alamofire - 将 try await 与上传请求一起使用

Question

我正在使用以下代码进行多部分数据上传

let postValue = try await AF.upload(multipartFormData: { multipartFormData in
        multipartFormData.append("123".data(using: .utf8, allowLossyConversion: false)!, withName: "number1")
        multipartFormData.append("456".data(using: .utf8, allowLossyConversion: false)!, withName: "number2")
        multipartFormData.append("SomeLocation".data(using: .utf8, allowLossyConversion: false)!, withName: "location")
    }, to: "http://httpbin.org/post").uploadProgress { progress in
        debugPrint(progress)
    }.serializingDecodable(PostResponse.self).value

在uploadProgress这种情况下，将用作闭包，这有点反对尝试等待。有没有更好的使用方法？

Answer 1

有一个你可以使用的await能力StreamOf<Progress>，但你需要单独处理异步流，所以继续使用闭包 API 通常是最方便的。

let request = AF.upload(...)
Task {
  for await progress in request.uploadProgress() {
    debugPrint(progress)
  }
}
let value = try await request.serializingDecodable(PostResponse.self).value