generate app with sample to show electrode server startup events

packages/generator-electrode/generators/app/templates/src/server/index.js

@@ -11,14 +11,40 @@ const support = require("electrode-archetype-react-app/support");
 
 //<% if (isHapi) { %>
 const staticPathsDecor = require("electrode-static-paths");
-const startServer = config => require("electrode-server")(config, [staticPathsDecor()]);
+const electrodeServer = require("electrode-server");
+
+//
+// sample to show electrode server startup events
+// https://github.com/electrode-io/electrode-server#listener-function
+//
+function setupElectrodeServerEvents(emitter) {
+  emitter.on("config-composed", (data, next) => next());
+  emitter.on("server-created", (data, next) => next());
+  emitter.on("connection-set", (data, next) => next());
+  emitter.on("plugins-sorted", (data, next) => next());
+  emitter.on("plugins-registered", (data, next) => next());
+  emitter.on("server-started", (data, next) => next());
+  emitter.on("complete", (data, next) => next());
+}
+
+const startServer = config => {
+  const decor = staticPathsDecor();
+  if (!config.listener) config.listener = setupElectrodeServerEvents;
+  return electrodeServer(config, [decor]);
+};
+
 //<% } else if (isExpress) { %>
 const startServer = config => require("./express-server")(config);
 //<% } else { %>
 const startServer = config => require("./koa-server")(config);
 //<% } %>
 
-support.load().then(() => {
-  const config = electrodeConfippet.config;
-  return startServer(config);
-});
+module.exports = () =>
+  support.load().then(() => {
+    const config = electrodeConfippet.config;
+    return startServer(config);
+  });
+
+if (require.main === module) {
+  module.exports();
+}