Question

我正在批准presignedUrl方法来上传大文件。

我从角度代码到服务器端调用一个API，这给了我presignedUrl，然后我需要上传一个URL。

我对此有疑问

1）我的Angular端是否需要AWS开发工具包？

我认为我不需要它，我只是将PUT请求发送到未签名的URL和文件

  uploadfileAWSS3old(e,f){    

    const formData = new FormData();
    formData.append("data",JSON.stringify({name:"testname"}));
    formData.append("file", f.files[0]);

    let contentType = f.files["0"].type;

     const headers = new HttpHeaders(
       {
         'Content-Type': contentType
        });
     const req = new HttpRequest('PUT',this.URL,formData,
     {
       headers: headers,
       reportProgress: true, //This is required for track upload process
     });

     console.log(req)
      this.http.request(req)
        .subscribe(event=>{
          console.log(event)
        })

    }

但是出现

错误

  SignatureDoesNotMatch请求   我们计算出的签名与您提供的签名不匹配。   检查您的钥匙并签名   方法.ASIAU7D2TEMAFBDCV3P5PUT

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如何从ClientSide javascrript

0 个答案: