Web, Twilio and Service Worker powered SMS Messages app

This is an implementation of an SMS Messages app that you can use with a Twilio number, with a front end built with Angular 6, enhanced with Service Worker features.

This was the demo application used at Angular Conf Melbourne, for the talk Service Worker - Beyond the cache.

Important code

Push Notifications

Check out the settings.component.ts for registering and unregistering for Push Notifications with the swPush service.

For sending Push Notifications, take a look at server/routes/index.js.

Background Sync

Check out the message.service.ts for registering for a sync event. And, once you have run npm install then patch-package will have updated ./node_modules/@angular/service-worker/ngsw-worker.js. Or you can just look at the patch in ./patches/@angular/service-worker+6.0.5.patch.

Running the application

Clone the repository and install dependencies:

$ git clone https://github.com/philnash/ng-sms-messages.git
$ cd ng-sms-messages
$ npm install

Copy .env.example to .env and fill in the your Twilio account credentials and the Twilio number you want to use. You can find your Account SID and Auth Token in your Twilio account portal.

$ cp .env.example .env

You also need to generate VAPID keys for your application. You can do so with:

$ npx web-push generate-vapid-keys

Add the public key to your src/environment.prod.ts file.

Then start the application. You can run it in development mode with

$ npm run dev

This will start the front end on http://localhost:4200

To use the service worker functionality, you need to create a production build and serve it. The script to perform this is:

$ npm run server

Navigate to http://localhost:3000 and you will see the application.