[Feat] Add Error Handling for /key/list endpoint (#5787)

* raise error from unsupported param

* add testing for key list endpoint

* add testing for key list error handling

* fix key list test

litellm/proxy/management_endpoints/key_management_endpoints.py

@@ -1134,6 +1134,7 @@ async def regenerate_key_fn(
 )
 @management_endpoint_wrapper
 async def list_keys(
+    request: Request,
     user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
     page: int = Query(1, description="Page number", ge=1),
     size: int = Query(10, description="Page size", ge=1, le=100),
@@ -1152,13 +1153,24 @@ async def list_keys(
             logging.error("Database not connected")
             raise Exception("Database not connected")
 
+        # Check for unsupported parameters
+        supported_params = {"page", "size", "user_id", "team_id", "key_alias"}
+        unsupported_params = set(request.query_params.keys()) - supported_params
+        if unsupported_params:
+            raise ProxyException(
+                message=f"Unsupported parameter(s): {', '.join(unsupported_params)}. Supported parameters: {', '.join(supported_params)}",
+                type=ProxyErrorTypes.bad_request_error,
+                param=", ".join(unsupported_params),
+                code=status.HTTP_400_BAD_REQUEST,
+            )
+
         # Prepare filter conditions
         where = {}
-        if user_id:
+        if user_id and isinstance(user_id, str):
             where["user_id"] = user_id
-        if team_id:
+        if team_id and isinstance(team_id, str):
             where["team_id"] = team_id
-        if key_alias:
+        if key_alias and isinstance(key_alias, str):
             where["key_alias"] = key_alias
 
         logging.debug(f"Filter conditions: {where}")
@@ -1206,9 +1218,18 @@ async def list_keys(
         return response
 
     except Exception as e:
+        if isinstance(e, HTTPException):
+            raise ProxyException(
+                message=getattr(e, "detail", f"error({str(e)})"),
+                type=ProxyErrorTypes.internal_server_error,
+                param=getattr(e, "param", "None"),
+                code=getattr(e, "status_code", status.HTTP_500_INTERNAL_SERVER_ERROR),
+            )
+        elif isinstance(e, ProxyException):
+            raise e
         raise ProxyException(
-            message=f"Error listing keys: {str(e)}",
-            type=ProxyErrorTypes.internal_server_error,  # Use the enum value
-            param=None,
+            message="Authentication Error, " + str(e),
+            type=ProxyErrorTypes.internal_server_error,
+            param=getattr(e, "param", "None"),
             code=status.HTTP_500_INTERNAL_SERVER_ERROR,
         )

litellm/tests/test_key_generate_prisma.py

@@ -56,6 +56,7 @@ from litellm.proxy.management_endpoints.key_management_endpoints import (
     generate_key_fn,
     generate_key_helper_fn,
     info_key_fn,
+    list_keys,
     regenerate_key_fn,
     update_key_fn,
 )
@@ -3123,3 +3124,100 @@ async def test_admin_only_routes(prisma_client):
         pass
 
     setattr(proxy_server, "general_settings", initial_general_settings)
+
+
+@pytest.mark.asyncio
+async def test_list_keys(prisma_client):
+    """
+    Test the list_keys function:
+    - Test basic key
+    - Test pagination
+    - Test filtering by user_id, and key_alias
+    """
+    from fastapi import Query
+
+    from litellm.proxy.proxy_server import hash_token
+
+    setattr(litellm.proxy.proxy_server, "prisma_client", prisma_client)
+    setattr(litellm.proxy.proxy_server, "master_key", "sk-1234")
+    await litellm.proxy.proxy_server.prisma_client.connect()
+
+    # Test basic listing
+    request = Request(scope={"type": "http", "query_string": b""})
+    response = await list_keys(
+        request,
+        UserAPIKeyAuth(),
+        page=1,
+        size=10,
+    )
+    print("response=", response)
+    assert "keys" in response
+    assert len(response["keys"]) > 0
+    assert "total_count" in response
+    assert "current_page" in response
+    assert "total_pages" in response
+
+    # Test pagination
+    response = await list_keys(request, UserAPIKeyAuth(), page=1, size=2)
+    print("pagination response=", response)
+    assert len(response["keys"]) == 2
+    assert response["current_page"] == 1
+
+    # Test filtering by user_id
+
+    unique_id = str(uuid.uuid4())
+    team_id = f"key-list-team-{unique_id}"
+    key_alias = f"key-list-alias-{unique_id}"
+    user_id = f"key-list-user-{unique_id}"
+    response = await new_user(
+        data=NewUserRequest(
+            user_id=f"key-list-user-{unique_id}",
+            user_role=LitellmUserRoles.INTERNAL_USER,
+            key_alias=f"key-list-alias-{unique_id}",
+        ),
+        user_api_key_dict=UserAPIKeyAuth(user_role=LitellmUserRoles.PROXY_ADMIN),
+    )
+
+    _key = hash_token(response.key)
+
+    await asyncio.sleep(2)
+
+    # Test filtering by user_id
+    response = await list_keys(
+        request, UserAPIKeyAuth(), user_id=user_id, page=1, size=10
+    )
+    print("filtered user_id response=", response)
+    assert len(response["keys"]) == 1
+    assert _key in response["keys"]
+
+    # Test filtering by key_alias
+    response = await list_keys(
+        request, UserAPIKeyAuth(), key_alias=key_alias, page=1, size=10
+    )
+    assert len(response["keys"]) == 1
+    assert _key in response["keys"]
+
+
+@pytest.mark.asyncio
+async def test_key_list_unsupported_params(prisma_client):
+    """
+    Test the list_keys function:
+    - Test unsupported params
+    """
+
+    from litellm.proxy.proxy_server import hash_token
+
+    setattr(litellm.proxy.proxy_server, "prisma_client", prisma_client)
+    setattr(litellm.proxy.proxy_server, "master_key", "sk-1234")
+    await litellm.proxy.proxy_server.prisma_client.connect()
+
+    request = Request(scope={"type": "http", "query_string": b"alias=foo"})
+
+    try:
+        await list_keys(request, UserAPIKeyAuth(), page=1, size=10)
+        pytest.fail("Expected this call to fail")
+    except Exception as e:
+        print("error str=", str(e.message))
+        error_str = str(e.message)
+        assert "Unsupported parameter" in error_str
+        pass