validateDto method

Future<Object> validateDto(DoxRequest req, DtoSchema<Object> schema, { Source? source, })

Check the input of req with schema and give the object. source wins over the source of the DTO.

Implementation

Future<Object> validateDto(
  DoxRequest req,
  DtoSchema<Object> schema, {
  Source? source,
}) async {
  Source from = source ?? schema.source;
  if (from == Source.auto) {
    String method = req.method;
    from = method == 'GET' || method == 'HEAD' || method == 'DELETE'
        ? Source.query
        : Source.body;
  }
  Object? input;
  bool text = true;
  if (from == Source.query) {
    input = forms.query(req.uri);
  } else {
    RequestBody body = req.requestBody;
    switch (body.kind) {
      case BodyKind.json:
        input = body.json;
        text = false;
      case BodyKind.none:
        input = <String, dynamic>{};
        text = false;
      case BodyKind.invalidJson:
        throw BadRequestException(message: 'The body is not valid JSON');
      case BodyKind.urlEncoded:
        input = forms.parse(_pairs(body.text ?? ''));
      case BodyKind.multipart:
        input = forms.parse(body.parts ?? const <MapEntry<String, Object>>[]);
      case BodyKind.other:
        throw UnsupportedMediaTypeException();
    }
  }
  DtoState state = DtoState(
    root: input,
    resolver: Dox().messages,
    params: req.pathParams,
    locale: req.locale,
    text: text,
  );
  ParseResult<Object> result = await schema.run(input, state);
  if (!result.success) throw ValidationException(message: result.errors);
  return result.value as Object;
}