"""JSON schema and validators for request headers."""

from jsonschema import Draft3Validator


HEADER_SCHEMA = {
    'type': 'object',
    'properties': {
        'Correlation-Id': {
            'type': 'string',
            'required': True
        }
    },
    'additionalProperties': True
}

HEADER_VALIDATOR = Draft3Validator(schema=HEADER_SCHEMA)