Catmandu::Fix::validate

   # Check author field against a JSON Schema
   validate('author', JSONSchema, schema: 'my/schema.json')
   if exists(errors)
      ... # do something
   end
   # Check item against a custom validator, store in errors in 'warnings'
   validate('author', MyValidatorClass, error_field: warnings)

This Catmandu::Fix validates data with a Catmandu::Validator and stores errors in field "errors" for further inspection.

error_field

Path where to store errors. Set to "errors" by default.

Additional options are passed to the validator.

Catmandu::Fix::Condition::valid