types-boto3-lambda

import boto3 import os from typing import TYPE_CHECKING if TYPE_CHECKING: from mypy_boto3_lambda.client import LambdaClient from mypy_boto3_lambda.type_defs import InvokeFunctionResponseTypeDef def get_lambda_client() -> "LambdaClient": """Returns a typed Lambda client.""" return boto3.client("lambda") def invoke_my_lambda(client: "LambdaClient", function_name: str, payload: dict) -> "InvokeFunctionResponseTypeDef": """Invokes a Lambda function with type hints.""" response = client.invoke( FunctionName=function_name, InvocationType='RequestResponse', Payload=bytes(str(payload).encode('utf-8')) ) return response # Example Usage if __name__ == "__main__": lambda_client = get_lambda_client() # Use os.environ.get for dynamic configuration in runnable examples function_name = os.environ.get('LAMBDA_FUNCTION_NAME', 'my-test-lambda-function') example_payload = {"greeting": "hello from types-boto3-lambda"} try: print(f"Invoking Lambda function: {function_name}") response = invoke_my_lambda(lambda_client, function_name, example_payload) print(f"Lambda Invocation Status Code: {response.get('StatusCode')}") # If the Lambda returns a JSON payload, you might want to read and decode it # payload_stream = response.get('Payload') # if payload_stream: # payload_data = payload_stream.read().decode('utf-8') # print(f"Lambda Response Payload: {payload_data}") except Exception as e: print(f"Error invoking Lambda: {e}")