New function stats

Author: Mathias

specs/app.spec.js

@@ -134,4 +134,30 @@ describe('API Routes Tests', () => {
       expect(res.headers).toHaveProperty('x-content-type-options');
     });
   });
+
+  describe('GET /api/stats', () => {
+    it('should return application statistics', async () => {
+      const res = await request(app).get('/api/stats');
+      
+      expect(res.statusCode).toBe(200);
+      expect(res.body).toHaveProperty('totalRequests');
+      expect(res.body).toHaveProperty('uptime');
+      expect(res.body).toHaveProperty('version');
+      expect(res.body).toHaveProperty('hostname');
+      expect(res.body).toHaveProperty('memory');
+      expect(res.body).toHaveProperty('nodeVersion');
+    });
+
+    it('should increment request count', async () => {
+      const res1 = await request(app).get('/api/stats');
+      const count1 = res1.body.totalRequests;
+      
+      await request(app).get('/');
+      
+      const res2 = await request(app).get('/api/stats');
+      const count2 = res2.body.totalRequests;
+      
+      expect(count2).toBeGreaterThan(count1);
+    });
+  });
 });

src/app.js

@@ -13,6 +13,31 @@ app.use(morgan('combined'));
 
 // Compteur de visites (en mémoire pour la démo)
 let visitCount = 0;
+let requestCount = 0;
+
+// Middleware pour compter les requêtes
+app.use((req, res, next) => {
+  requestCount++;
+  next();
+});
+
+app.get('/api/stats', (req, res) => {
+  const memUsage = process.memoryUsage();
+  
+  res.json({
+    totalRequests: requestCount,
+    uptime: process.uptime(),
+    version: '1.1.0',
+    hostname: process.env.HOSTNAME || 'unknown',
+    memory: {
+      rss: `${Math.round(memUsage.rss / 1024 / 1024)} MB`,
+      heapTotal: `${Math.round(memUsage.heapTotal / 1024 / 1024)} MB`,
+      heapUsed: `${Math.round(memUsage.heapUsed / 1024 / 1024)} MB`,
+      external: `${Math.round(memUsage.external / 1024 / 1024)} MB`
+    },
+    nodeVersion: process.version
+  });
+});
 
 // Routes
 app.get('/', (req, res) => {