# Create booking with reservation ID

Confirm a reservation and convert it into a full appointment with customer data.

Endpoint: POST /v1/booker-services/appointments/confirm
Version: 0.0.4
Security: BookerSecretAuth

## Response 200 fields (application/json):

  - `data` (object)
    Generic response data object for proxied GraphQL entities.
    Example: {"id":"65f4c840b6f1a10012ab34cd","externalId":"ext_1001","name":"Demo value"}

  - `status` (integer)
    Operation status flag.
    Example: 1

## Response 401 fields (application/json):

  - `error` (string, required)
    Error message.
    Example: "Invalid request payload"

  - `name` (string)
    Error class name.
    Example: "BadRequestError"

  - `errorCode` (string)
    Application-specific error code.
    Example: 2

  - `details` (object)
    Structured error details.
    Example: {"query":{"page":"invalid"}}

  - `extras` (object,null)
    Extra error metadata from downstream services.
    Example: {"code":"GRAPHQL_VALIDATION_FAILED"}

## Response 500 fields (application/json):

  - `error` (string, required)
    Error message.
    Example: "Invalid request payload"

  - `name` (string)
    Error class name.
    Example: "BadRequestError"

  - `errorCode` (string)
    Application-specific error code.
    Example: 2

  - `details` (object)
    Structured error details.
    Example: {"query":{"page":"invalid"}}

  - `extras` (object,null)
    Extra error metadata from downstream services.
    Example: {"code":"GRAPHQL_VALIDATION_FAILED"}