𝗧𝗿𝗣𝗖 𝗶𝗻 𝗧𝘆𝗽𝗲𝗦cript: 𝗦𝗶𝗺𝗽𝗹𝗶𝗳𝘆 𝗔𝗣𝗜 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁

Building an API usually means picking between REST or GraphQL. You spend time setting up routes, managing schemas, and syncing types between your frontend and backend. If you use TypeScript on both ends, this process feels heavy. You end up writing the same types twice.

tRPC changes this workflow. It removes the need for a separate API contract. Instead, it uses TypeScript to share types automatically between your server and client.

Why use tRPC?

  • No manual type syncing: You write a function on the server and the client knows the input and output types immediately.
  • No code generation: You do not need to run extra tools to create types.
  • No schema drift: Since the client uses the server types directly, your frontend stays in sync with your backend.
  • Faster development: It feels like calling a function in a local file rather than making a network request.

Traditional methods have trade-offs. REST requires manual fetch calls and duplicated types. GraphQL provides a schema but adds complexity with resolvers and codegen.

tRPC treats your backend as a collection of type-safe functions. You define procedures in routers. The client imports your router type and calls these procedures directly.

Example flow:

  1. Define a procedure on the server with validation (like Zod).
  2. Export the router type.
  3. Call that procedure on the client with full autocompletion and type safety.

When to use tRPC:

  • Your frontend and backend both use TypeScript.
  • You control both sides of the stack.
  • You are building internal tools, admin dashboards, or full-stack Next.js apps.
  • You work in a monorepo.

When to avoid tRPC:

  • You are building a public API for many different users.
  • Your clients use different languages like Python or Go.
  • You need complex API versioning.

tRPC is not a replacement for REST or GraphQL in every scenario. It is a tool for speed and safety when your stack is unified. It removes the friction of API boundaries and lets you focus on writing logic.

Source: https://dev.to/geekyants/trpc-in-typescript-simplify-api-development-without-boilerplate-3lm3