# Inngest

## Learn

- [Home](https://www.inngest.com/docs-markdown)
- Quick starts
  - [Next.js](https://www.inngest.com/docs-markdown/getting-started/nextjs-quick-start)
  - [Node.js](https://www.inngest.com/docs-markdown/getting-started/nodejs-quick-start)
  - [Python](https://www.inngest.com/docs-markdown/getting-started/python-quick-start)
- Concepts
  - [How Durable execution works](https://www.inngest.com/docs-markdown/learn/how-functions-are-executed)
  - Durable Functions
    - [Overview](https://www.inngest.com/docs-markdown/learn/inngest-functions)
    - [Serve Inngest Functions](https://www.inngest.com/docs-markdown/learn/serving-inngest-functions)
    - [Triggering functions](https://www.inngest.com/docs-markdown/features/events-triggers)
    - [Idempotency](https://www.inngest.com/docs-markdown/guides/handling-idempotency)
  - [Durable Endpoints](https://www.inngest.com/docs-markdown/learn/durable-endpoints)
  - Steps
    - [Building with steps](https://www.inngest.com/docs-markdown/learn/inngest-steps)
    - [Sleeping](https://www.inngest.com/docs-markdown/features/inngest-functions/steps-workflows/sleeps)
    - [Wait for event + signal](https://www.inngest.com/docs-markdown/features/inngest-functions/steps-workflows/wait-for-event)
    - [Invoke other functions](https://www.inngest.com/docs-markdown/guides/invoking-functions-directly)
    - [AI steps (LLM calls)](https://www.inngest.com/docs-markdown/features/inngest-functions/steps-workflows/step-ai-orchestration)
    - [Durable Fetch](https://www.inngest.com/docs-markdown/features/inngest-functions/steps-workflows/fetch)
  - Error handling
    - [Overview](https://www.inngest.com/docs-markdown/guides/error-handling)
    - [Retries](https://www.inngest.com/docs-markdown/features/inngest-functions/error-retries/retries)
    - [Rollbacks](https://www.inngest.com/docs-markdown/features/inngest-functions/error-retries/rollbacks)
    - [Failure handlers](https://www.inngest.com/docs-markdown/features/inngest-functions/error-retries/failure-handlers)
    - [Inngest errors](https://www.inngest.com/docs-markdown/features/inngest-functions/error-retries/inngest-errors)
  - Flow control
    - [Overview](https://www.inngest.com/docs-markdown/guides/flow-control)
    - [Concurrency](https://www.inngest.com/docs-markdown/guides/concurrency)
    - [Throttling](https://www.inngest.com/docs-markdown/guides/throttling)
    - [Batching](https://www.inngest.com/docs-markdown/guides/batching)
    - [Rate limit](https://www.inngest.com/docs-markdown/guides/rate-limiting)
    - [Singleton](https://www.inngest.com/docs-markdown/guides/singleton)
    - [Debounce](https://www.inngest.com/docs-markdown/guides/debounce)
    - [Priority](https://www.inngest.com/docs-markdown/guides/priority)
  - Cancellation
    - [Overview](https://www.inngest.com/docs-markdown/features/inngest-functions/cancellation)
    - [Cancel on timeouts](https://www.inngest.com/docs-markdown/features/inngest-functions/cancellation/cancel-on-timeouts)
    - [Cancel on events](https://www.inngest.com/docs-markdown/features/inngest-functions/cancellation/cancel-on-events)
    - [Bulk cancellation](https://www.inngest.com/docs-markdown/guides/cancel-running-functions)
  - Realtime
    - [Overview](https://www.inngest.com/docs-markdown/features/realtime)
    - [React hooks / Next.js](https://www.inngest.com/docs-markdown/features/realtime/react-hooks)
  - Environments and Apps
    - [Overview](https://www.inngest.com/docs-markdown/apps)
    - [Environments](https://www.inngest.com/docs-markdown/platform/environments)
    - [Apps](https://www.inngest.com/docs-markdown/platform/manage/apps)
    - [Event keys](https://www.inngest.com/docs-markdown/events/creating-an-event-key)
    - [Signing keys](https://www.inngest.com/docs-markdown/platform/signing-keys)
- Guides
  - [Versioning](https://www.inngest.com/docs-markdown/learn/versioning)
  - [Local development](https://www.inngest.com/docs-markdown/local-development)
  - Patterns
    - [Multi-step functions](https://www.inngest.com/docs-markdown/guides/multi-step-functions)
