chore: rename index to server

src/server.mjs

@@ -0,0 +1,37 @@
+import mosca from 'mosca';
+
+// source: https://github.com/mcollina/mosca/wiki/Mosca-basic-usage
+
+const moscaSettings = {
+  port: 1883,
+  persistence: {
+    factory: mosca.persistence.LevelUp,
+    path: 'db',
+  },
+};
+
+const server = new mosca.Server(moscaSettings);
+
+const setup = () => {
+  console.log('Mosca server is up and running');
+
+  const message = {
+    topic: '/hello/world',
+    payload: 'abdce', // or a Buffer
+    qos: 0, // 0, 1, or 2
+    retain: true, // retain message for future subscribers
+  };
+
+  server.publish(message, () => {
+    console.log('message published!');
+  });
+};
+
+server.on('ready', setup);
+
+// fired when a message is published
+server.on('published', packet => {
+  console.log('published event', packet.retain ? '(persisted)' : '', packet.topic, packet.payload);
+});
+
+export default server;