lof 0.2.0a0

AWS Lambdas on FastAPI it is a Cli utilit that up & run your lambdas in local env based on AWS Code Deploy Config

AWS Lambdas on FastAPI - LoF

AWS Lambdas on FastAPI (LoF) is a command line tool that helps you fast & easy up & run your AWS Lambdas for tests and local development.

Context

On my current project I works a lot with AWS Lambdas & tries to up & run them with SAM local. And there is some issues especially when you work on the project with a big count of lambdas.

Some of them:

1. First of all it does not allow skip some lambdas form config

2. It build lambdas inside each docker container so it takes significant time to build/rebuild & up all containers (and you need up all containers if you want to have fast integration tests)

Both points in the mix make impossible to use SAM in weak developers envs like VDI, for example.

How does it work?

Install

pip install lof

Now run lof & provide to it path to your template yaml file. Or you can run it from source dir with template.yaml without any args

lof

# or if path custom

lof --template example/template.yaml

You can choose that lambdas exclude from run by passing their names:

lof --template example/template.yaml --exclude=PostLambda2Function

To pass environment variables to Lambdas, use flag –env, you can pass variables in 2 formats - json format and ‘.env’ format. Both files as examples presented in example/ folder

lof --env=.env

# or

lof --env=vars.json

This mean, that lof will up & run all lambdas exclude this 2: PostTrafficHook & Roles

Example

To try how LoF works you can use AWS Code Deploy template.yaml & Lambdas from example folder.

Issues & features request

Fill free to open Issues & report bugs. I will solve them as soon as possible.

Changelog

v0.2.0

1. Fixed status_code resend from lambda & JSON body response

v0.1.0

1. First version of Lambdas on FastApi. Based on CodeDeploy template it’s serve lambdas as FastAPI endpoints for local testing.