package.json

{
  "dependencies": {
    "node-fetch": "^2.6.9",
    "remotestoragejs": "2.0.0-beta.6"
  }
}

rs-issue-1288.js

console.log('=============================================');

global.fetch = require('node-fetch');

const RemoteStorage = require('remotestoragejs');

const mod = {

  async alfa () {
    var Bookmarks = { name: 'bookmarks', builder: function(privateClient, publicClient) {
      return {
        exports: {
          addBookmark: function(bookmark) {
            return privateClient.storeFile('application/json', bookmark.id, bookmark);
          }
        }
      }
    }};

    const remoteStorage = new RemoteStorage({
      modules: [ Bookmarks ],
      logging: true
    });

    'ready,not-connected,connected,disconnected,error,features-loaded,connecting,authing,wire-busy,wire-done,sync-req-done,sync-done,network-offline,network-online,sync-interval-change'.split(',').forEach(function (e) {
      remoteStorage.on(e, function() {
        console.log('did emit ' + e);
      });
    });

    remoteStorage.access.claim('bookmarks', 'rw');
    remoteStorage.caching.enable('/');

    remoteStorage.on('ready', async () => {
      await remoteStorage.bookmarks.addBookmark({
        id: 'alfa',
        url: 'http://unhosted.org',
        description: 'Unhosted Adventures',
        tags: ['unhosted', 'remotestorage', 'no-backend']
      }).then(res => {
        console.log('did write', res);
      });

      const bookmarks = await remoteStorage.scope('/bookmarks/').getAll('');
      console.log(bookmarks);
    })
  }
};

mod.alfa();