ExpressJS Async Errors - NPM package to enable Express framework to handle asychronous errors.
Express Validator - Validate or sanitize API requests received by an Express application.
Helm - Package manager to find, share and use software built for Kubernetes.
Istio - Platform independent service mesh that comes handy in microservice development.
Mongoose - NPM package to communicate with MongoDB.
Postman - Software to test APIs.
Supertest - NPM package used for testing purpose to send fake requests to APIs.