> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vook.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Deliver a signed sample payload to a candidate callback_url

> Runs the same validation as job submit, then delivers a signed sample `transcription_job.resolved` payload and returns the outcome. It starts no work and costs nothing, so you can verify your signature check before you send audio.



## OpenAPI

````yaml /api-reference/openapi.json post /api/v1/webhooks/test
openapi: 3.0.0
info:
  title: Vook API
  description: >-
    Public transcription API. Authenticate every request with your API key:
    `Authorization: Bearer vk_live_…`.


    ## Transcribe a file (3 calls)


    1. **`POST /api/v1/uploads/init`** → returns an `upload_url`, an
    `upload_token` and the token's `expires_at`.

    2. **`POST {upload_url}`**: POST the whole file to the `upload_url` returned
    by call 1 (**a different host from this API**) as `multipart/form-data` with
    a single `chunk` field, authenticated with `Authorization: Bearer
    {upload_token}`. The file is sent as a single chunk; no chunk index/count is
    needed. This step is on the ingress service and is not listed below.

    3. **`POST /api/v1/transcription-jobs`**: pass the `upload_token` +
    `file_name` + `language` + `diarize`. Returns a job `id`.


    Then **poll `GET /api/v1/transcription-jobs/{id}`** until `status` is
    `completed` (or `failed`). Read the `transcription_id` through **`GET
    /api/v1/transcriptions/{id}`** and its `/transcript` / `/export`
    sub-resources.
  version: v1
  contact: {}
servers:
  - url: https://www.api.vook.ai
    description: Production
security: []
tags: []
paths:
  /api/v1/webhooks/test:
    post:
      tags:
        - Webhooks (API v1)
      summary: Deliver a signed sample payload to a candidate callback_url
      description: >-
        Runs the same validation as job submit, then delivers a signed sample
        `transcription_job.resolved` payload and returns the outcome. It starts
        no work and costs nothing, so you can verify your signature check before
        you send audio.
      operationId: ApiV1WebhooksController_test
      parameters: []
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/ApiWebhookTestDto'
      responses:
        '201':
          description: Delivery outcome
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ApiWebhookTestResponseDto'
        '400':
          description: >-
            The callback_url is not a public https endpoint on a standard port
            (error code: invalid_callback_url).
      security:
        - bearer: []
components:
  schemas:
    ApiWebhookTestDto:
      type: object
      properties:
        callback_url:
          type: string
          maxLength: 2048
          description: Candidate webhook endpoint. Public https, standard port.
          example: https://example.com/vook/webhook
      required:
        - callback_url
    ApiWebhookTestResponseDto:
      type: object
      properties:
        delivered:
          type: boolean
          description: Whether the endpoint answered 2xx
          example: true
        status_code:
          type: number
          nullable: true
          description: HTTP status the endpoint answered, null on a transport error
          example: 200
        duration_ms:
          type: number
          description: Round-trip time in milliseconds
          example: 143
        error:
          type: string
          nullable: true
          description: Transport error, null when the endpoint answered
          example: null
      required:
        - delivered
        - duration_ms
  securitySchemes:
    bearer:
      scheme: bearer
      bearerFormat: vk_live_…
      type: http
      description: Your Vook API key (mint one from the web app).

````

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