# GET FIRST UNUSED SCRATCHCARD

Get first unused scratchcard.

Endpoint: GET /api/v1/scratchcards/get_first_unused
Version: v1

## Request fields (application/json):

  - `ra` (string)
    The registration authority id

## Response 200 fields (application/json):

  - `pk` (number)
    The scratchcard database id

  - `sn` (number)
    The scratchcard serial number

  - `secrets` (object)

  - `secrets.erc` (string)
    A code specially used for revoking the associated certificate

  - `secrets.enrollment_code` (string)
    The password required for logging into Uanataca services

  - `secrets.pin` (string)
    The secret code used for certificate usage

  - `secrets.puk` (string)
    A code required for unblocking the certificate

  - `registration_authority` (number)
    The registration authority id the scratchcard is associated

## Response 400 fields (application/json):

  - `detail` (string)
    JSON syntax error message