feat: frontend first routing implementation

modules/frontend/package-lock.json

@@ -10,7 +10,8 @@
       "dependencies": {
         "axios": "^1.12.2",
         "react": "^19.1.1",
-        "react-dom": "^19.1.1"
+        "react-dom": "^19.1.1",
+        "react-router-dom": "^7.9.4"
       },
       "devDependencies": {
         "@eslint/js": "^9.36.0",
@@ -2061,6 +2062,15 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cookie": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-1.0.2.tgz",
+      "integrity": "sha512-9Kr/j4O16ISv8zBBhJoi4bXOYNTkFLOqSL3UDB0njXxCXNezjeyVrJyGOWtgfs/q2km1gwBcfH8q1yEGoMYunA==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -3346,6 +3356,7 @@
       "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-19.2.0.tgz",
       "integrity": "sha512-UlbRu4cAiGaIewkPyiRGJk0imDN2T3JjieT6spoL2UeSf5od4n5LB/mQ4ejmxhCFT1tYe8IvaFulzynWovsEFQ==",
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "scheduler": "^0.27.0"
       },
@@ -3363,6 +3374,44 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/react-router": {
+      "version": "7.9.4",
+      "resolved": "https://registry.npmjs.org/react-router/-/react-router-7.9.4.tgz",
+      "integrity": "sha512-SD3G8HKviFHg9xj7dNODUKDFgpG4xqD5nhyd0mYoB5iISepuZAvzSr8ywxgxKJ52yRzf/HWtVHc9AWwoTbljvA==",
+      "license": "MIT",
+      "dependencies": {
+        "cookie": "^1.0.1",
+        "set-cookie-parser": "^2.6.0"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      },
+      "peerDependenciesMeta": {
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/react-router-dom": {
+      "version": "7.9.4",
+      "resolved": "https://registry.npmjs.org/react-router-dom/-/react-router-dom-7.9.4.tgz",
+      "integrity": "sha512-f30P6bIkmYvnHHa5Gcu65deIXoA2+r3Eb6PJIAddvsT9aGlchMatJ51GgpU470aSqRRbFX22T70yQNUGuW3DfA==",
+      "license": "MIT",
+      "dependencies": {
+        "react-router": "7.9.4"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      },
+      "peerDependencies": {
+        "react": ">=18",
+        "react-dom": ">=18"
+      }
+    },
     "node_modules/resolve-from": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
@@ -3466,6 +3515,12 @@
         "semver": "bin/semver.js"
       }
     },
+    "node_modules/set-cookie-parser": {
+      "version": "2.7.1",
+      "resolved": "https://registry.npmjs.org/set-cookie-parser/-/set-cookie-parser-2.7.1.tgz",
+      "integrity": "sha512-IOc8uWeOZgnb3ptbCURJWNjWUPcO3ZnTTdzsurqERrP6nPyv+paC55vJM0LpOlT2ne+Ix+9+CRG1MNLlyZ4GjQ==",
+      "license": "MIT"
+    },
     "node_modules/shebang-command": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-2.0.0.tgz",

modules/frontend/package.json

@@ -12,7 +12,8 @@
   "dependencies": {
     "axios": "^1.12.2",
     "react": "^19.1.1",
-    "react-dom": "^19.1.1"
+    "react-dom": "^19.1.1",
+    "react-router-dom": "^7.9.4"
   },
   "devDependencies": {
     "@eslint/js": "^9.36.0",

modules/frontend/src/App.tsx

@@ -1,8 +1,15 @@
 import React from "react";
+import { BrowserRouter as Router, Routes, Route } from "react-router-dom";
 import UserPage from "./components/UserPage/UserPage";
 
 const App: React.FC = () => {
-  return <UserPage />;
+  return (
+    <Router>
+      <Routes>
+        <Route path="/users/:id" element={<UserPage />} />
+      </Routes>
+    </Router>
+  );
 };
 
-export default App;
+export default App;

modules/frontend/src/components/UserPage/UserPage.tsx

@@ -1,17 +1,21 @@
 import React, { useEffect, useState } from "react";
-import { DefaultService } from "../../api/services/DefaultService"; // adjust path
+import { useParams } from "react-router-dom"; // <-- import
+import { DefaultService } from "../../api/services/DefaultService";
 import type { User } from "../../api/models/User";
 import styles from "./UserPage.module.css";
 
 const UserPage: React.FC = () => {
+  const { id } = useParams<{ id: string }>(); // <-- get user id from URL
   const [user, setUser] = useState<User | null>(null);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
 
   useEffect(() => {
+    if (!id) return;
+
     const getUserInfo = async () => {
       try {
-        const userInfo = await DefaultService.getUsers("1", "all");
+        const userInfo = await DefaultService.getUsers(id, "all"); // <-- use dynamic id
         setUser(userInfo);
       } catch (err) {
         console.error(err);
@@ -21,7 +25,7 @@ const UserPage: React.FC = () => {
       }
     };
     getUserInfo();
-  }, []);
+  }, [id]);
 
   if (loading) return <div className={styles.loader}>Loading...</div>;
   if (error) return <div className={styles.error}>{error}</div>;