Last updated February 06, 2024

As an Add-on Partner, you can opt-in to receiving certain event notifications that happen on apps where your add-on is installed. This document outlines the different types of events, how to opt-in to them and what you can expect from each one.

Opting in to an event notification

You may opt-in to any event notification by adding it to the requires array in your manifest. For example, if you wanted to subscribe to Deployment Notifications, you would update your manifest to reflect:

{
  "requires": ["deploy_notify", ...]
}

Request structure

When an notification is triggered it will send an event to the following URI:

POST /heroku/resources/:id/events

This endpoint should act just as the others in your provision API do. id is the ID you’ve sent back to Heroku when we provisioned the add-on. The request body will be in the format of:

{
  "heroku_id": "<app heroku id>",
  "event": "<event type>",
  "detail": {
    <event specific data>
  }
}

Event types

Deployment notifications

Deployment notifications get triggered when a user redeploys their app.

Requires Flag

deploy_notify

Request payload

{
  "heroku_id": "app123@heroku.com",
  "event": "deploy",
  "detail": {
    "app": "deploying-furiously-42",
    "user": "jane@somedomain.com",
    "url": "http://deploying-furiously-42.herokuapp.com",
    "head": "441e20",
    "head_long": "441e204ea9f2ddeb4fcdd7f641e6c7240ffb8b91",
    "prev_head": "953fd37b50c1382a9b7364364791e9be7e6efc71",
    "git_log": "441e204 Merge pull request #1253 from janedoe/make-it-rain
b980268 Awesome new feature
953fd37 Merge pull request #1248 from janedoe/quick-bug-fix
eb9d86d Missing something simple
4c15970 Merge pull request #1249 from janedoe/better-commit-messages-required"
  }
}

Attachment notifications

Attachment notifications occur when a user attaches your add-on to an app. This can be when attaching to the same app (in the case of many_per_app) or to another app (in the case of attachable).

For more information about how to make your add-on attachable, checkout the article Making Your Add-on Shareable.

Requires flag

attach_notify

Request payload

When an attachment is added

{
  "heroku_id": "app123@heroku.com",
  "event": "attach",
  "detail": {
    "id": "01234567-89ab-cdef-0123-456789abcdef",
    "name": "MYADDON_CYAN",
    "log_token": "d.01234567-89ab-cdef-0123-456789abcdef",
    "resource": {
      "id": "01234567-89ab-cdef-0123-456789abcdef",
      "name": "writing-nobly-1234"
    },
    "app": {
      "id": "01234567-89ab-cdef-0123-456789abcdef",
      "name": "example"
    }
  }
}

When an attachment is removed

{
  "heroku_id": "app123@heroku.com",
  "event": "detach",
  "detail": {
    "id": "01234567-89ab-cdef-0123-456789abcdef",
    "name": "MYADDON_CYAN",
    "log_token": "d.01234567-89ab-cdef-0123-456789abcdef",
    "resource": {
      "id": "01234567-89ab-cdef-0123-456789abcdef",
      "name": "writing-nobly-1234"
    },
    "app": {
      "id": "01234567-89ab-cdef-0123-456789abcdef",
      "name": "example"
    }
  }
}

log_token is optional and is only available to specific partners. If you feel your add-on would require log access, contact our Partner Team. The following links offer more information about integrating with Heroku’s Logplex system:

• Accessing App Logs
• Add-on Partner Log Integration

Response

Your service should respond with a 200 status code to acknowledge you received the notification. We will retry the request a few times if we do not receive a successful response.