Rn-fetch-blob: [Error: Download manager download failed, the file does not downloaded to destination.]

[adityakmr7]

I am trying to donwload image Here image do get to destination folder but the problem is it gives error saying

[Error: Download manager download failed, the file does not downloaded to destination.]

• "react-native": "0.63.0",
  *"rn-fetch-blob": "^0.12.0"

Code Snippets

const checkPermission = async (image: string) => {
    if (Platform.OS === 'android') {
      try {
        const granted = await PermissionsAndroid.request(
          PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
          {
            title: 'Storage Permission Required',
            message: 'This app needs access to your storage to download Photos',
            buttonPositive: 'OK',
          },
        );
        if (granted === PermissionsAndroid.RESULTS.GRANTED) {
          console.log('Storage Permission Granted.');
          handleDownload(image);
        } else {
          Alert.alert('Storage Permission Not Granted');
        }
      } catch (err) {
        console.warn(err);
      }
    }
  };
  const getExtention = (filename: string) => {
    //To get the file extension
    return /[.]/.exec(filename) ? /[^.]+$/.exec(filename) : undefined;
  };

  const handleDownload = async (image: string) => {
    let date = new Date();
    let image_url = image;
    let ext = getExtention(image_url);

    const {config, fs} = RNFetchBlob;
    let pictureDir = fs.dirs.PictureDir;
    let options = {
      fileCache: true,
      addAndroidDownloads: {
        useDownloadManager: true,
        notification: true,
        path: 
         pictureDir +
         '/wallace_' +
         Math.floor(date.getTime() + date.getSeconds() / 2) +
        '.' +
         ext,
        description: 'Image',
      },
    };
    config(options)
      .fetch('GET', image_url)
      .then((res) => res.json())
      .then((res) => {
        console.log(res.path());
        Alert.alert('Image Downloaded Successfully.');
      })
      .catch((err) => {
        console.log(err);
        // Alert.alert('Download Failed', err.message);
      });
  };

[hegdeMadan]

check your buildToolVersion and sdkVersion, if it's 29 then downgrade them to 28 or or upgrade versions in node_modules/rn-fetch-blob/android/build.gradle to 29 as well. I had the same permission issues to copy files.

[sonisourabh]

I have also faced the similar issue i.e. write file on documentDir simply crashed for me. My project configuration is:

• Android sdk 29
• React Native 0.63.2

I found a workaround in Android documentation, which is, add android:requestLegacyExternalStorage="true" in AndroidManifest.xml file:

<application android:requestLegacyExternalStorage="true" ...

Reference: https://developer.android.com/reference/android/R.attr#requestLegacyExternalStorage

Hope that this will be useful for some of you who are struggling with crash/failure of rn-fetch-blob with Android sdk 29

[aftabaminzoobiapps]

I have an issue. I am downloading a video file that is downloading to all other folders for example Downloads, Music, but through an error.

unsupported path /storage/emulated/0/VideoDownloader/TikTok/TIKTOKVIDEO .

` const normaldownload = dispatch => async (url, foldername , name_prefix) =>{

    let mydirs = RNFetchBlob.fs.dirs.SDCardDir
      var date = new Date()
      let checkdir = await RNFetchBlob.fs.isDir(`${mydirs}/VideoDownloader/${foldername}`);
        if(!checkdir){
          RNFetchBlob.fs.mkdir(`${mydirs}/VideoDownloader/${foldername}`).then((res) =>{
            console.log('created', res)
          }).catch((error) =>{
                console.log('Error', error)
          })
        }else{
            console.log("Dir existss")
        }


        try{  
          let options = {
            fileCache: true,
            addAndroidDownloads : {
              useDownloadManager :true, // setting it to true will use the device's native download manager and will be shown in the notification bar.
              notification : true,
              mime : 'video/mp4',
              description : 'Downloading Video',
              path:  mydirs+`/VideoDownloader/${foldername}/${name_prefix}`+Math.floor(date.getTime() + date.getSeconds() / 2) + '.mp4', // this is the path where your downloaded file will live in
            }
          }
          PermissionsAndroid.request(
            PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,{
              title: "Storage",
              message: "This app would like to store some files on your phone"
            }).then( async () => {  
                RNFetchBlob.config(options).fetch('GET', url).then((res) => {
                  console.log('path of the downloads ')
                  ToastAndroid.showWithGravityAndOffset(
                    `File Saved in VideoDownloader/${foldername}😃 `,
                    ToastAndroid.LONG,
                    ToastAndroid.BOTTOM,
                    25,
                    50
                  )
                }).catch((error) =>{
                  console.log(error,'ERRRROR')
                  ToastAndroid.showWithGravityAndOffset(
                    `Download Failed`,
                    ToastAndroid.LONG,
                    ToastAndroid.BOTTOM,
                    25,
                    50
                  );
              })
            })
    }
    catch(error){
      console.log("Error in catch " , error)
    }
  }

`

The above code WOrking fine on android 9 ad less but it through Error on android 10.
I have already added this line.
android:requestLegacyExternalStorage="true"

Still no improvement.

[praveenreddy9]

I am trying to donwload image Here image do get to destination folder but the problem is it gives error saying

[Error: Download manager download failed, the file does not downloaded to destination.]

• "react-native": "0.63.0",
  *"rn-fetch-blob": "^0.12.0"

Code Snippets

const checkPermission = async (image: string) => {
    if (Platform.OS === 'android') {
      try {
        const granted = await PermissionsAndroid.request(
          PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE,
          {
            title: 'Storage Permission Required',
            message: 'This app needs access to your storage to download Photos',
            buttonPositive: 'OK',
          },
        );
        if (granted === PermissionsAndroid.RESULTS.GRANTED) {
          console.log('Storage Permission Granted.');
          handleDownload(image);
        } else {
          Alert.alert('Storage Permission Not Granted');
        }
      } catch (err) {
        console.warn(err);
      }
    }
  };
  const getExtention = (filename: string) => {
    //To get the file extension
    return /[.]/.exec(filename) ? /[^.]+$/.exec(filename) : undefined;
  };

  const handleDownload = async (image: string) => {
    let date = new Date();
    let image_url = image;
    let ext = getExtention(image_url);

    const {config, fs} = RNFetchBlob;
    let pictureDir = fs.dirs.PictureDir;
    let options = {
      fileCache: true,
      addAndroidDownloads: {
        useDownloadManager: true,
        notification: true,
        path: 
         pictureDir +
         '/wallace_' +
         Math.floor(date.getTime() + date.getSeconds() / 2) +
        '.' +
         ext,
        description: 'Image',
      },
    };
    config(options)
      .fetch('GET', image_url)
      .then((res) => res.json())
      .then((res) => {
        console.log(res.path());
        Alert.alert('Image Downloaded Successfully.');
      })
      .catch((err) => {
        console.log(err);
        // Alert.alert('Download Failed', err.message);
      });
  };

At Path just replace .png or your image type at ext and after it's downloaded it will direclty show in Images
ex:
path: PictureDir + '/image_' + Math.floor(date.getTime() + date.getSeconds() / 2) + ext,
path: PictureDir + '/image_' + Math.floor(date.getTime() + date.getSeconds() / 2) + '.png' ==>It works

This worked for me.