Serverless Python Flask API template: AWS Lambda + API Gateway

Building a serverless app frees you from infrastructure management, but it is still hard to set up correctly and it can take many frustrating hours and even days to get it right. I have created this template so that you don't have to suffer like I did.

This is a complete git repository that you can clone or download and customize to your heart's content.

Content

• Cloudformation (AWS SAM) template to create the AWS Lambda and API Gateway HTTP API services in your AWS account built using AWS SAM

• All the IAM roles and policies required to secure and allow continuous deployment from Gitlab

• Gitlab CI yaml to run a build, test and deployment on each commit to the master branch. This deploys the infrastructure as well as the code to the lambda environment.

• Python project setup that uses poetry for dependency management

• Makefile with targets to run common tasks easily.

• Step by step guidance on how to get started and get your app deployed in minutes.

  • Setting up your AWS account

  • Setting up Gitlab CI/CD configuration and environment variables

• BONUS content: How to set up a domain and DNS records for your API in AWS Route53

• BONUS content: How to set up your local development environment to debug your application during development in VS Code