update tus-test to a working version, which uses XHR to get the blob

uppy-react-native-expo/App.js

@@ -64,7 +64,7 @@ export default class App extends React.Component {
       name: 'photo.jpg',
     }
 
-    await testUploadFileWithTus(photo)
+    testUploadFileWithTus(photo)
 
     // this.uppy.addFile({
     //   source: 'React Native',
@@ -113,7 +113,7 @@ export default class App extends React.Component {
       if (!isAllowed) return
 
       ImagePicker.launchImageLibraryAsync({
-        base64: true
+        base64: false
       })
         .then((result) => {
           console.log(result)
@@ -154,7 +154,7 @@ export default class App extends React.Component {
     this.setState({
       status: 'Uploading...'
     })
-    this.uppy.upload()
+    // this.uppy.upload()
   }
 
   showFilePicker (visible) {

uppy-react-native-expo/tus-test.js

@@ -1,75 +1,47 @@
 /* eslint-disable */
 
 import tus from 'tus-js-client'
-import { FileSystem } from 'expo'
 // import tus from 'react-native-tus-client'
 
-if (!global.atob) {
-  global.atob = require('base-64').decode
-}
-
-// const b64toBlob = (b64Data, contentType = '', sliceSize = 512) => {
-//   const byteCharacters = atob(b64Data)
-//   const byteArrays = []
-
-//   for (let offset = 0; offset < byteCharacters.length; offset += sliceSize) {
-//     const slice = byteCharacters.slice(offset, offset + sliceSize)
-
-//     const byteNumbers = new Array(slice.length)
-//     for (let i = 0; i < slice.length; i++) {
-//       byteNumbers[i] = slice.charCodeAt(i)
-//     }
-
-//     const byteArray = new Uint8Array(byteNumbers)
-
-//     byteArrays.push(byteArray)
-//   }
-
-//   const blob = new Blob(byteArrays, {type: contentType})
-//   return blob
-// }
-
-async function testUploadFileWithTus (file) {
+function testUploadFileWithTus (file) {
   console.log('Attempting a tus upload in React Native...')
   console.log('with file: ', file)
 
-  let b64 = await FileSystem.readAsStringAsync(file.uri, {
-    encoding: FileSystem.EncodingTypes.Base64
-  })
-
-  const byteCharacters = atob(b64)
-  const blob = new Blob([byteCharacters], {type: 'image/jpeg'})
-  console.log('BLOB --------> 456', blob)
-
-  // const response = await fetch(file.uri)
-  // const blob = await response.blob()
-
-  // console.log('base64 ---------->', file.base64)
-  // b64 = 'data:image/jpeg;base64,' + b64
-  // file = b64toBlob(file.base64, 'image/jpeg')
-
-  // Create a new tus upload
-  var upload = new tus.Upload(blob, {
-    endpoint: 'https://master.tus.io/files/',
-    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()
+  const xhr = new XMLHttpRequest()
+  xhr.responseType = 'blob'
+  xhr.onload = () => {
+    console.log('LOAD', xhr.response)
+
+    const blob = xhr.response
+
+    var upload = new tus.Upload(blob, {
+      endpoint: 'https://master.tus.io/files/',
+      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)
+      }
+    })
+
+    upload.start()
+  }
+
+  xhr.onerror = (err) => { 
+    console.log(err)
+    throw err 
+  }
+  xhr.open('GET', file.uri)
+  xhr.send()
 }
 
 export default testUploadFileWithTus