diff --git a/speechserving/setup.py b/speechserving/setup.py
index e69de29b..97043fd7 100644
--- a/speechserving/setup.py
+++ b/speechserving/setup.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/speechserving/speechserving/__init__.py b/speechserving/speechserving/__init__.py
index e69de29b..97043fd7 100644
--- a/speechserving/speechserving/__init__.py
+++ b/speechserving/speechserving/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/speechserving/speechserving/bin/main.py b/speechserving/speechserving/bin/main.py
index ffc2228f..c5167dd4 100644
--- a/speechserving/speechserving/bin/main.py
+++ b/speechserving/speechserving/bin/main.py
@@ -14,7 +14,6 @@
 import argparse
 
 
-
 def init(args):
     """ 系统初始化
     """
@@ -27,13 +26,18 @@ def main(args):
         app.run(host='0.0.0.0', port=conf.port)
 
 
-
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
-    parser.add_argument("--config_file", action="store",
-                        help="yaml file of the app", default="./conf/application.yaml")
-    parser.add_argument("--log_file", action="store",
-                        help="log file", default="./log/paddlespeech.log")
+    parser.add_argument(
+        "--config_file",
+        action="store",
+        help="yaml file of the app",
+        default="./conf/application.yaml")
+    parser.add_argument(
+        "--log_file",
+        action="store",
+        help="log file",
+        default="./log/paddlespeech.log")
     args = parser.parse_args()
 
     main(args)
diff --git a/speechserving/speechserving/bin/paddlespeech-client.py b/speechserving/speechserving/bin/paddlespeech-client.py
index ffc2228f..c5167dd4 100644
--- a/speechserving/speechserving/bin/paddlespeech-client.py
+++ b/speechserving/speechserving/bin/paddlespeech-client.py
@@ -14,7 +14,6 @@
 import argparse
 
 
-
 def init(args):
     """ 系统初始化
     """
@@ -27,13 +26,18 @@ def main(args):
         app.run(host='0.0.0.0', port=conf.port)
 
 
-
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
-    parser.add_argument("--config_file", action="store",
-                        help="yaml file of the app", default="./conf/application.yaml")
-    parser.add_argument("--log_file", action="store",
-                        help="log file", default="./log/paddlespeech.log")
+    parser.add_argument(
+        "--config_file",
+        action="store",
+        help="yaml file of the app",
+        default="./conf/application.yaml")
+    parser.add_argument(
+        "--log_file",
+        action="store",
+        help="log file",
+        default="./log/paddlespeech.log")
     args = parser.parse_args()
 
     main(args)
diff --git a/speechserving/speechserving/bin/paddlespeech-server.py b/speechserving/speechserving/bin/paddlespeech-server.py
index ffc2228f..c5167dd4 100644
--- a/speechserving/speechserving/bin/paddlespeech-server.py
+++ b/speechserving/speechserving/bin/paddlespeech-server.py
@@ -14,7 +14,6 @@
 import argparse
 
 
-
 def init(args):
     """ 系统初始化
     """
@@ -27,13 +26,18 @@ def main(args):
         app.run(host='0.0.0.0', port=conf.port)
 
 
-
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
-    parser.add_argument("--config_file", action="store",
-                        help="yaml file of the app", default="./conf/application.yaml")
-    parser.add_argument("--log_file", action="store",
-                        help="log file", default="./log/paddlespeech.log")
+    parser.add_argument(
+        "--config_file",
+        action="store",
+        help="yaml file of the app",
+        default="./conf/application.yaml")
+    parser.add_argument(
+        "--log_file",
+        action="store",
+        help="log file",
+        default="./log/paddlespeech.log")
     args = parser.parse_args()
 
     main(args)
diff --git a/speechserving/speechserving/conf/application.yaml b/speechserving/speechserving/conf/application.yaml
index e69de29b..358a76dc 100644
--- a/speechserving/speechserving/conf/application.yaml
+++ b/speechserving/speechserving/conf/application.yaml
@@ -0,0 +1,8 @@
+# This is the parameter configuration file for PaddleSpeech Serving.
+
+##################################################################
+#                     SERVER SETTING                             #
+##################################################################
+host: '0.0.0.0'
+port: 8090
+
diff --git a/speechserving/speechserving/engine/__init__.py b/speechserving/speechserving/engine/__init__.py
index e69de29b..97043fd7 100644
--- a/speechserving/speechserving/engine/__init__.py
+++ b/speechserving/speechserving/engine/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/speechserving/speechserving/engine/asr/python/asr_engine.py b/speechserving/speechserving/engine/asr/python/asr_engine.py
index 1ea3cd2a..6bd8b616 100644
--- a/speechserving/speechserving/engine/asr/python/asr_engine.py
+++ b/speechserving/speechserving/engine/asr/python/asr_engine.py
@@ -11,15 +11,19 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from engine import BaseEngine
+from engine.base_engine import BaseEngine
+
+from utils.log import logger
 
