bug fix

app/main.py

@@ -206,6 +206,15 @@ def init_vertex_ai():
                 
                 # Create credentials from the parsed JSON
                 try:
+                    # Explicitly replace literal "\\n" with actual newline in private_key
+                    if "private_key" in credentials_info and isinstance(credentials_info["private_key"], str):
+                        original_pk = credentials_info["private_key"]
+                        credentials_info["private_key"] = original_pk.replace("\\n", "\n")
+                        if original_pk != credentials_info["private_key"]:
+                             print("Replaced literal '\\n' with newline characters in private_key.")
+                        else:
+                             print("No literal '\\n' found in private_key, using as is.")
+
                     credentials = service_account.Credentials.from_service_account_info(
                         credentials_info,
                         scopes=['https://www.googleapis.com/auth/cloud-platform']
@@ -213,7 +222,10 @@ def init_vertex_ai():
                     project_id = credentials.project_id
                     print(f"Successfully created credentials object for project: {project_id}")
                 except Exception as cred_err:
-                    print(f"ERROR: Failed to create credentials from parsed JSON: {cred_err}")
+                    print(f"ERROR: Failed to create credentials from parsed JSON (after potential newline replacement): {cred_err}")
+                    # Print the type of the private key for debugging
+                    pk_type = type(credentials_info.get("private_key")).__name__ if "private_key" in credentials_info else "Not Found"
+                    print(f"Private key type: {pk_type}")
                     raise
                 
                 # Initialize the client with the credentials