    - [Parallel steps](https://www.inngest.com/docs-markdown/guides/step-parallelism)
    - [Fan-out](https://www.inngest.com/docs-markdown/guides/fan-out-jobs)
    - [Working with loops](https://www.inngest.com/docs-markdown/guides/working-with-loops)
    - [Delayed functions](https://www.inngest.com/docs-markdown/guides/delayed-functions)
    - [Cron functions](https://www.inngest.com/docs-markdown/guides/scheduled-functions)
    - [Background jobs](https://www.inngest.com/docs-markdown/guides/background-jobs)
    - [Multiple triggers & wildcards](https://www.inngest.com/docs-markdown/guides/multiple-triggers)
    - [Sending events from functions](https://www.inngest.com/docs-markdown/guides/sending-events-from-functions)
    - [User-defined Workflows](https://www.inngest.com/docs-markdown/guides/user-defined-workflows)
    - [Mergent migration guide](https://www.inngest.com/docs-markdown/guides/mergent-migration)
    - Workflow Kit
      - [Introduction](https://www.inngest.com/docs-markdown/reference/workflow-kit)
      - [Creating Workflow Actions](https://www.inngest.com/docs-markdown/reference/workflow-kit/actions)
      - [Using the Workflow Engine](https://www.inngest.com/docs-markdown/reference/workflow-kit/engine)
      - [Workflow instance format](https://www.inngest.com/docs-markdown/reference/workflow-kit/workflow-instance)
      - [Components API (React)](https://www.inngest.com/docs-markdown/reference/workflow-kit/components-api)
  - Deploying
    - [Overview](https://www.inngest.com/docs-markdown/platform/deployment)
    - [Sync your app](https://www.inngest.com/docs-markdown/apps/cloud)
    - [Connect](https://www.inngest.com/docs-markdown/setup/connect)
    - [Checkpointing](https://www.inngest.com/docs-markdown/setup/checkpointing)
    - Cloud providers
      - [Vercel](https://www.inngest.com/docs-markdown/deploy/vercel)
      - [DigitalOcean](https://www.inngest.com/docs-markdown/deploy/digital-ocean)
      - [Cloudflare Pages](https://www.inngest.com/docs-markdown/deploy/cloudflare)
      - [Netlify](https://www.inngest.com/docs-markdown/deploy/netlify)
      - [Render](https://www.inngest.com/docs-markdown/deploy/render)
      - [Cloud Provider Usage Limits](https://www.inngest.com/docs-markdown/usage-limits/providers)
  - [Optimizing Performance](https://www.inngest.com/docs-markdown/improve-performance)
  - [Logging](https://www.inngest.com/docs-markdown/guides/logging)
  - Middleware
    - [Overview](https://www.inngest.com/docs-markdown/features/middleware)
    - [Creating middleware](https://www.inngest.com/docs-markdown/features/middleware/create)
    - [Dependency Injection](https://www.inngest.com/docs-markdown/features/middleware/dependency-injection)
    - [Encryption Middleware](https://www.inngest.com/docs-markdown/features/middleware/encryption-middleware)
    - [Sentry Middleware](https://www.inngest.com/docs-markdown/features/middleware/sentry-middleware)
  - Events & Triggers
    - [Overview](https://www.inngest.com/docs-markdown/features/events-triggers)
    - [Sending events](https://www.inngest.com/docs-markdown/events)
    - [Event payload format](https://www.inngest.com/docs-markdown/features/events-triggers/event-format)
    - [Writing expressions](https://www.inngest.com/docs-markdown/guides/writing-expressions)
    - [Consuming webhook events](https://www.inngest.com/docs-markdown/platform/webhooks)
- Platform
  - Manage
    - [Bulk replay](https://www.inngest.com/docs-markdown/platform/replay)
    - [Bulk cancel](https://www.inngest.com/docs-markdown/platform/manage/bulk-cancellation)
    - [Pausing](https://www.inngest.com/docs-markdown/guides/pause-functions)
  - Monitor
    - [Inspecting runs](https://www.inngest.com/docs-markdown/platform/monitor/inspecting-function-runs)
    - [Traces](https://www.inngest.com/docs-markdown/platform/monitor/traces)
    - [Observability and metrics](https://www.inngest.com/docs-markdown/platform/monitor/observability-metrics)
    - [Insights](https://www.inngest.com/docs-markdown/platform/monitor/insights)
