PUT NSData to PreSigned URL from S3 with Alamofire.upload(...) not working on iOS 8

Question

以下代码在 iOS9 上运行良好，但在 iOS8 上运行运行时失败，亚马逊返回错误 400。响应仅包含 headers:

连接=关闭； "Content-Type" = "application/xml";日期=“星期三， 2016 年 4 月 13 日 12:19:21 GMT"；服务器 = AmazonS3；...

NSData 是一张图片，而 Content-Type 是 "image/png"，这告诉亚马逊不要将其存储为 "binary/octet-stream"。

func uploadFile(locationURL: String, http: Alamofire.Method, mimeType: String, fileData: NSData) -> ApiCaller {
    Alamofire.upload(http, locationURL, headers: ["Content-Type": mimeType], data: fileData)
        .progress { bytesWritten, totalBytesWritten, totalBytesExpectedToWrite in
            if let uploadProgress = self.uploadProgress {
                uploadProgress(bytesWritten, totalBytesWritten, totalBytesWritten);
            }
        }
        .response { (req, res, json, error) in
            self.returnResult(req, res: res, json: json, error: error, tag: 0)
            return();
        }
    return self;
}

Answer 1

这个人引导我找到答案：Other guy having similar issue.

事实证明，Alamofire 中管理器 session 上的 HTTPAdditionalHeaders 有 headers 来自我之前的调用，而 Amazon S3 在 iOS 上不喜欢这个 8.

因此，我所需要的只是在使用 .upload(...) 函数之前清除 headers。

Alamofire.Manager.sharedInstance.session.configuration.HTTPAdditionalHeaders = [:];

PUT NSData to PreSigned URL from S3 with Alamofire.upload(...) not working on iOS 8

PUT NSData to PreSigned URL from S3 with Alamofire.upload(...) not working on iOS 8

swift

amazon-s3

ios8

alamofire