Expo File System pauseAsync gives error 'No download object available'

[rafaysaleem]

1. SDK Version: 35.0.0
2. Platforms(Android/iOS/web/all): Android

I am using the expo-file-system to create a resumable download. I am using the same example as in the expo documentation.

FileSystem - Expo Documentation

The download part is working good. It downloads the file and gives progress along the way. But when I try to us the pauseAsync function it gives the error.

‘No download object available’

export default function App() {
const [downloadProgress,setDownloadProgress] = useState({})

const callback = downloadProgress => {
const progress = downloadProgress.totalBytesWritten / downloadProgress.totalBytesExpectedToWrite;
console.log(progress);
setDownloadProgress(progress)
};

const downloadResumable = FileSystem.createDownloadResumable(
'http://techslides.com/demos/sample-videos/small.mp4',
FileSystem.documentDirectory + 'small.mp4',
{},
callback
);

startDownload = async() =>{

try {
  const { uri } = await downloadResumable.downloadAsync();
  console.log('Finished downloading to ', uri);
} catch (e) {
  console.error(e);
}
}

pauseDownload = async() =>{
try {
  await downloadResumable.pauseAsync();
  console.log('Paused download operation, saving for future retrieval');
  AsyncStorage.setItem('pausedDownload', JSON.stringify(downloadResumable.savable()));
} catch (e) {
  console.error(e);
}
}


return (
<View style={{    flex: 1,backgroundColor: '#fff',alignItems: 'center',justifyContent: 'center',marginTop: 20}}>
  <TouchableNativeFeedback onPress = {this.startDownload}>
    <View style={{alignItems:'center',justifyContent:'center',height:50,width:100,backgroundColor:'#00f',marginBottom:2}}>
      <Text style={{color:'#fff'}}>Download</Text>
    </View>
  </TouchableNativeFeedback>

  <TouchableNativeFeedback onPress = {this.pauseDownload}>
    <View style={{alignItems:'center',justifyContent:'center',height:50,width:100,backgroundColor:'#00f',marginBottom:2}}>
      <Text style={{color:'#fff'}}>Pause</Text>
    </View>
  </TouchableNativeFeedback>
</View>
);
}

[adamjnav]

Hey @rafaysaleem,

Could you package this up into a Snack that reproduces the issue so that we can reliably test it on our end?

Cheers,
Adam