* 겪고 있는 문제 상황을 최대한 자세하게 작성해주세요.

* 문제 해결을 위해 어떤 시도를 해보았는지 구체적으로 함께 알려주세요.

서버와 클라이언트 만들고 잘 기록되는지 확인하는 단계에서 POST 쪽에서 오류가 발생합니다 ㅠㅠ

어떤 오류인지, 어떻게 해결할 수 있는지 확인 부탁드립니다..!!

작성한 코드 및 에러 메세지

127.0.0.1 - - [17/May/2023 16:08:41] "GET / HTTP/1.1" 200 -

127.0.0.1 - - [17/May/2023 16:08:41] "GET /bucket HTTP/1.1" 200 -

/Users/seoyeoness/Downloads/04.bucket/venv/bin/python /Users/seoyeoness/Downloads/04.bucket/app.py

127.0.0.1 - - [17/May/2023 16:09:21] "POST /bucket HTTP/1.1" 500 -

Traceback (most recent call last):

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/flask/app.py", line 2213, in __call__

    return self.wsgi_app(environ, start_response)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/flask/app.py", line 2193, in wsgi_app

    response = self.handle_exception(e)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/flask/app.py", line 2190, in wsgi_app

    response = self.full_dispatch_request()

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/flask/app.py", line 1486, in full_dispatch_request

    rv = self.handle_user_exception(e)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/flask/app.py", line 1484, in full_dispatch_request

    rv = self.dispatch_request()

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/flask/app.py", line 1469, in dispatch_request

    return self.ensure_sync(self.view_functions[rule.endpoint])(**view_args)

  File "/Users/seoyeoness/Downloads/04.bucket/app.py", line 18, in bucket_post

    db.bucket.insert_one(doc)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/collection.py", line 628, in insert_one

    self._insert_one(

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/collection.py", line 569, in _insert_one

    self.__database.client._retryable_write(acknowledged, _insert_command, session)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1475, in _retryable_write

    with self._tmp_session(session) as s:

  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/contextlib.py", line 113, in __enter__

    return next(self.gen)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1757, in _tmp_session

    s = self._ensure_session(session)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1740, in _ensure_session

    return self.__start_session(True, causal_consistency=False)

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/mongo_client.py", line 1685, in __start_session

    self._topology._check_implicit_session_support()

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/topology.py", line 538, in _check_implicit_session_support

    self._check_session_support()

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/topology.py", line 554, in _check_session_support

    self._select_servers_loop(

  File "/Users/seoyeoness/Downloads/04.bucket/venv/lib/python3.8/site-packages/pymongo/topology.py", line 238, in _select_servers_loop

    raise ServerSelectionTimeoutError(

pymongo.errors.ServerSelectionTimeoutError: ac-o3dayr5-shard-00-00.cwkdvsj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108),ac-o3dayr5-shard-00-01.cwkdvsj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108),ac-o3dayr5-shard-00-02.cwkdvsj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108), Timeout: 30s, Topology Description: <TopologyDescription id: 64647d76579ca438c6a54579, topology_type: ReplicaSetNoPrimary, servers: [<ServerDescription ('ac-o3dayr5-shard-00-00.cwkdvsj.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-o3dayr5-shard-00-00.cwkdvsj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)')>, <ServerDescription ('ac-o3dayr5-shard-00-01.cwkdvsj.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-o3dayr5-shard-00-01.cwkdvsj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)')>, <ServerDescription ('ac-o3dayr5-shard-00-02.cwkdvsj.mongodb.net', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('ac-o3dayr5-shard-00-02.cwkdvsj.mongodb.net:27017: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1108)')>]>