API Gateway with yt-dlp

Introduction

I’ll be developing an API for retrieving information about a YouTube Channel or a YouTube Video.

You’ll want to have and be familiar with the below technologies:

• AWS
• Python

And here’s the software we’ll be using:

• AWS
• API Gateway
• DynamoDB
• Lambda
• GitHub Copilot
• Python Packages
  • aws-sam-cli
  • Flask
  • yt-dlp

Diagram

Environment Setup

• python3 –m venv env
• pip install aws-sam-cli yt-dlp
• Get AWS credentials

Basic Usage of yt-dlp with Flask

1. What information does the library retrieve?
2. What fields do we want?

Create Initial Infrastructure

• sam init
• sam deploy

Code Local Version for Flask

• Support query parameters
  • channel_id
  • video_id

Add DynamoDB

• Create resource
• Update permissions

Use Database

• Support below actions
  • scan
  • put_item
  • get_item

Convert to AWS API Gateway

• Create resource
• Migrate code to lambda_handler

Basic Security for AWS API Gateway

• Restrict by IP address
• Restrict by header

Future Enhancements

• Create a Frontend (htmx, NextJS, Astro)
• Setup Authentication
  • AWS Cognito
  • Clerk
  • Supabase