validation_errors.json

{
  "message": "Validation failed",    
  "errors": [
    {
      "type": "<The type of error returned>",
      "code": "<A developer-facing message describing the error.>",
      "message": "<User friendly message to display on site>",
      "param": "<Name of parameter for in-form display>"
    },{
      "type": "<The type of error returned>",
      "code": "<A developer-facing message describing the error.>",
      "message": "<User friendly message to display on site>",
      "param": "<Name of parameter for in-form display>"               
    }
  ]
}