file_path = get_parameter(kwargs, "demo_file_path", ""),            
-            ra_column = get_parameter(kwargs, "ra_column", ""),            
-            dec_column = get_parameter(kwargs, "dec_column", "")
-        )
-        def stream(rec):
-            with open(rec.demo_file_path, 'rb') as f:
-                while True:
-                    data = f.read(UPLOAD_CHUNK_SIZE)
-                    if not data:
-                        break
-                    yield level2type_pb2.WriteLevel2TypeReq(record = rec, data = data)
         try:
-            if not rec.data_type:
-                return Result.error(message="data_type is blank")
-            if not rec.demo_file_path:
+            data_type = get_parameter(kwargs, "data_type", "")
+            if not data_type:
+                return Result.error(message="the data_type is blank")
+            file_path = get_parameter(kwargs, "demo_file_path", "")
+            filename = get_parameter(kwargs, "demo_filename", "")            
+            if not file_path:
                 return Result.error(message="demo_file_path is blank")
-            if not os.path.exists(rec.demo_file_path):
-                return Result.error(message="the file [%s] not existed" % (rec.demo_file_path, ))
-            if not rec.demo_filename:
-                rec.demo_filename = os.path.basename(rec.demo_file_path)
-
-            resp,_ = self.stub.Write.with_call(stream(rec),metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level2TypeRecord().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+            if not os.path.exists(file_path):
+                return Result.error(message="the file [%s] not existed" % (file_path, ))
+            if not filename:
+                filename = os.path.basename(file_path)
+                conditions = {}
+                conditions.update(kwargs)
+                conditions["demo_filename"] = filename
+            with open(file_path, 'rb') as f:
+                byte_stream = io.BytesIO(f.read())
+                return write_stream_req("Level2TypeServicer.Write", byte_stream, kwargs)
+        except Exception as e:
+            return Result.error(message="%s" % (e,))
diff --git a/csst_dfs_api_cluster/facility/observation.py b/csst_dfs_api_cluster/facility/observation.py
index bba43a10a02da1c9a67d3fa6b2d4305aed57007f..baa6573e1255842b8f50819a89e62446a2c369ec 100644
--- a/csst_dfs_api_cluster/facility/observation.py
+++ b/csst_dfs_api_cluster/facility/observation.py
@@ -1,171 +1,26 @@
-import grpc
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import Observation
-from csst_dfs_proto.facility.observation import observation_pb2, observation_pb2_grpc
-
 from ..common.service import grpc_channel
 from ..common.utils import *
-from ..common.constants import UPLOAD_CHUNK_SIZE
 
 class ObservationApi(object):
-    """
-    Observation Operation Class
-    """    
     def __init__(self):
-        self.stub_class = observation_pb2_grpc.ObservationSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve exposure records from database
-
-        parameter kwargs:
-            module_id: [str]
-            obs_type: [str]
-            obs_time : (start, end),
-            qc0_status : [int],
-            prc_status : [int],
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(observation_pb2.FindObservationReq(
-                module_id = get_parameter(kwargs, "module_id"),
-                obs_type = get_parameter(kwargs, "obs_type"),
-                exp_time_start = get_parameter(kwargs, "obs_time", [None, None])[0],
-                exp_time_end = get_parameter(kwargs, "obs_time", [None, None])[1],
-                qc0_status = get_parameter(kwargs, "qc0_status"),
-                prc_status = get_parameter(kwargs, "prc_status"),
-                limit = get_parameter(kwargs, "limit", 0),
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data = from_proto_model_list(Observation, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return find_req("ObservationServicer.Find", kwargs)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int],
-            obs_id = [str]
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            id = get_parameter(kwargs, "id")
-            obs_id = get_parameter(kwargs, "obs_id")
-            resp, _ =  self.stub.Get.with_call(observation_pb2.GetObservationReq(
-                id = id,
-                obs_id = obs_id
-            ),metadata = get_auth_headers())
-
-            if resp.observation is None or resp.observation.id == 0:
-                return Result.error(message=f"not found")  
-
-            return Result.ok_data(data=Observation().from_proto_model(resp.observation))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))        
+        return get_req("ObservationServicer.Get", kwargs)        
 
     @grpc_channel
     def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            obs_id = [str],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        id = get_parameter(kwargs, "id")
-        obs_id = get_parameter(kwargs, "obs_id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                observation_pb2.UpdateProcStatusReq(
-                    id = id,
-                    obs_id = obs_id,
-                    status = status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("ObservationServicer.UpdateProcStatus", kwargs)
 
