Download files from firebase storage using ReactJs - reactjs

Question

Succesfully i have made to Upload files into firebase storage, but now i want to display all files in table and to have option to download each file.I've read the documentation in firebase but it won't work.When i click the button which function is to get all files and the i want to visualize them in table which users can see:
Show file function:
showFileUrl(){
storageRef.child('UploadedFiles/').listAll().then(function(res) {
res.items.forEach(function(folderRef) {
console.log("folderRef",folderRef.toString());
var blob = null;
var xhr = new XMLHttpRequest();
xhr.open("GET", "downloadURL");
xhr.responseType = "blob";
xhr.onload = function()
{
blob = xhr.response;//xhr.response is now a blob object
console.log(blob);
}
xhr.send();
});
}).catch(function(error) {
});
}
This is log of the network which i found when debugging.What i need to do to get all data and visualize it in table and to hava a download button and when is pressed to download the file
Network log:
Storage in firebase:
Blob object of the files:

Answer 1

Your code gets a list of all the files, but it doesn't actually to anything to read the data for each file.
When using the Web client SDK, the only way to get the data for a file is through a download URL as shown here. So you'll need to:
Loop through all the files you get back from listAll() (you're already doing this).
Call `getDownloadURL as shown here, to get a download URL for each file.
Then use another library/function (such as fetch()/XMLHTTPRequest) to read the data for each file.
Alternatively, if your files are images, you can stuff the download URL in an img tag as the preview.