How to upload a image url downloaded from firebase storage to firestore document for newly registered user? - flutter

Question

I have made it till uploading the image to firebase storage and download the url.Here, I need to store the newly registered user information in an Firestore document. I am storing some details one of those is the image URL downloaded from firebase storage.
Now, I need to assign the downloaded Url to Firestore to access it in my dart pages.
uploadImage() async {
var random = Random(25);
final StorageReference fireref = FirebaseStorage.instance
.ref()
.child('profilepics/${random.nextInt(5000).toString()}.jpg');
StorageUploadTask task = fireref.putFile(profilepic);
StorageTaskSnapshot snapshottask = await task.onComplete;
String downloadUrl = await snapshottask.ref.getDownloadURL();
if (downloadUrl != null) {
userManagement.addProfilePic(downloadUrl.toString()).then((val) {
Navigator.of(context).pushReplacementNamed('/twelf');
});
}
}
The above is the code of getting the image url from firebase storage.And, If you can see I have called a method addProfilePic to add the downloaded URL to firestore. And the method is,
Future addProfilePic(picUrl) async {
//---
}
What Should i write in this method to upload url to firestore. I am not able to understand.
Additional code for understanding:
class UserManagement {
storeNewUser(user, context) {
Firestore.instance.collection('/userdetails').add({
'Email': user.email,
'uid': user.uid,
'displayName': user.fullname,
'photoUrl': user.photoUrl
}).then((value) {
Navigator.of(context).pop();
Navigator.of(context).pushReplacementNamed('/selectpic');
}).catchError((e) {
print(e);
});
}
And the below code is near registration the final code that upload data to firestore:
final String userId = await widget.auth
.createUserWithEmailAndPassword(_email, _password)
.then((signedInUser) async {
var userUpdateInfo = new UserUpdateInfo();
userUpdateInfo.displayName = _fullname;
userUpdateInfo.photoUrl = _imageurl;
//'https://cdn.mos.cms.futurecdn.net/QjuZKXnkLQgsYsL98uhL9X-1024-80.jpg';
final user = await FirebaseAuth.instance.currentUser();
user.updateProfile(userUpdateInfo).then((user) {
FirebaseAuth.instance
.currentUser()
.then(
(user) => {UserManagement().storeNewUser(user, context)})
.catchError((e) {
print(e);
});
}).catchError((e) {
print(e);
});
}).catchError((e) {
print(e);
});
print('Registered user: $userId');
}

Answer 1

Try this:
Future<String> uploadImage(profilepic) async {
StorageUploadTask uploadTask = storageRef.child("profilepics/${random.nextInt(5000).toString()}.jpg").putFile(profilepic);
StorageTaskSnapshot storageTaskSnapshot = await uploadTask.onComplete;
String downlaodUrl = await storageTaskSnapshot.ref.getDownloadURL();
return downlaodUrl;
}
// String imageUrl = await uploadImage(profilepic); You can store the value of imageUrl in firebase document.
Firestore.instance.collection('/userdetails').add({
// All fields you want to have in a document
'photoUrl': imageUrl; // use the image url variable
});
/// To update a currentUser document
Firestore.instance.collection('/userdetails')
.document(your_user_document_name_here)
.updateData({
// All fields you want to update in a document
'photoUrl': imageUrl; // use the image url variable
});