如何上传和保存图像ckeditor5

Question

如何上传和保存ckeditor5图片？ 这是我的代码。

ClassicEditor.create( document.querySelector( '#editor5' ), {

      ckfinder: {
            uploadUrl: '/inserimage'
        }   
         })
    .then( newEditor => {
        editor = newEditor;
    } )

    .catch( error => {
        console.log( error );
    } );

    document.querySelector( '#submit' ).addEventListener( 'click', () => {
    const editorData = editor.getData();
    console.log(editorData);
});