---
title: "List Waiters"
method: GET
path: "/v2/waiters/{eventId}"
tags: ["Notify"]
---

# List Waiters

`GET /v2/waiters/{eventId}`

## Request

- Base URL: `https://qstash-eu-central-1.upstash.io`
- URL: `https://qstash-eu-central-1.upstash.io/v2/waiters/{eventId}`
- Auth: one of:
  - HTTP bearer
  - API key in query parameter `qstash_token`
- TypeScript: <https://skmtc.dev/upstash/apis/upstash-workflow-rest-api/docs/v2/waiters/:eventId/get.ts> (a function with typed inputs; its response is checked against the schema)

List all active waiters for a specific event ID.

Returns information about all workflow runs that are currently waiting for the specified event.

## Path parameters

- `eventId` string, required

## Response `200`

List of active waiters

- Waiter[]: Array of waiters currently listening for this event.
  - `url` string: The URL that is waiting for the event notification.
  - `headers` object: The HTTP headers to send with the notification.
  - `deadline` integer: The Unix timestamp in seconds when the wait operation times out.
  - `timeoutBody` string, byte: The body to send if the wait times out.
  - `timeoutUrl` string: The URL to call if the wait times out.
  - `timeoutHeaders` object: The HTTP headers to send with the timeout callback.

## Other responses

- `400`: Bad Request - Invalid event ID
- `401`: Unauthorized
- `500`: Internal Server Error

---

[API](https://skmtc.dev/upstash/apis/upstash-workflow-rest-api.md) - [All operations](https://skmtc.dev/upstash/apis/upstash-workflow-rest-api/llms.txt) - [OpenAPI document](https://skmtc.dev/upstash/apis/upstash-workflow-rest-api/revisions/251bee05a7ec?raw)