 __all__ = ['ASREngine']
 
-class ASREngine(BaseEngine):
 
-    def __init__(self, name):
+class ASREngine(BaseEngine):
+    def __init__(self, name=None):
         super(ASREngine, self).__init__()
-
+        self.executor = name
+        self.input = None
+        self.output = None
 
     def init(self):
         pass
@@ -28,8 +32,8 @@ class ASREngine(BaseEngine):
         pass
 
     def run(self):
-        pass
-
+        logger.info("start run asr engine")
+        return "hello world"
 
 
 if __name__ == "__main__":
@@ -39,4 +43,3 @@ if __name__ == "__main__":
     print(class1 is class2)
     print(id(class1))
     print(id(class2))
-
diff --git a/speechserving/speechserving/engine/base_engine.py b/speechserving/speechserving/engine/base_engine.py
index 1f9f6fa0..36048dcc 100644
--- a/speechserving/speechserving/engine/base_engine.py
+++ b/speechserving/speechserving/engine/base_engine.py
@@ -18,6 +18,7 @@ from typing import Union
 
 from pattern_singleton import Singleton
 
+
 class BaseEngine(metaclass=Singleton):
     """
         An base engine class
diff --git a/speechserving/speechserving/main.py b/speechserving/speechserving/main.py
index 864c543d..d3e6edc1 100644
--- a/speechserving/speechserving/main.py
+++ b/speechserving/speechserving/main.py
@@ -15,6 +15,7 @@ import argparse
 
 import uvicorn
 import yaml
+
 from engine.tts.python.tts_engine import TTSEngine
 from fastapi import FastAPI
 from restful.api import router as api_router
@@ -31,6 +32,7 @@ def init(args):
     app.include_router(api_router)
 
     # engine single 
+
     TTS_ENGINE = TTSEngine()
 
     # todo others 
@@ -56,7 +58,8 @@ if __name__ == "__main__":
         "--config_file",
         action="store",
         help="yaml file of the app",
-        default="./server.yaml")
+        default="./conf/tts/tts.yaml")
+
     parser.add_argument(
         "--log_file",
         action="store",
diff --git a/speechserving/speechserving/restful/__init__.py b/speechserving/speechserving/restful/__init__.py
index e69de29b..97043fd7 100644
--- a/speechserving/speechserving/restful/__init__.py
+++ b/speechserving/speechserving/restful/__init__.py
@@ -0,0 +1,13 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
diff --git a/speechserving/speechserving/restful/api.py b/speechserving/speechserving/restful/api.py
index c6250ce7..e25a3158 100644
--- a/speechserving/speechserving/restful/api.py
+++ b/speechserving/speechserving/restful/api.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 from fastapi import APIRouter
 
+
 from .tts_api import router as tts_router
 #from .asr_api import router as asr_router
 
diff --git a/speechserving/speechserving/restful/asr_api.py b/speechserving/speechserving/restful/asr_api.py
new file mode 100644
index 00000000..eb335e09
--- /dev/null
+++ b/speechserving/speechserving/restful/asr_api.py
@@ -0,0 +1,63 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+from fastapi import APIRouter
+import base64
+
+
+from engine.asr.python.asr_engine import ASREngine
+from .response import ASRResponse
+from .request import ASRRequest
+
+router = APIRouter()
+
+
+@router.get('/paddlespeech/asr/help')
+def help():
+    """help
+
+    Returns:
+        json: [description]
+    """
+    return {'hello': 'world'}
+
+
+@router.post("/paddlespeech/asr", response_model=ASRResponse)
+def asr(request_body: ASRRequest):
+    """asr api 
+
+    Args:
+        request_body (ASRRequest): [description]
+
+    Returns:
+        json: [description]
+    """
+    # single 
+    asr_engine = ASREngine()
+
+    asr_engine.init()
+    asr_results = asr_engine.run()
+    asr_engine.postprocess()
+
+    json_body = {
+                    "success": True,
+                    "code": 0,
+                    "message": {
+                        "description": "success" 
+                    },
+                    "result": {
+                        "transcription": asr_results
+                    }
+                }
+
+    return json_body
diff --git a/speechserving/speechserving/restful/request.py b/speechserving/speechserving/restful/request.py
index f1fa4bcb..32f157d3 100644
--- a/speechserving/speechserving/restful/request.py
+++ b/speechserving/speechserving/restful/request.py
@@ -29,8 +29,8 @@ class ASRRequest(BaseModel):
         "audio": "exSI6ICJlbiIsCgkgICAgInBvc2l0aW9uIjogImZhbHNlIgoJf...",
         "audio_format": "wav",
         "sample_rate": 16000,
-        "lang ": "zh_cn",
-        "ptt ":false
+        "lang": "zh_cn",
+        "ptt":false
     }
     """
     audio: str
diff --git a/speechserving/speechserving/controller/api.py b/speechserving/speechserving/restful/tts_api.py
similarity index 58%
rename from speechserving/speechserving/controller/api.py
rename to speechserving/speechserving/restful/tts_api.py
index 188dba30..05121718 100644
--- a/speechserving/speechserving/controller/api.py
+++ b/speechserving/speechserving/restful/tts_api.py
@@ -13,38 +13,17 @@
 # limitations under the License.
 from fastapi import APIRouter
 
