I am using the flutter_sound package to record and play audio. On Flutter Web, on stopping the recording the recorder returns a path/URL of this type: blob:http://localhost:63986/b60f31ce-b94d-48c8-8a4a-2d939effe6d8
I want to upload the audio recording to Firebase Storage but dart.io can't be used for flutter-web so can't use the File method. Even after searching, I didn't find a way to achieve it. I don't know how to proceed. How can I write the audio to file and upload it to firebase?
My Code:
import 'dart:html' as html;
import 'dart:io' as io;
final recorder = FlutterSoundRecorder();
final player = FlutterSoundPlayer();
String fileName;
@override
void initState() {
super.initState();
initRecorder();
}
@override
void dispose() {
recorder.closeRecorder();
player.closePlayer();
super.dispose();
}
Future<void> initRecorder() async {
if (!kIsWeb) {
final status = await Permission.microphone.request();
if (status != PermissionStatus.granted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Grant Permission form mic first!')),
);
}
}
await recorder.openRecorder();
await player.openPlayer();
recorder.setSubscriptionDuration(Duration(milliseconds: 500));
}
Future<void> record() async {
fileName = DateTime.now().toString();
await recorder.startRecorder(toFile: fileName);
}
Future<void> stop() async {
path = await recorder.stopRecorder();
if (kIsWeb) {
if (path == null) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Grant Permission for mic first!')),
);
} else {
// Get File from path and upload it to Firebase
print(path);
// not working for Web
// final audioFile = io.File(path);
// html.File() doesn't take path/Url as parameter but
// File(List<Object> fileBits, String fileName,[Map? options])
/*
await FirebaseStorage.instance
.ref()
.child('users/uploads/$fileName.mp3')
.putData(file!.bytes!);*/
}
} else if (!kIsWeb) {
if (path == null) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Grant Permission for mic first!')),
);
} else {
//final audioFile = io.File(path);
// await FirebaseStorage.instance
// .ref()
// .child('users/uploads/$fileName.mp3')
// .putFile(audioFile);
}
}
}
I've been working on this for days, and I finally figured it out!
When you call
startRecorder(toFile: audioLocation)
,audioLocation
will be the location of the file after you callstopRecorder()
, stored inhtml.window.sessionStorage
(html
as inimport 'dart:html' as html;
).So you need to add
import 'package:http/http.dart' as http;
, create afileName
(whatever you want the file to be called in Firebase Storage), and then insert the following piece of code.This might not be the best way, but it is the way I finally got it to work! Good luck!!