add postgres

konviva-events/app/boto3clients.py

@@ -1,13 +1,19 @@
 import os
+from typing import TYPE_CHECKING
 
 import boto3
 
+if TYPE_CHECKING:
+    from mypy_boto3_dynamodb.client import DynamoDBClient
+else:
+    DynamoDBClient = object
 
-def get_dynamodb_client():
+
+def get_dynamodb_client() -> DynamoDBClient:
     if os.getenv('AWS_LAMBDA_FUNCTION_NAME'):
         return boto3.client('dynamodb')
 
     return boto3.client('dynamodb', endpoint_url='http://127.0.0.1:8000')
 
 
-dynamodb_client = get_dynamodb_client()
+dynamodb_client: DynamoDBClient = get_dynamodb_client()