from __future__ import annotations import logging import fastjsonschema # type: ignore from aws_lambda_powertools.utilities.validation.exceptions import InvalidSchemaFormatError, SchemaValidationError logger = logging.getLogger(__name__) def validate_data_against_schema( data: dict | str, schema: dict, formats: dict | None = None, handlers: dict | None = None, provider_options: dict | None = None, ) -> dict | str: """Validate dict data against given JSON Schema Parameters ---------- data : dict Data set to be validated schema : dict JSON Schema to validate against formats: dict Custom formats containing a key (e.g. int64) and a value expressed as regex or callback returning bool handlers: Dict Custom methods to retrieve remote schemes, keyed off of URI scheme provider_options: Dict Arguments that will be passed directly to the underlying validation call, in this case fastjsonchema.validate. For all supported arguments see: https://horejsek.github.io/python-fastjsonschema/#fastjsonschema.validate Returns ------- Dict The validated event. If the schema specifies a `default` value for fields that are omitted, those default values will be included in the response. Raises ------ SchemaValidationError When schema validation fails against data set InvalidSchemaFormatError When JSON schema provided is invalid """ try: formats = formats or {} handlers = handlers or {} provider_options = provider_options or {} return fastjsonschema.validate( definition=schema, data=data, formats=formats, handlers=handlers, **provider_options, ) except (TypeError, AttributeError, fastjsonschema.JsonSchemaDefinitionException) as e: raise InvalidSchemaFormatError(f"Schema received: {schema}, Formats: {formats}. Error: {e}") except fastjsonschema.JsonSchemaValueException as e: message = f"Failed schema validation. Error: {e.message}, Path: {e.path}, Data: {e.value}" # noqa: B306 raise SchemaValidationError( message, validation_message=e.message, # noqa: B306 name=e.name, path=e.path, value=e.value, definition=e.definition, rule=e.rule, rule_definition=e.rule_definition, )