Inngest is the reliability layer for modern applications. It combines durable execution, events, and queues into a zero-infra platform with built-in observability. Inngest enables serverless event-driven queues, background jobs, and scheduled jobs for TypeScript. Works with any framework and platform.

Read the documentation and get started in minutes.

On _any_ serverless platform ([Next.js](https://www.inngest.com/docs/sdk/serve#framework-next-js), [Deno Deploy](https://www.inngest.com/docs/sdk/serve#framework-fresh-deno), [RedwoodJS](https://www.inngest.com/docs/sdk/serve#framework-redwood), [AWS Lambda](https://www.inngest.com/docs/sdk/serve#framework-aws-lambda), and [anything else](https://www.inngest.com/docs/sdk/serve#custom-frameworks)) and with no extra infrastructure: - ⚡ Write background jobs - 🕐 Create scheduled and cron jobs - ♻️ Build serverless queues - 🪜 Write complex step functions - 🚘 Build serverless event-driven systems - 🪝 Reliably respond to webhooks, with retries and payloads stored for history 👋 _Have a question or feature request? [Join our Discord](https://www.inngest.com/discord)!_

Getting started · Features · Contributing · Documentation

## Getting started
Install Inngest: ```bash npm install inngest # or yarn add inngest ``` ### Writing functions Write serverless functions and background jobs right in your own code: ```ts import { Inngest } from "inngest"; const inngest = new Inngest({ id: "my-app" }); // This function will be invoked by Inngest via HTTP any time // the "app/user.signup" event is sent to to Inngest export default inngest.createFunction( { id: "user-onboarding-communication" }, { event: "app/user.signup" }, async ({ event, step }) => { await step.run("Send welcome email", async () => { await sendEmail({ email: event.data.email, template: "welcome", }); }); } ); ``` - Functions are triggered by events which can be sent via this SDK, webhooks, integrations, or with a simple HTTP request. - When a matching event is received, Inngest invokes the function automatically, with built-in retries. ### Serving your functions Inngest invokes functions via HTTP, so you need to _serve_ them using an adapter for the framework of your choice. [See all frameworks here in our docs](https://www.inngest.com/docs/sdk/serve?ref=github-inngest-js-readme). Here is an example using the Next.js serve handler: ```ts // /pages/api/inngest.ts import { Inngest } from "inngest"; // See the "inngest/next" adapter imported here: import { serve } from "inngest/next"; import myFunction from "../userOnboardingCOmmunication"; // see above function // You can create this in a single file and import where it's needed const inngest = new Inngest({ id: "my-app" }); // Securely serve your Inngest functions for remote invocation: export default serve(inngest, [myFunction]); ``` ### Sending events to trigger functions ```ts // Send events import { Inngest } from "inngest"; const inngest = new Inngest({ id: "my-app" }); // This will run the function above automatically, in the background inngest.send("app/user.signup", { data: { email: "text@example.com", user_id: "12345" }, }); ``` - Events can trigger one or more functions automatically, enabling you to fan-out work. - Inngest stores a history of all events for observability, testing, and replay.
## Features - **Fully serverless:** Run background jobs, scheduled functions, and build event-driven systems without any servers, state, or setup - **Works with your framework**: Works with [Next.js, Redwood, Express, Cloudflare Pages, Nuxt, Fresh (Deno), and Remix](https://www.inngest.com/docs/sdk/serve?ref=github-inngest-js-readme) - **Deploy anywhere**: Keep [deploying to your existing platform](https://www.inngest.com/docs/deploy?ref=github-inngest-js-readme): Vercel, Netlify, Cloudflare, Deno, Digital Ocean, etc. - **Use your existing code:** Write functions within your current project and repo - **Fully typed**: Event schemas, versioning, and governance out of the box - **Observable**: A full UI for managing and inspecting your functions
## Contributing Check out [`CONTRIBUTING.md`](CONTRIBUTING.md) to get started.