Rate Limiter using Node.js & REDIS

Intro

This Rate Limiter application is a part of the Episode - 1 of SharedX organised on Saturday, March 23, 2019 in Noida

This application is using the Node-API-Template. You can read about the codebase structure there.

How to RUN

• git clone git@github.com:shredx/node-redis-rate-limiter.git
• npm install
• npm run dev

Note: Make sure REDIS is running

Gotchas

• Don't forget to create a .env file

Concept

• Create and store users in REDIS
• Provide Subscription Keys to the users
  • A user cannot have more than 3 keys
• Each key has usage limit aggisned to it
• Based on the usage the user is blocked from accessing the routes/features

Components

• REDIS
• Node.js API Service which publishes usages to the REDIS pub-sub
• Golang API Service that manages the usages and broadcast the BLOCK event
• Node.js API Gateway which blocks the users
  • This service maintains a local cache

Todos

• Add link to different services
• Add list of contributors
• Dcoumentation for the application