{"id":3012,"library":"mypy-boto3-apigatewaymanagementapi","title":"mypy-boto3-apigatewaymanagementapi Type Stubs","description":"mypy-boto3-apigatewaymanagementapi provides type annotations for the `boto3` ApiGatewayManagementApi client. It helps developers write type-safe Python code when interacting with AWS API Gateway Management services, catching potential errors at development time rather than runtime. This library is currently at version 1.42.3 and is actively maintained with frequent releases tied to `boto3` updates.","status":"active","version":"1.42.3","language":"en","source_language":"en","source_url":"https://github.com/youtype/mypy_boto3_builder","tags":["aws","boto3","mypy","type-hints","stubs","apigateway","serverless"],"install":[{"cmd":"pip install mypy-boto3-apigatewaymanagementapi","lang":"bash","label":"Install specific service stub"},{"cmd":"pip install mypy-boto3","lang":"bash","label":"Install all boto3 stubs (larger)"}],"dependencies":[{"reason":"Provides runtime functionality; stubs are for type checking its API.","package":"boto3","optional":false}],"imports":[{"note":"The specific client type is provided by the `mypy-boto3-*` stub packages, not directly from `boto3`.","wrong":"from boto3.client import ApiGatewayManagementApiClient","symbol":"ApiGatewayManagementApiClient","correct":"from mypy_boto3_apigatewaymanagementapi.client import ApiGatewayManagementApiClient"}],"quickstart":{"code":"import os\nimport boto3\nfrom mypy_boto3_apigatewaymanagementapi.client import ApiGatewayManagementApiClient\n\n# Initialize a boto3 client with type hints\n# For local testing, ensure AWS_REGION, AWS_ACCESS_KEY_ID, AWS_SECRET_ACCESS_KEY are set.\n# ApiGatewayManagementApi typically requires an endpoint_url.\nclient: ApiGatewayManagementApiClient = boto3.client(\n    \"apigatewaymanagementapi\",\n    region_name=os.environ.get(\"AWS_REGION\", \"us-east-1\"),\n    endpoint_url=os.environ.get(\"APIGATEWAY_MGMT_ENDPOINT_URL\", \"https://example.execute-api.us-east-1.amazonaws.com/prod\")\n)\n\n# Example: Post data to a connection\ntry:\n    connection_id = \"some-connection-id\"  # Replace with an actual connection ID\n    data_to_send = b\"Hello from mypy-boto3!\"\n\n    response = client.post_to_connection(\n        ConnectionId=connection_id,\n        Data=data_to_send\n    )\n    print(f\"Successfully posted to connection {connection_id}. Response: {response}\")\nexcept client.exceptions.GoneException:\n    print(f\"Connection {connection_id} is gone.\")\nexcept Exception as e:\n    print(f\"An error occurred: {e}\")\n\n# Mypy will now validate client method calls and argument types:\n# client.non_existent_method() # Mypy would flag this as an error","lang":"python","description":"This quickstart demonstrates how to initialize an `ApiGatewayManagementApiClient` with type hints and make a sample call to `post_to_connection`. It highlights that `mypy-boto3` stubs provide compile-time type checking without altering `boto3`'s runtime behavior. Remember to provide a valid `endpoint_url` for `ApiGatewayManagementApi`."},"warnings":[{"fix":"Upgrade your project's Python interpreter to 3.9 or newer.","message":"As of `mypy-boto3-builder` version 8.12.0, all generated `mypy-boto3` packages (including `mypy-boto3-apigatewaymanagementapi`) officially removed support for Python 3.8. Projects now require Python >= 3.9.","severity":"breaking","affected_versions":">=8.12.0 of mypy-boto3-builder (and generated packages)"},{"fix":"Ensure `boto3` is installed alongside `mypy-boto3-apigatewaymanagementapi`. The stubs enhance developer experience, but `boto3` remains the runtime dependency.","message":"These stubs provide static type checking only; they do not alter `boto3`'s runtime behavior. You still need to install and use `boto3` as usual for your application to function.","severity":"gotcha","affected_versions":"All versions"},{"fix":"Always provide the correct `endpoint_url` when initializing the `ApiGatewayManagementApiClient` for your environment, especially in production or when testing against deployed APIs.","message":"The `ApiGatewayManagementApi` client typically requires an `endpoint_url` parameter to specify the API Gateway's invocation URL (e.g., `https://{api_id}.execute-api.{region}.amazonaws.com/{stage}`). This is crucial for correctly routing requests to your specific API Gateway instance.","severity":"gotcha","affected_versions":"All versions"},{"fix":"Install `mypy` (e.g., `pip install mypy`) and integrate it into your CI/CD pipeline or local development workflow.","message":"To fully benefit from these type stubs, ensure `mypy` is installed in your development environment and configured to check your project. Run `mypy your_project_path` to enable type checking.","severity":"gotcha","affected_versions":"All versions"}],"env_vars":null,"last_verified":"2026-04-11T00:00:00.000Z","next_check":"2026-07-10T00:00:00.000Z"}