Publish Message

{
  "title": "Publish a Message to a Destination URL",
  "description": "Example showing how to publish a JSON message to an endpoint with a 5-minute delay and 3 retries",
  "request": {
    "method": "POST",
    "url": "https://qstash.upstash.io/v2/publish/https://example.com/webhook",
    "headers": {
      "Authorization": "Bearer <QSTASH_TOKEN>",
      "Content-Type": "application/json",
      "Upstash-Delay": "5m",
      "Upstash-Retries": "3",
      "Upstash-Callback": "https://example.com/callback"
    },
    "body": {
      "event": "user.created",
      "userId": "usr_abc123",
      "timestamp": 1749686400
    }
  },
  "response": {
    "status": 201,
    "body": {
      "messageId": "msg_2XavMmRcJHJf7HkNtNqjfVf8uQe",
      "url": "https://example.com/webhook"
    }
  }
}