     @grpc_channel
     def update_qc0_status(self, **kwargs):
-        ''' update the status of QC0
-        
-        parameter kwargs:
-            id : [int],
-            obs_id = [str],
-            status : [int]
-        '''        
-        id = get_parameter(kwargs, "id")
-        obs_id = get_parameter(kwargs, "obs_id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateQc0Status.with_call(
-                observation_pb2.UpdateQc0StatusReq(
-                    id = id,
-                    obs_id = obs_id,
-                    status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return update_req("ObservationServicer.UpdateQc0Status", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a observational record into database
-
-        parameter kwargs:
-            id = [id]
-            obs_id = [str]
-            obs_time = [str]
-            exp_time = [int]
-            module_id = [str]
-            obs_type = [str]
-            facility_status_id = [int]
-            module_status_id = [int]
-        return: csst_dfs_common.models.Result
-        '''   
-
-        rec = observation_pb2.Observation(
-            id = get_parameter(kwargs, "id", 0),
-            obs_id = get_parameter(kwargs, "obs_id", ""),
-            obs_time = get_parameter(kwargs, "obs_time"),
-            exp_time = get_parameter(kwargs, "exp_time"),
-            module_id = get_parameter(kwargs, "module_id"),
-            obs_type = get_parameter(kwargs, "obs_type"),
-            facility_status_id = get_parameter(kwargs, "facility_status_id"),
-            module_status_id = get_parameter(kwargs, "module_status_id")
-        )
-        req = observation_pb2.WriteObservationReq(record = rec)
-        try:
-            resp,_ = self.stub.Write.with_call(req,metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Observation().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-    
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+        return write_req("ObservationServicer.Write", kwargs)
diff --git a/csst_dfs_api_cluster/facility/otherdata.py b/csst_dfs_api_cluster/facility/otherdata.py
index 3396882a0ba199b30426864ec288c208e8f9333a..a945c3f240441fd55961f6a554339315e1068bcf 100644
--- a/csst_dfs_api_cluster/facility/otherdata.py
+++ b/csst_dfs_api_cluster/facility/otherdata.py
@@ -1,130 +1,35 @@
-import os
-import grpc
-import datetime
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.facility import OtherDataRecord
-from csst_dfs_commons.models.constants import UPLOAD_CHUNK_SIZE
-from csst_dfs_proto.facility.otherdata import otherdata_pb2, otherdata_pb2_grpc
 
 from ..common.service import grpc_channel
 from ..common.utils import *
-
+from ..common.constants import *
 class OtherDataApi(object):
-    """
-    OtherData Data Operation Class
-    """    
     def __init__(self):
-        self.stub_class = otherdata_pb2_grpc.OtherDataSrvStub
         self.stub = None
 
     @grpc_channel
     def find(self, **kwargs):
-        ''' retrieve otherdata records from database
-
-        parameter kwargs:
-            obs_id: [str]
-            detector_no: [str]
-            module_id: [str]
-            file_type: [str]
-            filename: [str]
-            create_time : (start, end)
-            pipeline_id : [str]
-            limit: limits returns the number of records,default 0:no-limit
-
-        return: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(otherdata_pb2.FindOtherDataReq(
-                obs_id = get_parameter(kwargs, "obs_id"),
-                detector_no = get_parameter(kwargs, "detector_no", ""),
-                module_id = get_parameter(kwargs, "module_id"),
-                file_type = get_parameter(kwargs, "file_type"),
-                create_time_start = get_parameter(kwargs, "create_time", [None, None])[0],
-                create_time_end = get_parameter(kwargs, "create_time", [None, None])[1],
-                pipeline_id = get_parameter(kwargs, "pipeline_id", ""),
-                filename = get_parameter(kwargs, "filename"),
-                limit = get_parameter(kwargs, "limit", 0)
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(OtherDataRecord, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
+        return find_req("OtherDataServicer.Find", kwargs)
 
     @grpc_channel
     def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int] 
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Get.with_call(otherdata_pb2.GetOtherDataReq(
-                id = get_parameter(kwargs, "id")
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"data not found")  
-
-            return Result.ok_data(data = OtherDataRecord().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
-
+        return get_req("OtherDataServicer.Get", kwargs)
 
