chore(modernize): Modernize HealthCheckController

lib/routes/health-check.js

@@ -1,24 +1,31 @@
 'use strict';
 
-const logger = require('../logger')('health-check.js');
 const { Router } = require('express');
+const logger = require('../logger')('health-check.js');
 
-exports.router = function(config) {
-    const router = Router();
+class HealthCheckController {
+    constructor(config) {
+        const app = Router();
 
-    router.get('/', (req, res) => {
-        config.stores.db
-            .select(1)
-            .from('features')
-            .then(() => res.json({ health: 'GOOD' }))
-            .catch(err => {
-                logger.error(
-                    'Could not select from features, error was: ',
-                    err
-                );
-                res.status(500).json({ health: 'BAD' });
-            });
-    });
+        this.app = app;
+        this.db = config.stores.db;
 
-    return router;
-};
+        app.get('/', (req, res) => this.index(req, res));
+    }
+
+    async index(req, res) {
+        try {
+            await this.db.select(1).from('features');
+            res.json({ health: 'GOOD' });
+        } catch (e) {
+            logger.error('Could not select from features, error was: ', e);
+            res.status(500).json({ health: 'BAD' });
+        }
+    }
+
+    router() {
+        return this.app;
+    }
+}
+
+module.exports = HealthCheckController;

lib/routes/index.js

@@ -10,13 +10,13 @@ const adminApi = require('./admin-api');
 const clientApi = require('./client-api');
 const clientFeatures = require('./client-api/feature.js');
 
-const health = require('./health-check');
+const HealthCheckController = require('./health-check');
 const backstage = require('./backstage.js');
 
 exports.router = function(config) {
     const router = Router();
 
-    router.use('/health', health.router(config));
+    router.use('/health', new HealthCheckController(config).router());
     router.use('/internal-backstage', backstage.router(config));
 
     router.get('/api', (req, res) => {

lib/server-impl.js

@@ -2,6 +2,7 @@
 
 const { EventEmitter } = require('events');
 
+const logFactory = require('./logger');
 const logger = require('./logger')('server-impl.js');
 const migrator = require('../migrator');
 const getApp = require('./app');
@@ -21,8 +22,9 @@ function createApp(options) {
         {
             stores,
             eventBus,
+            logFactory,
         },
-        options
+        options,
     );
 
     const app = getApp(config);
@@ -34,7 +36,7 @@ function createApp(options) {
     );
 
     const server = app.listen({ port: options.port, host: options.host }, () =>
-        logger.info(`Unleash started on port ${server.address().port}`)
+        logger.info(`Unleash started on port ${server.address().port}`),
     );
 
     return new Promise((resolve, reject) => {