keystone.api.validation.validators module

Internal implementation of request/response validating middleware.

class keystone.api.validation.validators.FormatChecker(formats: Iterable[str] | None = None)[source]

Bases: FormatChecker

A FormatChecker can output the message from cause exception.

We need understandable validation errors messages for users. When a custom checker has an exception, the FormatChecker will output a readable message provided by the checker.

check(param_value, format)[source]

Check whether the param_value conforms to the given format.

Parameters:

  • param_value – the param_value to check

  • format (str) – the format that param_value should conform to

Type:

any primitive type (str, number, bool)

Raises:

FormatError if param_value does not conform to format