Mongo Atlas not working

[tip-dteller]

Hi, followed documentation and created the following:

    EMBEDDINGS_PROVIDER: "bedrock"
    VECTOR_DB_TYPE: atlas-mongo
    ATLAS_SEARCH_INDEX: librechat-main
    AWS_DEFAULT_REGION: us-east-1```
I have a correct and reachable mongo atlas using AWS VPC Endpoint (confirmed by deploying a mongosh pod)

i created a vector atlas search using the README file in the docs here.


im getting this error:
``` 2025-02-13 08:55:01,860 - root - INFO - Initialized embeddings of type: <class 'langchain_aws.embeddings.bedrock.BedrockEmbeddings'>
Traceback (most recent call last):
  File "/app/main.py", line 49, in <module>
    from psql import PSQLDatabase, ensure_custom_id_index_on_embedding, pg_health_check
  File "/app/psql.py", line 3, in <module>
    from config import DSN, logger
  File "/app/config.py", line 278, in <module>
    vector_store = get_vector_store(
  File "/app/store_factory.py", line 28, in get_vector_store
    mongo_db = MongoClient(connection_string).get_database()
  File "/usr/local/lib/python3.10/site-packages/pymongo/mongo_client.py", line 2120, in get_database
    raise ConfigurationError("No default database defined")
pymongo.errors.ConfigurationError: No default database defined```