feat(Login): add example jwt token

src/services/auth.js

@@ -0,0 +1,49 @@
+class AuthService {
+  static TOKEN_KEY = 'access_token';
+  static REFRESH_KEY = 'refresh_token';
+
+  static login(credentials) {
+    const url = `${import.meta.env.VITE_DJANGO_BASE_URL}/api/token/`;
+    return fetch(url, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify(credentials),
+    })
+      .then(r => r.json())
+      .then(data => {
+        localStorage.setItem(this.TOKEN_KEY, data.access);
+        localStorage.setItem(this.REFRESH_KEY, data.refresh);
+        return data;
+      });
+  }
+
+  static getAccessToken() {
+    return localStorage.getItem(this.TOKEN_KEY);
+  }
+
+  static getRefreshToken() {
+    return localStorage.getItem(this.REFRESH_KEY);
+  }
+
+  static async refresh() {
+    const refresh = this.getRefreshToken();
+    if (!refresh) throw new Error('No refresh token');
+
+    const url = `${import.meta.env.VITE_DJANGO_BASE_URL}/api/token/refresh/`;
+    const resp = await fetch(url, {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ refresh }),
+    });
+    const data = await resp.json();
+    localStorage.setItem(this.TOKEN_KEY, data.access);
+    return data.access;
+  }
+
+  static logout() {
+    localStorage.removeItem(this.TOKEN_KEY);
+    localStorage.removeItem(this.REFRESH_KEY);
+  }
+}
+
+export default AuthService;