---
title: Heroku
summary: Fastly will stream log messages to the Heroku account in the format specified in the Heroku object.
url: https://www.fastly.com/documentation/reference/api/logging/heroku
---

Fastly will stream log messages to the Heroku account in the format specified in the Heroku object.

## Data model

| Field | Type | Description |
|-------|------|-------------|
| `token` | string | The token to use for authentication (<a href="https://devcenter.heroku.com/articles/add-on-partner-log-integration">https://devcenter.heroku.com/articles/add-on-partner-log-integration</a>). |
| `url` | string | The URL to stream logs to. |
| `format` | string | A Fastly <a href="https://www.fastly.com/documentation/guides/integrations/streaming-logs/custom-log-formats/">log format string</a>. |
| `format_version` | integer | The version of the custom logging format used for the configured endpoint. The logging call gets placed by default in <code>vcl_log</code> if <code>format_version</code> is set to <code>2</code> and in <code>vcl_deliver</code> if <code>format_version</code> is set to <code>1</code>. |
| `log_processing_region` | string | The geographic region where the logs will be processed before streaming. Valid values are <code>us</code>, <code>eu</code>, and <code>none</code> for global. |
| `name` | string | The name for the real-time logging configuration. |
| `placement` | string | Where in the generated VCL the logging call should be placed. If not set, endpoints with <code>format_version</code> of 2 are placed in <code>vcl_log</code> and those with <code>format_version</code> of 1 are placed in <code>vcl_deliver</code>. |
| `response_condition` | string | The name of an existing condition in the configured endpoint, or leave blank to always execute. |
| `created_at` | string | Date and time in ISO 8601 format. (Read-only) |
| `deleted_at` | string | Date and time in ISO 8601 format. (Read-only) |
| `service_id` | string | Alphanumeric string identifying the service. (Read-only) |
| `updated_at` | string | Date and time in ISO 8601 format. (Read-only) |
| `version` | string | String identifying a service version. (Read-only) |

## API endpoints

### List Heroku log endpoints

**GET** `/service/{service_id}/version/{version_id}/logging/heroku`

List all of the Herokus for a particular service and version.

**Parameters:**

| Name | Type | In | Required | Description |
|------|------|----|---------|--------------|
| `service_id` | string | path | Yes | Alphanumeric string identifying the service. |
| `version_id` | integer | path | Yes | Integer identifying a service version. |

### Create a Heroku log endpoint

**POST** `/service/{service_id}/version/{version_id}/logging/heroku`

Create a Heroku for a particular service and version.

**Parameters:**

| Name | Type | In | Required | Description |
|------|------|----|---------|--------------|
| `service_id` | string | path | Yes | Alphanumeric string identifying the service. |
| `version_id` | integer | path | Yes | Integer identifying a service version. |

### Get a Heroku log endpoint

**GET** `/service/{service_id}/version/{version_id}/logging/heroku/{logging_heroku_name}`

Get the Heroku for a particular service and version.

**Parameters:**

| Name | Type | In | Required | Description |
|------|------|----|---------|--------------|
| `logging_heroku_name` | string | path | Yes | The name for the real-time logging configuration. |
| `service_id` | string | path | Yes | Alphanumeric string identifying the service. |
| `version_id` | integer | path | Yes | Integer identifying a service version. |

### Update the Heroku log endpoint

**PUT** `/service/{service_id}/version/{version_id}/logging/heroku/{logging_heroku_name}`

Update the Heroku for a particular service and version.

**Parameters:**

| Name | Type | In | Required | Description |
|------|------|----|---------|--------------|
| `logging_heroku_name` | string | path | Yes | The name for the real-time logging configuration. |
| `service_id` | string | path | Yes | Alphanumeric string identifying the service. |
| `version_id` | integer | path | Yes | Integer identifying a service version. |

### Delete the Heroku log endpoint

**DELETE** `/service/{service_id}/version/{version_id}/logging/heroku/{logging_heroku_name}`

Delete the Heroku for a particular service and version.

**Parameters:**

| Name | Type | In | Required | Description |
|------|------|----|---------|--------------|
| `logging_heroku_name` | string | path | Yes | The name for the real-time logging configuration. |
| `service_id` | string | path | Yes | Alphanumeric string identifying the service. |
| `version_id` | integer | path | Yes | Integer identifying a service version. |