如何使用S3中的应用程序/八进制流解析TUS节点、TUS、Uppy或.NET，

Question

这是一个问题的解释，我在使用tus-node-server或Tusd将文件上传到S3时遇到了问题。

问题是，我有一个运行tus服务器的服务器，它接收来自react的请求，并对本地客户端做出反应。该文件成功地从客户端上传到S3，但是当我在S3桶中检查时，内容类型总是转换为S3。

尝试设置内容类型的标题，但tus服务器不喜欢这样。

在下面的回答中，我解释了如何解决这个问题：

Answer 1

事实证明，它必须作为元数据从tus-js或uppy客户端作为元数据传递。

代码如下：

uppy

​

       uppy.addFiles({
              name: asset.fileName,
              type: asset.type,
              data: asset,
              meta: {
                name: asset.fileName,
                type: asset.type,
                contentType: asset.type, //This field is how you set content-type, it will be parsed on the tus server automatically and will set the correct content-type
              },
       })

​

tus-js-client

​

        var upload = new tus.Upload({
              name: asset.fileName,
              type: asset.type,
              data: asset,
              meta: {
                name: asset.fileName,
                type: asset.type,
                contentType: asset.type, //This field is how you set content-type, it will be parsed on the tus server automatically and will set the correct content-type
              }
        }, {
        endpoint: "http://localhost:1080/files/",
        retryDelays: [0, 3000, 5000, 10000, 20000],
        metadata: {
            filename: file.name,
            filetype: file.type
        },
        onError: function(error) {
            console.log("Failed because: " + error)
        },
        onProgress: function(bytesUploaded, bytesTotal) {
            var percentage = (bytesUploaded / bytesTotal * 100).toFixed(2)
            console.log(bytesUploaded, bytesTotal, percentage + "%")
        },
        onSuccess: function() {
            console.log("Download %s from %s", upload.file.name, upload.url)
        }
    })
    
    // Check if there are any previous uploads to continue.
    upload.findPreviousUploads().then(function (previousUploads) {
        // Found previous uploads so we select the first one. 
        if (previousUploads.length) {
            upload.resumeFromPreviousUpload(previousUploads[0])
        }
    
        // Start the upload
        upload.start()
    })

​

请注意，contentType是在tus服务器头上设置内容类型的关键.元数据将被解码，并将正确设置为S3内容类型。