Service Worker Connector for Yjs

It enables communication with a Service Worker thread. The Shared Worker can handle connections, and save changes using a persistent database (e.g. y-indexeddb), while the clients connect to the service worker leveraging improved performance. You can also set it up to perform background tasks.

• Only the Shared Worker connects to the server / other clients (less connection overhead)
• Works best with y-indexeddb
• Faster start-up when multiple windows are open
• Background tasks

Use it!

Retrieve this with bower or npm.

NPM

npm install y-serviceworker --save

Bower

bower install y-serviceworker --save

Example

// register yjs service worker
if('serviceWorker' in navigator){
  // Register service worker
  // it is important to copy yjs-sw-template to the root directory!
  navigator.serviceWorker.register('./yjs-sw-template.js').then(function(reg){
    console.log("Yjs service worker registration succeeded. Scope is " + reg.scope);
  }).catch(function(err){
    console.error("Yjs service worker registration failed with error " + err);
  })
}

// Connect to the service worker
Y({
  db: {
    name: 'memory'
  },
  connector: {
    name: 'serviceworker',
    room: 'my room name'
  },
  share: {
    textarea: 'Text' // y.share.textarea is of type Y.Text
  }
}).then(function (y) {
  // bind the textarea to a shared text element
  y.share.textarea.bind(document.getElementById('textfield'))
}

License

y-serviceworker is licensed under the MIT License.

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