-router = APIRouter()
-
-
-router.include_router(auth_router)
-router.include_router(user_router)
-router.include_router(profile_router)
-router.include_router(comment_router)
-router.include_router(article_router)
-router.include_router(tag_router)
-
-
-
-
-def init_app(app):
-    
-    asr,tts
-
 
+router = APIRouter()
 
-    
-    
-    if asr
-        backend
-            dyload(asr)
 
-        asr.register_router(router)
-    if tts
-        backend
-            dyload(asr)
+@router.get('/paddlespeech/tts/help')
+def help():
+    """help
 
+    Returns:
+        json: [description]
+    """
+    return {'hello': 'world'}
 
-        asr.register_router(router)
 
-    app.include_router(router)
-    
diff --git a/speechserving/speechserving/utils/__init__.py b/speechserving/speechserving/utils/__init__.py
new file mode 100644
index 00000000..e69de29b
diff --git a/speechserving/speechserving/utils/errors.py b/speechserving/speechserving/utils/errors.py
new file mode 100644
index 00000000..e69de29b
diff --git a/speechserving/speechserving/utils/log.py b/speechserving/speechserving/utils/log.py
new file mode 100644
index 00000000..8644064c
--- /dev/null
+++ b/speechserving/speechserving/utils/log.py
@@ -0,0 +1,59 @@
+# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+import functools
+import logging
+
+__all__ = [
+    'logger',
+]
+
+
+class Logger(object):
+    def __init__(self, name: str=None):
+        name = 'PaddleSpeech' if not name else name
+        self.logger = logging.getLogger(name)
+
+        log_config = {
+            'DEBUG': 10,
+            'INFO': 20,
+            'TRAIN': 21,
+            'EVAL': 22,
+            'WARNING': 30,
+            'ERROR': 40,
+            'CRITICAL': 50,
+            'EXCEPTION': 100,
+        }
+        for key, level in log_config.items():
+            logging.addLevelName(level, key)
+            if key == 'EXCEPTION':
+                self.__dict__[key.lower()] = self.logger.exception
+            else:
+                self.__dict__[key.lower()] = functools.partial(self.__call__,
+                                                               level)
+
+        self.format = logging.Formatter(
+            fmt='[%(asctime)-15s] [%(levelname)8s] - %(message)s')
+
+        self.handler = logging.StreamHandler()
+        self.handler.setFormatter(self.format)
+
+        self.logger.addHandler(self.handler)
+        self.logger.setLevel(logging.DEBUG)
+        self.logger.propagate = False
+
+    def __call__(self, log_level: str, msg: str):
+        self.logger.log(log_level, msg)
+
+
+logger = Logger()
diff --git a/speechserving/tests/http_client.py b/speechserving/tests/http_client.py
new file mode 100644
index 00000000..3787d764
--- /dev/null
+++ b/speechserving/tests/http_client.py
@@ -0,0 +1,66 @@
+# Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the 
+import requests
+import json
+import time
+import base64
+
+import argparse
+
+def readwav2base64(wav_file):
+    """
+    read wave file and covert to base64 string
+    """
+    with open(wav_file, 'rb') as f:
+        base64_bytes = base64.b64encode(f.read())
+        base64_string = base64_bytes.decode('utf-8')
+    return base64_string
+
+
+def main(args):
+    """
+    main func
+    """
+    url = "http://127.0.0.1:8090/paddlespeech/asr"
+
+    # start Timestamp
+    time_start=time.time()
+
+    # test_audio_dir = "test_data/16_audio.wav"
+    # audio = readwav2base64(test_audio_dir)
+
+    data = {
+            "audio": "exSI6ICJlbiIsCgkgICAgInBvc2l0aW9uIjogImZhbHNlIgoJf",
+            "audio_format": "wav",
+            "sample_rate": 16000,
+            "lang": "zh_cn",
+            }
+
+    r = requests.post(url=url, data=json.dumps(data))
+
+    # ending Timestamp
+    time_end=time.time()
+    print('time cost',time_end - time_start, 's')
+
+    print(r.json())
+
+
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--model_type", action="store",
+                        help="model type: u2, dp2", default="dp2")
+    args = parser.parse_args()
+
+    main(args)