server: consolidate services null checks to middleware

server/middleware/appendUserServices.ts

@@ -6,14 +6,24 @@ declare global {
   // eslint-disable-next-line @typescript-eslint/no-namespace
   namespace Express {
     interface Request {
-      services?: ReturnType<typeof services['getAllServices']>;
+      services: ReturnType<typeof services['getAllServices']>;
     }
   }
 }
 
-export default (req: Request, _res: Response, next: NextFunction) => {
-  if (req.user != null) {
-    req.services = services.getAllServices(req.user);
+const failedInitializeResponse = (res: Response): Response => {
+  return res.status(500).json({message: 'Flood server failed to initialze.'});
+};
+
+export default (req: Request, res: Response, next: NextFunction) => {
+  if (req.user == null) {
+    return failedInitializeResponse(res);
   }
+
+  req.services = services.getAllServices(req.user);
+  if (req.services?.clientGatewayService == null) {
+    return failedInitializeResponse(res);
+  }
+
   next();
 };