GraphQL API for a realtime group chat application.
Features
Authentication (register, login, logout, logout from all devices)
Group CRUD
Join group via an invite token (JWT) that expires after 10 minutes
Leave group
Message CRUD
Group permission based on role (admin, normal member)
Realtime update to new message added via GraphQL subscription
Tech stack
Node.js
Nest.js
TypeScript
GraphQL
PostgreSQL
Redis
2022