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TypeScript SDK v4 ​

Info: Upgrading from v3? Check out the migration guide.

Introduction ​

Inngest is an event-driven durable execution platform that lets you write reliable background jobs, scheduled tasks, and multi-step workflows in TypeScript without any additional infrastructure. Simply define functions as code; Inngest handles retries, concurrency, rate limiting, and observability.

The TypeScript SDK v4 delivers a major upgrade to speed and developer experience:

  • Rewritten middleware — Hooks are more intuitive, less overloaded, and enable new use cases.
  • Better schemas — Runtime event data validation with Standard Schema support (not just Zod!).
  • Faster by default — Parallel step optimization and checkpointing are both enabled by default, leading to fewer requests and lower latency.
  • Improved logging — Structured logging (Pino-style) and cleaner separation of internal vs. app logs.
  • Cleaner API — Triggers in the options object, lazy init for edge runtimes, and more compile-time safety.

Installing ​

shell
npm install inngest
shell
pnpm add inngest
shell
yarn add inngest

Build with v4 ​

Start with the client setup and function creation references, then use the v4 feature docs that match your application:

Source code ​

Our TypeScript SDK and its related packages are open source and available on Github: inngest/inngest-js.

Official libraries ​

  • inngest - the Inngest SDK
  • @inngest/eslint-plugin - specific ESLint rules for Inngest
  • @inngest/middleware-encryption - middleware providing E2E encryption

Examples ​

Frameworks ​

  • Astro
  • Bun.serve()
  • Fastify
  • Koa
  • NestJS
  • Next.js (app router)
  • Next.js (pages router)
  • Nuxt
  • Remix
  • SvelteKit

Middleware ​

  • E2E Encryption

Community libraries ​

Explore our collection of community-created libraries, offering unofficial but valuable extensions and integrations to enhance Inngest's functionality with various frameworks and systems.

Want to be added to the list? Contact us!

  • nest-inngest - strongly typed Inngest module for NestJS projects
  • nuxt-inngest - Inngest integration for Nuxt