    - [Events](https://www.inngest.com/docs-markdown/platform/monitor/inspecting-events)
  - Integrations
    - [Neon](https://www.inngest.com/docs-markdown/features/events-triggers/neon)
    - [Datadog](https://www.inngest.com/docs-markdown/platform/monitor/datadog-integration)
    - [Prometheus](https://www.inngest.com/docs-markdown/platform/monitor/prometheus-metrics-export-integration)
- AI
  - [Dev Server MCP](https://www.inngest.com/docs-markdown/ai-dev-tools/mcp)
  - [AgentKit](https://www.inngest.com/docs-markdownhttps://agentkit.inngest.com)
- Resources
  - [Security](https://www.inngest.com/docs-markdown/learn/security)
  - [Glossary](https://www.inngest.com/docs-markdown/learn/glossary)
  - [Release phases](https://www.inngest.com/docs-markdown/release-phases)
  - [FAQ](https://www.inngest.com/docs-markdown/faq)
  - [Limitations](https://www.inngest.com/docs-markdown/usage-limits/inngest)

## Reference

- TypeScript SDK
  - [Introduction](https://www.inngest.com/docs-markdown/reference/typescript)
  - [Create the client](https://www.inngest.com/docs-markdown/reference/client/create)
  - [Create a function](https://www.inngest.com/docs-markdown/reference/functions/create)
  - [Send events](https://www.inngest.com/docs-markdown/reference/events/send)
  - [Errors](https://www.inngest.com/docs-markdown/reference/typescript/functions/errors)
  - [Handling failures](https://www.inngest.com/docs-markdown/reference/functions/handling-failures)
  - [Cancel on](https://www.inngest.com/docs-markdown/reference/typescript/functions/cancel-on)
  - [Concurrency](https://www.inngest.com/docs-markdown/functions/concurrency)
  - [Rate limit](https://www.inngest.com/docs-markdown/reference/functions/rate-limit)
  - [Singleton](https://www.inngest.com/docs-markdown/reference/functions/singleton)
  - [Debounce](https://www.inngest.com/docs-markdown/reference/functions/debounce)
  - [Function run priority](https://www.inngest.com/docs-markdown/reference/functions/run-priority)
  - [Extended Traces](https://www.inngest.com/docs-markdown/reference/typescript/extended-traces)
  - [Referencing functions](https://www.inngest.com/docs-markdown/functions/references)
  - [Testing](https://www.inngest.com/docs-markdown/reference/testing)
  - [Durable Endpoints](https://www.inngest.com/docs-markdown/reference/typescript/durable-endpoints)
  - Steps
    - [step.run()](https://www.inngest.com/docs-markdown/reference/functions/step-run)
    - [step.sleep()](https://www.inngest.com/docs-markdown/reference/functions/step-sleep)
    - [step.sleepUntil()](https://www.inngest.com/docs-markdown/reference/functions/step-sleep-until)
    - [step.invoke()](https://www.inngest.com/docs-markdown/reference/functions/step-invoke)
    - [step.waitForEvent()](https://www.inngest.com/docs-markdown/reference/functions/step-wait-for-event)
    - [step.sendEvent()](https://www.inngest.com/docs-markdown/reference/functions/step-send-event)
  - Serve
    - [Configuration](https://www.inngest.com/docs-markdown/reference/serve)
    - [Streaming](https://www.inngest.com/docs-markdown/streaming)
  - Middleware
    - [Lifecycle](https://www.inngest.com/docs-markdown/reference/middleware/lifecycle)
    - [Examples](https://www.inngest.com/docs-markdown/reference/middleware/examples)
    - [TypeScript](https://www.inngest.com/docs-markdown/reference/middleware/typescript)
  - Using the SDK
    - [Environment variables](https://www.inngest.com/docs-markdown/sdk/environment-variables)
    - [Using TypeScript](https://www.inngest.com/docs-markdown/typescript)
    - [ESLint plugin](https://www.inngest.com/docs-markdown/sdk/eslint)
    - [Upgrading to v3](https://www.inngest.com/docs-markdown/sdk/migration)
- Python SDK
  - [Introduction](https://www.inngest.com/docs-markdown/reference/python)
  - [Quick start](https://www.inngest.com/docs-markdown/reference/python/overview/quick-start)
  - [Inngest Client](https://www.inngest.com/docs-markdown/reference/python/client/overview)
  - [Create function](https://www.inngest.com/docs-markdown/reference/python/functions/create)