     @grpc_channel
     def write(self, **kwargs):
-        ''' insert a otherdata record into database
-
-        parameter kwargs:
-            obs_id: [str]
-            detector_no : [str]
-            module_id : [str]
-            file_type : [str]
-            filename : [str]
-            file_path : [str]            
-            pipeline_id : [str]
-
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = otherdata_pb2.OtherDataRecord(
-            id = 0,
-            obs_id = get_parameter(kwargs, "obs_id"),
-            module_id = get_parameter(kwargs, "module_id", ''),
-            file_type = get_parameter(kwargs, "file_type"),
-            detector_no = get_parameter(kwargs, "detector_no"),
-            filename = get_parameter(kwargs, "filename", ""),
-            file_path = get_parameter(kwargs, "file_path", ""),
-            pipeline_id = get_parameter(kwargs, "pipeline_id")
-        )
-        def stream(rec):
-            with open(rec.file_path, 'rb') as f:
-                while True:
-                    data = f.read(UPLOAD_CHUNK_SIZE)
-                    if not data:
-                        break
-                    yield otherdata_pb2.WriteOtherDataReq(record = rec, data = data)
         try:
-            if not rec.file_path:
+            file_path = get_parameter(kwargs, "file_path", "")
+            filename = get_parameter(kwargs, "filename", "")            
+            if not file_path:
                 return Result.error(message="file_path is blank")
-            if not os.path.exists(rec.file_path):
-                return Result.error(message="the file [%s] not existed" % (rec.file_path, ))
-            if not rec.filename:
-                rec.filename = os.path.basename(rec.file_path)
-
-            resp,_ = self.stub.Write.with_call(stream(rec),metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=OtherDataRecord().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
+            if not os.path.exists(file_path):
+                return Result.error(message="the file [%s] not existed" % (file_path, ))
+            if not filename:
+                filename = os.path.basename(file_path)
+                conditions = {}
+                conditions.update(kwargs)
+                conditions["filename"] = filename
+            with open(file_path, 'rb') as f:
+                byte_stream = io.BytesIO(f.read())
+                return write_stream_req("OtherDataServicer.Write", byte_stream, kwargs)
+        except Exception as e:
+            return Result.error(message="%s" % (e,))
diff --git a/csst_dfs_api_cluster/hstdm/level2.py b/csst_dfs_api_cluster/hstdm/level2.py
deleted file mode 100644
index c6a1b5f9e513da13f027173d76f1910dd603fb85..0000000000000000000000000000000000000000
--- a/csst_dfs_api_cluster/hstdm/level2.py
+++ /dev/null
@@ -1,183 +0,0 @@
-import os
-import grpc
-import datetime
-
-from csst_dfs_commons.models import Result
-from csst_dfs_commons.models.common import from_proto_model_list
-from csst_dfs_commons.models.hstdm import Level2Data
-from csst_dfs_commons.models.constants import UPLOAD_CHUNK_SIZE
-from csst_dfs_proto.hstdm.level2 import level2_pb2, level2_pb2_grpc
-
-from ..common.service import grpc_channel
-from ..common.utils import *
-
-class Level2DataApi(object):
-    """
-    Level2 Data Operation Class
-    """    
-    def __init__(self):
-        self.stub = level2_pb2_grpc.Level2SrvStub
-        self.stub = None
-
-    @grpc_channel
-    def find(self, **kwargs):
-        ''' retrieve level2 records from database
-
-        :param kwargs: Parameter dictionary, key items support:
-            level0_id: [str]
-            level1_id: [int]
-            project_id: [int]
-            file_type: [str]
-            create_time : (start, end),
-            qc2_status : [int],
-            prc_status : [int],
-            filename: [str]
-            limit: limits returns the number of records,default 0:no-limit
-
-        :returns: csst_dfs_common.models.Result
-        '''
-        try:
-            resp, _ =  self.stub.Find.with_call(level2_pb2.FindLevel2Req(
-                level0_id = get_parameter(kwargs, "level0_id",None),
-                level1_id = get_parameter(kwargs, "level1_id", 0),
-                project_id = get_parameter(kwargs, "project_id", 0),
-                file_type = get_parameter(kwargs, "file_type"),
-                create_time_start = get_parameter(kwargs, "create_time", [None, None])[0],
-                create_time_end = get_parameter(kwargs, "create_time", [None, None])[1],
-                qc2_status = get_parameter(kwargs, "qc2_status", 1024),
-                prc_status = get_parameter(kwargs, "prc_status", 1024),
