Telegram-Bot-Lambda Code

Features

poetry for dependency management & virtual envrionments
uses poetry to execute python files

Prerequisites

python ^3.12
poetry ^1.7.1

Commands

poetry shell to activate the virtual environment
poetry install to install dependencies
poetry run build to create a virtual environment, install packages and output them to the dist/lambda folder
poetry run cert to download the CA certificate from the AWS endpoint and save it to the dist/lambda folder
poetry run zip to create the dist/lambda.zip from dist/lambda folder
poetry run dist to run all of the above steps

Development

All code in src/ will be compiled to dist/ and then bundled to dist/lambda/lambda.py along with site packages from the generated .venv /**/site-packages/** virutal environment when running poetry run build or poetry run dist.

The dist/lambda.zip created by running poetry run zip or poetry run dist, is what will be used to deploy as a lambda function.

src/lambda.py is the entrypoint for the lambda function and the handler function will the main entry function that is called when the Lambda function is invoked.

While developing for lambda functions, it's CRITICAL to retain the same signature for the handler function (ie lambda.handler), as it's the entrypoint for the lambda function.

You can tell the Lambda runtime which handler method to invoke by setting the handler parameter on your function's configuration.

When you configure a function in Python, the value of the handler setting is the file name and the name of the handler module, separated by a dot. For example, main.Handler calls the Handler method defined in main.py.

See also Lambda function handler in Python

Deployment