AWS CDK Python Demo: Lambda Function in a Microservice Architecture

This repository demonstrates how to set up, deploy, and observe an AWS Lambda function in a microservice architecture using AWS CDK with Python.

The repository article can be found here.

• Step 1: Setting Up and Structuring the AWS Lambda Project
• Step 2: Building and Deploying a Python Lambda Function Using Lambda Layers
• Step 3: Input Data Validation
• Step 4: Setting up Monitoring and Alarms

Table of Contents

• Prerequisites
• Installation
• Project Structure
• Testing
• Deployment

Prerequisites

• Python 3.12+
• AWS CLI configured with appropriate permissions
• Node.js and npm (for AWS CDK)
• Poetry for Python dependency management

Installation

1. Clone the repository:

git clone https://github.com/myarik/aws-cdk-python-demo.git 
cd aws-cdk-python-demo

2. Install the dependencies:

make dev

Project Structure

aws-cdk-python-demo/
├── app.py                  # CDK app entry point
├── infrastructure/         # CDK stack definitions
├── service/                # Lambda function code
├── tests/                  # Test files
├── Makefile                # Utility commands
├── README.md
└── pyproject.toml          # Python project configuration

Testing

Run tests using:

make test

Deployment

Deploy the stack:

make deploy

To destroy the stack:

make destroy