[BACKEND] Fastify + Typescript + Mongoose

[abhilashmadi]

Fastify + Mongoose + TypeScript – RealWorld Backend Implementation

I'm building a backend for the RealWorld spec using Fastify, Mongoose, and TypeScript.

Repo: [https://github.com/AbhilashMadi/realworld-Fastify-Typescript-Mongoose)

Goals

• Fast, type-safe API fully aligned with the RealWorld spec
• Modular structure with clear separation (routes, controllers, models)
• Strict TypeScript types, proper error handling, JWT auth

Questions

• Preferred validation approach in Fastify? (Zod vs TypeBox vs native)
• Best structure for organizing Mongoose models + services?
• Tips on efficient testing setup (unit + integration) for Fastify?

Open to feedback, improvements, or collab. Let’s refine this together 🤝