  - [Send events](https://www.inngest.com/docs-markdown/reference/python/client/send)
  - [Environment variables](https://www.inngest.com/docs-markdown/reference/python/overview/env-vars)
  - [Production mode](https://www.inngest.com/docs-markdown/reference/python/overview/prod-mode)
  - Steps
    - [invoke](https://www.inngest.com/docs-markdown/reference/python/steps/invoke)
    - [invoke_by_id](https://www.inngest.com/docs-markdown/reference/python/steps/invoke_by_id)
    - [parallel](https://www.inngest.com/docs-markdown/reference/python/steps/parallel)
    - [run](https://www.inngest.com/docs-markdown/reference/python/steps/run)
    - [send_event](https://www.inngest.com/docs-markdown/reference/python/steps/send-event)
    - [sleep](https://www.inngest.com/docs-markdown/reference/python/steps/sleep)
    - [sleep_until](https://www.inngest.com/docs-markdown/reference/python/steps/sleep-until)
    - [wait_for_event](https://www.inngest.com/docs-markdown/reference/python/steps/wait-for-event)
  - Middleware
    - [Overview](https://www.inngest.com/docs-markdown/reference/python/middleware/overview)
    - [Lifecycle](https://www.inngest.com/docs-markdown/reference/python/middleware/lifecycle)
  - Guides
    - [Testing](https://www.inngest.com/docs-markdown/reference/python/guides/testing)
    - [Modal](https://www.inngest.com/docs-markdown/reference/python/guides/modal)
    - [Pydantic](https://www.inngest.com/docs-markdown/reference/python/guides/pydantic)
  - Migrations
    - [v0.4 to v0.5](https://www.inngest.com/docs-markdown/reference/python/migrations/v0.4-to-v0.5)
    - [v0.3 to v0.4](https://www.inngest.com/docs-markdown/reference/python/migrations/v0.3-to-v0.4)
- Go SDK
  - [Reference](https://www.inngest.com/docs-markdownhttps://pkg.go.dev/github.com/inngest/inngestgo)
  - Migrations
    - [v0.8 to v0.11](https://www.inngest.com/docs-markdown/reference/go/migrations/v0.8-to-v0.11)
    - [v0.7 to v0.8](https://www.inngest.com/docs-markdown/reference/go/migrations/v0.7-to-v0.8)
- [REST API](https://www.inngest.com/docs-markdownhttps://api-docs.inngest.com/docs/inngest-api/1j9i5603g5768-introduction)
- System events
  - [function.failed](https://www.inngest.com/docs-markdown/reference/system-events/inngest-function-failed)
  - [function.cancelled](https://www.inngest.com/docs-markdown/reference/system-events/inngest-function-cancelled)
- [Self-hosting](https://www.inngest.com/docs-markdown/self-hosting)

## Examples

- Examples
  - [All examples](https://www.inngest.com/docs-markdown/examples/)
  - [AI Agents and RAG](https://www.inngest.com/docs-markdown/examples/ai-agents-and-rag)
  - [Email Sequence](https://www.inngest.com/docs-markdown/examples/email-sequence)
  - [Scheduling a one-off function](https://www.inngest.com/docs-markdown/examples/scheduling-one-off-function)
  - [Fetch run status and output](https://www.inngest.com/docs-markdown/examples/fetch-run-status-and-output)
  - [Track all function failures in Datadog](https://www.inngest.com/docs-markdown/examples/track-failures-in-datadog)
  - [Cleanup after function cancellation](https://www.inngest.com/docs-markdown/examples/cleanup-after-function-cancellation)
  - [Fetch: Durable HTTP requests](https://www.inngest.com/docs-markdown/examples/fetch)
  - [Stream updates from functions](https://www.inngest.com/docs-markdown/examples/realtime)
  - [Setup OpenTelemetry with Inngest](https://www.inngest.com/docs-markdown/examples/open-telemetry)
  - [Durable Endpoints](https://www.inngest.com/docs-markdown/examples/durable-endpoints)
  - [Trigger workflows from Retool](https://www.inngest.com/docs-markdown/guides/trigger-your-code-from-retool)
  - [Instrumenting GraphQL](https://www.inngest.com/docs-markdown/guides/instrumenting-graphql)
  - [Handle Clerk webhooks](https://www.inngest.com/docs-markdown/guides/clerk-webhook-events)
  - [Handle Resend webhooks](https://www.inngest.com/docs-markdown/guides/resend-webhook-events)
- Middleware
  - [Cloudflare Workers & Hono environment variables](https://www.inngest.com/docs-markdown/examples/middleware/cloudflare-workers-environment-variables)