Create

https://firebase.google.com/docs/storage/web/upload-files

On React client

const handleUpload = () => {
const selectedFile = selectedFiles[0];
// Create a root reference
const storageRef = firebase.storage().ref();
// Create a reference to 'mountains.jpg'
const fileRef = storageRef.child('test.txt');
const uploadTask = fileRef.put(selectedFile).then(function(snapshot) {
// TODO: add some kind of alert confirming upload of file
// TODO: when choosing file, have a upload option?
console.log('Uploaded a blob or file!', snapshot);
});
// uploaded file
setShowNotice(true);
};

With progress bar upload indication

const handleUpload = () => {
const selectedFile = selectedFiles[0];
// Create a root reference
const storageRef = firebase.storage().ref();
// Create a reference to 'mountains.jpg'
const fileRef = storageRef.child('test.txt');
const uploadTask = fileRef.put(selectedFile).then(function(snapshot) {
// TODO: add some kind of alert confirming upload of file
// TODO: when choosing file, have a upload option?
console.log('Uploaded a blob or file!', snapshot);
});
// https://firebase.google.com/docs/storage/web/upload-files
// Listen for state changes, errors, and completion of the upload.
uploadTask.on(
firebase.storage.TaskEvent.STATE_CHANGED, // or 'state_changed'
function(snapshot) {
setIsUploading(true);
// Get task progress, including the number of bytes uploaded and the total number of bytes to be uploaded
var progress = (snapshot.bytesTransferred / snapshot.totalBytes) * 100;
console.log("Upload is " + progress + "% done");
// TODO: function to update progress bar using percentage
setUploadProgress(progress);
switch (snapshot.state) {
case firebase.storage.TaskState.PAUSED: // or 'paused'
console.log("Upload is paused");
break;
case firebase.storage.TaskState.RUNNING: // or 'running'
console.log("Upload is running");
break;
default:
console.error('Error with upload to firebase');
break;
}
},
// error handling
function(error) {
setIsUploading(false);
// A full list of error codes is available at
// https://firebase.google.com/docs/storage/web/handle-errors
switch (error.code) {
case "storage/unauthorized":
// User doesn't have permission to access the object
console.error(error.code);
break;
case "storage/canceled":
// User canceled the upload
console.error(error.code);
break;
case "storage/unknown":
// Unknown error occurred, inspect error.serverResponse
console.error(error.code);
break;
default:
console.error('Error with upload to firebase', error);
break;
}
},
// upload completed
function() {
// Upload completed successfully, now we can get the download URL
uploadTask.snapshot.ref.getDownloadURL().then(function(downloadURL) {
// upload file
setShowNotice(true);
console.log("File available at", downloadURL);
setDownloadURL(downloadURL);
});
}
);
// uploaded file
setShowNotice(true);
};

How does Firebase associate uploaded files with a specific user?

Create a reference to a Cloud Storage document in Firestore

TODO: add logic to do progress bar of file