boto3 lambda hello world

hello_lambda.py

import tempfile
import zipfile
from pathlib import Path
from pprint import pprint

import boto3


def hello_lambda(
    role,
    function_name="hello-world",
    region="us-east-1",
    runtime="python3.7",
    # the destination path to your module within the zip archive
    path="hello_world.py",
    # the path to the hello world module on your local machine
    path_to_module="hello_world.py",
    # assume module hello_world.py has a `main` function
    handler="hello_world.main",
):

    client = boto3.client("lambda", region_name=region)

    with tempfile.NamedTemporaryFile() as fp:

        zip_file = Path(fp.name)

        with zipfile.ZipFile(fp, "w") as zf:

            zf.write(path_to_module, arcname=path)

        create_function_response = client.create_function(
            FunctionName=function_name,
            Runtime=runtime,
            Role=role,
            Handler=handler,
            Code={"ZipFile": zip_file.read_bytes()},
        )

    invoke_function_response = client.invoke(
        FunctionName=create_function_response["FunctionArn"], LogType="Tail"
    )

    pprint(invoke_function_response)

hello_world.py

def main(*args, **kwargs):
    print("hello, world")