Ckeditor custom File Upload Adapter for Firebase not working - reactjs

Question

I am working on a project that need to store images on Firebase storage. I use Ckeditor to upload image, I follow Ckeditor's docs to write my own image upload adapter, but it din't not work. I cannot upload image to firebase and get back the image url. here is what I've tried
class MyUploadAdapter {
constructor(loader) {
this.loader = loader;
}
upload() {
return this.loader.file
.then(file => new Promise((resolve, reject) => {
this._initRequest();
this._initListeners(resolve, reject, file);
this._sendRequest(file);
}));
}
abort() {
if (this.xhr) {
this.xhr.abort();
}
}
_initRequest() {
const xhr = this.xhr = new XMLHttpRequest();
xhr.open('POST', 'https://firebasestorage.googleapis.com/v0/b/smart-farming-e3e2d.appspot.com/o/images/', true);
xhr.responseType = 'json';
}
// Initializes XMLHttpRequest listeners.
_initListeners(resolve, reject, file) {
const xhr = this.xhr;
const loader = this.loader;
const genericErrorText = `Couldn't upload file: ${file.name}.`;
xhr.addEventListener('error', () => reject(genericErrorText));
xhr.addEventListener('abort', () => reject());
xhr.addEventListener('load', () => {
const response = xhr.response;
if (!response || response.error) {
return reject(response && response.error ? response.error.message : genericErrorText);
}
resolve({
default: response.url
});
});
if (xhr.upload) {
xhr.upload.addEventListener('progress', evt => {
if (evt.lengthComputable) {
loader.uploadTotal = evt.total;
loader.uploaded = evt.loaded;
}
});
}
}
_sendRequest(file) {
const data = new FormData();
data.append('upload', file);
this.xhr.send(data);
}
}
function MyCustomUploadAdapterPlugin(editor) {
editor.plugins.get('FileRepository').createUploadAdapter = (loader) => {
return new MyUploadAdapter(loader);
};
}
const editorConfiguration = {
extraPlugins: [MyCustomUploadAdapterPlugin],
};
and I call it to use in my Component like this
<CKEditor
editor={ClassicEditor}
// data="<p>Hello from CKEditor 5!</p>"
onInit={editor => {
// console.log('Editor is ready to use!', editor);
}}
onChange={(event, editor) => {
const data = editor.getData();
console.log({ event, editor, data });
}}
config={editorConfiguration}
/>
Can anyone have experience with upload image from Ckeditor to firebase storage help me? Thanks u.

Answer 1

I have also been trying to fix this for ages now. I have now been able to upload an image to my server by adding CORS to the FireBase URL
xhr.open('POST', `https://cors-anywhere.herokuapp.com/https://firebasestorage.googleapis.com/v0/b/smart-farming-e3e2d.appspot.com/o/${file.name}`, true);
If you are wondering how I got the file attribute you need to pass it in the function
_initRequest(file) {
console.log(file.name)
const xhr = this.xhr = new XMLHttpRequest();
xhr.open('POST', `https://cors-anywhere.herokuapp.com/FIREBASE_URL_HERE{file.name}`, true);
xhr.responseType = 'json';
}
This should now upload your image to your Firebase storage