Extension on upload doesnt show

Hi I have uploaded a file using reactjs and nodejs. Using the following code:

const tus = require('tus-node-server');
const serverFile = new tus.Server();
serverFile.datastore = new tus.FileStore({
    path: '/files'
});

const express = require('express');
const app = express();
const uploadApp = express();
uploadApp.all('*', serverFile.handle.bind(serverFile));
app.use('/uploads', uploadApp);

const host = '127.0.0.1';
const port = 9000;
app.listen(port, host);

And for the reactjs component:

<input type={'file'} onChange={(e) => {
    // Get the selected file from the input element
    var file = e.target.files[0]
    // Create a new tus upload
    var upload = new tus.Upload(file, {
      endpoint: "http://localhost:9000/uploads/",
      retryDelays: [0, 1000, 3000, 5000],
      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)
      }
    })
    // Start the upload
    upload.start()
}}/>

It uploads the file fine, however it doesn’t upload the file with the adequate extension? I am new to tus and was using other modules before this. Where am I going wrong? I am using serverFile as there is already another server specified in the file elsewhere: const server = require('http').Server(app);

[adrienfloor]

Awesome, thanks a lot @Acconut !

[Acconut]

@adrienfloor You need to put the content type into the metadata, like this:

var upload = new tus.Upload(file, {
      endpoint: "http://localhost:9000/uploads/",
      retryDelays: [0, 1000, 3000, 5000],
      metadata: {
        contentType: file.type
      },

See https://github.com/tus/tus-node-server/blob/2f800162e8ea6e60682f0bc62b8fe5597dbc17a9/lib/stores/S3Store.js#L138