django.db.utils.OperationalError: connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" when fetching data from database

[Art/Paul]

django.db.utils.OperationalError: connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" when fetching data from database

This happens when trying to fetch through channels after deployment to the AWS Linux-2 server. Please go through till the end

I am performing Authentication through JWT so I have the below piece of code:

# source: https://github.com/joshua-hashimoto/django-channels-jwt-auth-middleware
class JWTAuthMiddleware:
    def __init__(self, app):
        self.app = app

    async def __call__(self, scope, receive, send):
        close_old_connections()
        try:
            if(jwt_token_list := parse_qs(scope["query_string"].decode("utf8")).get('token', None)):
                jwt_token = jwt_token_list[0]
                jwt_payload = self.get_payload(jwt_token)
                user_credentials = self.get_user_credentials(jwt_payload)
                user = await self.get_logged_in_user(user_credentials)
                scope['user'] = user
                print("FINAL USER: ", user)
            else:
                scope['user'] = AnonymousUser()

        except (InvalidSignatureError, KeyError, ExpiredSignatureError, DecodeError) as e:
            print("Error: ", e)

        return await self.app(scope, receive, send)

    def get_payload(self, jwt_token):
        payload = jwt_decode(
            jwt_token, settings.SECRET_KEY, algorithms=["HS256"])

        return payload

    def get_user_credentials(self, payload):
        user_id = payload['user_id']
        return user_id

    async def get_logged_in_user(self, user_id):
        user = await self.get_user(user_id)
        print("RETURNED USER: ", user)
        return user

    @database_sync_to_async
    def get_user(self, user_id):
   
        try:
            return User.objects.get(id=user_id) # This is primary key for user model
        except User.DoesNotExist:
            return AnonymousUser()

def JWTAuthMiddlewareStack(app):
    return JWTAuthMiddleware(AuthMiddlewareStack(app))

I am able to get the model and everything seems to work fine until it reaches the below code in get_user method which is decorated with database_sync_to_async:

User.objects.get(id=user_id) # This is primary key for user model

which then throws the below error:

Traceback (most recent call last):
  File "/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/django/db/backends/base/base.py", line 219, in ensure_connection
    self.connect()
  File "/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/django/utils/asyncio.py", line 33, in inner
    return func(*args, **kwargs)
  File "/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/django/db/backends/base/base.py", line 200, in connect
    self.connection = self.get_new_connection(conn_params)
  File "/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/django/utils/asyncio.py", line 33, in inner
    return func(*args, **kwargs)
  File "/var/app/venv/staging-LQM1lest/lib/python3.8/site-packages/django/db/backends/postgresql/base.py", line 187, in get_new_connection
    connection = Database.connect(**conn_params)
  File "/var/app/venv/staging-LQM1lest/lib64/python3.8/site-packages/psycopg2/__init__.py", line 122, in connect
    conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
psycopg2.OperationalError: connection to server on socket "/var/run/postgresql/.s.PGSQL.5432" failed: No such file or directory
        Is the server running locally and accepting connections on that socket?

I am sure it is not a problem with my configuration because the data is being queried without any error and displayed to the front-end. This happens when trying to use async in channels. Any idea why?

[Art/Paul]

Sorry This was my bad. My environment variables was not being loaded in AWS