Positive payload is causing the API `/book/{id}` to consider it as an invalid data.

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Description of issues

This is a critical issue, because valid data when sent to server is considered invalid. This can interrupt the users from using your platform/services.

Test Summary

We tried a positive scenario by putting value of field id as 0 . Testing with zero, which is a valid integer but may not be a valid ID in some systems

DELETE /book/{id}

Payload:

{
  "id": 0
}

Response:

{
  "notAJson": "Not found"
}