Add audit stats endpoint and integrate Recharts for dashboard visualizations: Implement a new API route for aggregated audit statistics in the backend, enhance the DashboardHome component to display these stats, and utilize Recharts for visual representation of service availability metrics, improving user insights into platform performance.

Author: Yohan-Christmith

backend/src/server.ts

@@ -49,6 +49,53 @@ app.get("/api/sla/metrics", async (_req: Request, res: Response) => {
   }
 });
 
+/** Proxy to Gateway audit stats (aggregated counts for dashboard overview) */
+app.get("/api/audit/stats", async (_req: Request, res: Response) => {
+  try {
+    const r = await fetch(`${GATEWAY_URL}/api/audit/stats`, { headers: { Accept: "application/json" } });
+    const text = await r.text();
+    if (!r.ok) {
+      try {
+        return res.status(r.status).json(JSON.parse(text));
+      } catch {
+        return res.status(r.status).json({ error: "Gateway error", body: text.slice(0, 200) });
+      }
+    }
+    try {
+      res.json(JSON.parse(text));
+    } catch {
+      res.status(503).json({
+        error: "Gateway returned invalid response",
+        totalRequests: 0,
+        get: 0,
+        post: 0,
+        put: 0,
+        patch: 0,
+        delete: 0,
+        other: 0,
+        granted: 0,
+        denied: 0,
+        timestamp: new Date().toISOString(),
+      });
+    }
+  } catch (e) {
+    console.error("Audit stats proxy error:", e);
+    res.status(503).json({
+      error: "Gateway unavailable",
+      totalRequests: 0,
+      get: 0,
+      post: 0,
+      put: 0,
+      patch: 0,
+      delete: 0,
+      other: 0,
+      granted: 0,
+      denied: 0,
+      timestamp: new Date().toISOString(),
+    });
+  }
+});
+
 /** Proxy to Gateway request audit log (who requested what, granted/denied) */
 app.get("/api/audit/recent", async (req: Request, res: Response) => {
   try {