Azure:如何在React native中使用SAS令牌上载映像

我正在工作上传在azureblob存储摄像头图像。我正在使用SAS令牌进行上载图像。但是当前正在azure端获取损坏的映像。我已尝试:

RNFetchBlob.fs.readStream( '..../Containers/Data/Application/4364E917-8704-43BA-9997-E04E3E294EC7/tmp/0C31F6EA-173C-4DBE-896F-295D87D405E0.jpg','base64' )
                .then((stream) => {
                    let data = ''
                    stream.open()
                    stream.onData((chunk) => {
                        data += chunk
                    })
                    stream.onEnd(() => {
                        console.log(data)
                    })
                }).catch((err) => { console.log( err ) });

axios.put( "myurl"+azureToken,formData, {
          headers: {
             'x-ms-blob-type': 'BlockBlob'
          }
        })
        .then(response => {
          hideSpinner(dispatch);
          console.log(response);
        })