[Tenjin API Reference](https://api-docs.tenjin.com/llms.txt) › [Campaign Management API](https://api-docs.tenjin.com/campaign-management-api.md) › List S2S callbacks for an app

- Campaign Management API OpenAPI spec: https://api-docs.tenjin.com/openapi/campaign-management-api.json

# List S2S callbacks for an app

- **Method:** `GET`
- **Path:** `/v2/apps/{app_id}/s2s_callbacks`
- **Operation ID:** `get_apps_app_id_s2s_callbacks`
- **Tags:** S2S Callbacks

## Effective servers

- `https://api.tenjin.com`

## Authentication

- **Bearer**: HTTP bearer (`JWT`)

  Generate an access token on the [Access Tokens](https://dashboard.tenjin.com/dashboard/access_tokens) page of the Tenjin dashboard and send it as `Authorization: Bearer <access token>`. [API access tokens](https://tenjin.com/docs/api-access-tokens/) explains them.

## Path parameters

- **`app_id` (required)**: `string`, format: `uuid`, maxLength: `36`

  Id of the app

## Query parameters

- **`page`**: `integer`, default: `1`

  Page of results to fetch.
- **`per_page`**: `integer`, default: `25`, minimum: `0`, maximum: `1000`

  Number of results to return per page.

## Responses

### 200 S2S callbacks

**Headers:**

- **`Link`**

  URLs of the first, previous, next and last pages (RFC 8288); sent only when the list has more than one page

  `string`
- **`Total`**

  Number of items on all pages

  `integer`
- **`Per-Page`**

  Number of items per page

  `integer`

**Content type:** `application/json`

schema: `S2SCallbackListDocument`

- **`data` (required)**: `array`

  **Items:**

  schema: `S2SCallbackResource`
  - **`attributes` (required)**: `object`
    - **`action` (required)**: `string`, possible values: `"ping", "ping_on_first", "notify_on_reengagement"`

      `ping` to notify on every event; `ping_on_first` to notify on install and `notify_on_reengagement` on reengagement, both for the open event only
    - **`active` (required)**: `boolean`

      Whether Tenjin sends the callback
    - **`advertising_id_filter` (required)**: `boolean`

      Only send the callback for users with a known advertising id
    - **`app_id` (required)**: `string | null`, format: `uuid`

      Id of the app
    - **`created_at` (required)**: `string`, format: `date-time`

      When the callback was created
    - **`event` (required)**: `string`

      Event that sends the callback
    - **`first_party` (required)**: `boolean | null`

      Whether this is a first-party (destination belongs to the advertiser) S2S callback
    - **`http_method` (required)**: `string`, possible values: `"GET", "POST"`

      HTTP method
    - **`name` (required)**: `string`

      Name of the S2S callback
    - **`url` (required)**: `string`

      URL Tenjin calls. Macros such as `{{bundle_id}}` are filled in
    - **`user_filter` (required)**: `array of integer`

      Only send the callback for users attributed to these channels; all users when empty
  - **`id` (required)**: `string`, format: `uuid`
  - **`type` (required)**: `string`, possible values: `"s2s_callbacks"`
- **`links` (required)**: `object`, schema: `Links`
  - **`self` (required)**: `string`, format: `uri`

    URL of this request
  - **`first`**: `string`, format: `uri`

    URL of the first page of a list
  - **`last`**: `string`, format: `uri`

    URL of the last page of a list
  - **`next`**: `string`, format: `uri`

    URL of the next page of a list
  - **`prev`**: `string`, format: `uri`

    URL of the previous page of a list
- **`meta` (required)**: `object`, schema: `PageMeta`
  - **`count` (required)**: `integer`

    Number of items on all pages
  - **`per_page` (required)**: `integer`

    Number of items per page

**Example: S2S callbacks**

```json
{
  "data": [
    {
      "id": "06daaf45-8bab-4070-848b-b198024fb927",
      "type": "s2s_callbacks",
      "attributes": {
        "app_id": "e3448393-bbf4-432e-9d4d-bdf640508b4c",
        "name": "S2S Purchase",
        "event": "purchase",
        "url": "https://fake.tenjin.com?bundle_id={{bundle_id}}",
        "http_method": "GET",
        "active": true,
        "created_at": "2024-12-18T00:01:32.473Z",
        "action": "ping",
        "advertising_id_filter": true,
        "user_filter": [
          1,
          3,
          5
        ],
        "first_party": false
      }
    },
    {
      "id": "06daaf45-8bab-4070-848b-a087913ea818",
      "type": "s2s_callbacks",
      "attributes": {
        "app_id": "e3448393-bbf4-432e-9d4d-bdf640508b4c",
        "name": "S2S Open",
        "event": "open",
        "url": "https://fake.tenjin.com?bundle_id={{bundle_id}}&advertising_id={{advertising_id}}",
        "http_method": "GET",
        "active": false,
        "created_at": "2023-11-12T00:03:34.442Z",
        "action": "ping_on_first",
        "advertising_id_filter": false,
        "user_filter": [],
        "first_party": false
      }
    }
  ],
  "links": {
    "self": "https://api.tenjin.com/v2/apps/e3448393-bbf4-432e-9d4d-bdf640508b4c/s2s_callbacks"
  },
  "meta": {
    "count": 2,
    "per_page": 25
  }
}
```

### 400, 401, 403, 498

- `400` A param is missing or invalid, a record is not found, or the request cannot be served
- `401` Missing or invalid credentials, or no access to the requested data
- `403` Invalid token, the user's role does not allow the request, or the organization has no access to S2S callbacks
- `498` Expired token, or a token with an invalid signature

**Content type:** `application/json`

schema: `Error`

- **`error` (required)**: `string`

  What went wrong

**Example:**

```json
{
  "error": ""
}
```

## Schemas

- `Error` — shown above.
- `S2SCallbackListDocument` — shown above.
- `Links` — shown above.
- `PageMeta` — shown above.
- `S2SCallbackResource` — shown above.