I am having an issue concerning uploading images to firebase but using web version 9. I am following along with a toturial on one of the platforms in which he is building a facebook clone. and I am stuck in this part of firebase uploading images and files... I checked the documentations of firebase and i tried to figure out to should be changed, but I couldn't do it. What I want is to convert the firebase code from the old version to the newest one web V9. This is my code but in the previous version:
import { useSession } from 'next-auth/client';
import { useRef, useState } from 'react';
import { db, storage } from '../firebase';
import firebase from 'firebase';
function InputBox() {
const [session] = useSession();
const inputRef = useRef(null);
const filepickerRef = useRef(null);
const[imageToPost, setImageToPost] = useState(null);
const sendPost = (e) => {
e.preventDefault();
if (!inputRef.current.value) return;
db.collection('posts').add({
message: inputRef.current.value,
name: session.user.name,
email: session.user.email,
image: session.user.image,
timestamp: firebase.firestore.FieldValue.serverTimestamp()
}).then(doc => {
if (imageToPost) {
const uploadTask = storage.ref(`posts/${doc.id}`).putString(imageToPost, 'data_url')
removeImage();
uploadTask.on('state_change', null, error => console.error(error),
() => {
//When the upload completes
storage.ref(`posts`).child(doc.id).getDownloadURL().then(url => {
db.collection('posts').doc(doc.id).set({
postImage: url
},
{ merge: true}
);
});
});
}
});
inputRef.current.value = "";
};
const addImageToPost = (e) => {
const reader = new FileReader();
if (e.target.files[0]) {
reader.readAsDataURL(e.target.files[0]);
}
reader.onload = (readerEvent) => {
setImageToPost(readerEvent.target.result);
};
};
const removeImage = () => {
setImageToPost(null);
};
return (here is my jsx)
CodePudding user response:
if your firebaseConfig is okay, then this should work!
import { setDoc, doc } from "firebase/firestore";
import { ref, uploadString, getDownloadURL, getStorage } from "firebase/storage";
if (imageToPost) {
const storage = getStorage();
const storageRef = ref(storage, `posts/${docum.id}`);
const uploadTask = uploadString(storageRef, imageToPost, 'data_url');
uploadTask.on('state_changed', null,
(error) => {
alert(error);
},
() => {
getDownloadURL(uploadTask.snapshot.ref)
.then((URL) => {
setDoc(doc(db, "posts", docum.id), { postImage:URL }, { merge: true});
});
}
)
removeImage();
};
CodePudding user response:
Actually everything is detailed in the documentation.
To replace the uploadTask
definition
const uploadTask = storage.ref(`posts/${doc.id}`).putString(imageToPost, 'data_url')
do
import { getStorage, ref, uploadString, getDownloadURL } from "firebase/storage";
const storage = getStorage();
const storageRef = ref(storage, `posts/${doc.id}`);
const message = 'This is my message.';
const uploadTask = uploadString(storageRef, imageToPost, 'data_url');
and to replace the upload monitoring block, do
import { doc, setDoc } from "firebase/firestore";
uploadTask.on('state_changed',
null
(error) => {
// ...
},
() => {
getDownloadURL(uploadTask.snapshot.ref).then((downloadURL) => {
setDoc(doc(db, "posts", doc.id), { postImage: url }, { merge: true});
});
}
);
Note that the UploadTask
object behaves like a Promise, and resolves with its snapshot data when the upload completes, so you can also do uploadTask.then()
if you are just interested by the complete event.