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assets/webapps/music.gaiamobile.org/js/services/artists.js

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+/* exported ArtistsService */
+/* global Response, ServiceWorkerWare, bridge */
+'use strict';
+
+importScripts('components/bridge/client.js');
+
+var client = bridge.client({
+  service: 'music-service',
+  endpoint: new BroadcastChannel('music-service')
+});
+
+function ArtistsService(worker) {
+  var stopAfter = ServiceWorkerWare.decorators.stopAfter;
+
+  worker.get('/api/artists/list', stopAfter((request) => {
+    return new Promise((resolve) => {
+      client.method('getArtists')
+        .then(artists => resolve(respond(artists)));
+    });
+  }));
+
+  worker.get('/api/artists/info/:filePath', stopAfter((request) => {
+    return new Promise((resolve) => {
+      var filePath = decodeURIComponent(request.parameters.filePath);
+      client.method('getArtist', filePath)
+        .then(songs => resolve(respond(songs)))
+        .catch((error) => {
+          resolve(new Response('', { status: 404 }));
+        });
+    });
+  }));
+
+  function respond(response) {
+    return new Response(JSON.stringify(response), {
+      headers: { 'Content-Type': 'application/json' }
+    });
+  }
+}