ios - 从 '(_) throws -> ()'类型的 throw 函数无效转换为 '(Response) -> Void'类型的非 throw 函数

Question

我需要处理这样的api错误代码，并为某些状态代码抛出错误。但是遵循代码显示了以上错误。我怎样才能做到这一点？

func login(data: [String: Any], completion: @escaping (ResponseModel<SignUpModel>?) -> Void) throws {
        NetworkAdapter.request(target: .login(data: data), success: { (response) in

            if let responseModel =  try? JSONDecoder().decode(ResponseModel<SignUpModel>.self,from: response.data) {
                switch responseModel.statusCode {
                case 2000:
                    completion(responseModel)
                case 4005:
                    throw ValidationError.athenticationFailure
                case .none,.some:
                    break
                }
                completion(responseModel)
            } else {
            }
        })
    }

Answer 1

你不能

throw ValidationError.athenticationFailure

因为请求是异步的。您可以将完成类型更改为 Result<ResponseModel<SignUpModel>, ValidationError>以返回

completion(.success(responseModel))

成功与

completion(.failure(athenticationFailure)

失败。顺便说一句，我买了 u😉