-                filename = get_parameter(kwargs, "filename"),
-                limit = get_parameter(kwargs, "limit", 0),
-                other_conditions = {"test":"cnlab.test"}
-            ),metadata = get_auth_headers())
-
-            if resp.success:
-                return Result.ok_data(data=from_proto_model_list(Level2Data, resp.records)).append("totalCount", resp.totalCount)
-            else:
-                return Result.error(message = str(resp.error.detail))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def get(self, **kwargs):
-        '''  fetch a record from database
-
-        parameter kwargs:
-            id : [int] 
-
-        return csst_dfs_common.models.Result
-        '''
-        try:
-            fits_id = get_parameter(kwargs, "id")
-            resp, _ =  self.stub.Get.with_call(level2_pb2.GetLevel2Req(
-                id = fits_id
-            ),metadata = get_auth_headers())
-
-            if resp.record is None or resp.record.id == 0:
-                return Result.error(message=f"id:{fits_id} not found")  
-
-            return Result.ok_data(data = Level2Data().from_proto_model(resp.record))
-
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))   
-
-    @grpc_channel
-    def update_proc_status(self, **kwargs):
-        ''' update the status of reduction
-
-        parameter kwargs:
-            id : [int],
-            status : [int]
-
-        return csst_dfs_common.models.Result
-        '''
-        fits_id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateProcStatus.with_call(
-                level2_pb2.UpdateProcStatusReq(id=fits_id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-    @grpc_channel
-    def update_qc2_status(self, **kwargs):
-        ''' update the status of QC2
-        
-        parameter kwargs:
-            id : [int],
-            status : [int]
-        '''        
-        fits_id = get_parameter(kwargs, "id")
-        status = get_parameter(kwargs, "status")
-        try:
-            resp,_ = self.stub.UpdateQc2Status.with_call(
-                level2_pb2.UpdateQc2StatusReq(id=fits_id, status=status),
-                metadata = get_auth_headers()
-            )
-            if resp.success:
-                return Result.ok_data()
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))
-
-    @grpc_channel
-    def write(self, **kwargs):
-        ''' insert a level2 record into database
-
-        parameter kwargs:
-            level0_id: [str]
-            level1_id: [int]
-            project_id: [int]
-            file_type : [str]
-            filename : [str]
-            file_path : [str]            
-            prc_status : [int]
-            prc_time : [str]
-            pipeline_id : [str]
-            refs: [dict]
-
-        return csst_dfs_common.models.Result
-        '''   
-
-        rec = level2_pb2.Level2Record(
-            id = 0,
-            level0_id = get_parameter(kwargs, "level0_id", None),
-            level1_id = get_parameter(kwargs, "level1_id", 0),
-            project_id = get_parameter(kwargs, "project_id", 0),
-            file_type = get_parameter(kwargs, "file_type"),
-            filename = get_parameter(kwargs, "filename", ""),
-            file_path = get_parameter(kwargs, "file_path", ""),
-            qc2_status = get_parameter(kwargs, "qc2_status", 0),
-            prc_status = get_parameter(kwargs, "prc_status", 0),
-            prc_time = get_parameter(kwargs, "prc_time", format_datetime(datetime.now())),
-            pipeline_id = get_parameter(kwargs, "pipeline_id")
-        )
-        def stream(rec):
-            with open(rec.file_path, 'rb') as f:
-                while True:
-                    data = f.read(UPLOAD_CHUNK_SIZE)
-                    if not data:
-                        break
-                    yield level2_pb2.WriteLevel2Req(record = rec, data = data)
-        try:
-            if not rec.file_path:
-                return Result.error(message="file_path is blank")
-            if not os.path.exists(rec.file_path):
-                return Result.error(message="the file [%s] not existed" % (rec.file_path, ))
-            if not rec.filename:
-                rec.filename = os.path.basename(rec.file_path)
-
-            resp,_ = self.stub.Write.with_call(stream(rec),metadata = get_auth_headers())
-            if resp.success:
-                return Result.ok_data(data=Level2Data().from_proto_model(resp.record))
-            else:
-                return Result.error(message = str(resp.error.detail))
-        except grpc.RpcError as e:
-            return Result.error(message="%s:%s" % (e.code().value, e.details()))