Membuat Proses Logout Di Login Dengan Google Di Vue 3 — Part 5

Membangun aplikasi web di era modern memerlukan pondasi yang kokoh. Framework modern memberikan fleksibilitas luar biasa bagi developer untuk menghadirkan fitur kompleks secara cepat tanpa mengabaikan aspek keamanan dan keandalan sistem.

Tahapan Implementasi & Walkthrough Kode

Berikut adalah langkah demi langkah teknis yang dapat Anda ikuti langsung pada codebase Anda:

Tahap 1: Penulisan Kode & Konfigurasi

<script setup>

//import ref and onMounted
import { ref, onMounted } from 'vue';

//import googleTokenLogin and googleLogout
import { googleTokenLogin, googleLogout } from 'vue3-google-login';

//import axios
import axios from 'axios';

//state accessToken
const accessToken = ref(localStorage.getItem('accessToken'));

//state profile
const profile = ref(JSON.parse(localStorage.getItem('profile')));

//function fetchUserProfile
const fetchUserProfile = async (token) => {
  try {
    const res = await axios.get('https://www.googleapis.com/oauth2/v1/userinfo', {
      headers: {
        Authorization: `Bearer ${token}`,
        Accept: 'application/json',
      },
      params: {
        access_token: token,
      },
    });

    //assign response to state profile
    profile.value = res.data;

    //store response to localStorage
    localStorage.setItem('profile', JSON.stringify(res.data));

  } catch (error) {
    console.error('Failed to fetch user profile:', error);
  }
};

onMounted(() => {
  if (accessToken.value && !profile.value) {
    fetchUserProfile(accessToken.value);
  }
});

const login = () => {
  googleTokenLogin().then((response) => {

    //set state accessToken
    accessToken.value = response.access_token;

    //store accessToken to localStorage
    localStorage.setItem('accessToken', accessToken.value);

  })
}

const handleLogout = () => {

  //call googleLogout
  googleLogout();

  //set state accessToken and profile to null
  profile.value = null;
  accessToken.value = null;

  //remove accessToken and profile from localStorage
  localStorage.removeItem('accessToken');
  localStorage.removeItem('profile');
};
</script>

<template>
  <div class="container mt-5">
    <div class="row justify-content-center">
      <div class="col-md-6">
        <div class="card border-0 rounded shadow-sm">
          <div class="card-header">
            <h5 class="card-title mb-0">Google Login with Vue 3</h5>
          </div>
          <div class="card-body">
            <div class="text-center">
              <div v-if="profile">
                <div class="text-center mb-3">
                  <img :src="profile.picture" class="rounded-circle bg-dark p-2 shadow" alt="User profile" />
                </div>
                <table class="table table-striped table-bordered">
                  <tbody>
                    <tr>
                      <td class="fw-bold">Full Name</td>
                      <td>{{ profile.name }}</td>
                    </tr>
                    <tr>
                      <td class="fw-bold">Email Address</td>
                      <td>{{ profile.email }}</td>
                    </tr>
                  </tbody>
                </table>
                <button class="btn btn-danger" @click="handleLogout">Log out</button>
              </div>
              <div v-else>
                <button class="btn btn-primary" @click="login">Login with Google</button>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<style scoped>
/* Add your styles here if needed */
</style>

Tahap 2: Penulisan Kode & Konfigurasi

//import googleTokenLogin and googleLogout
import { googleTokenLogin, googleLogout } from 'vue3-google-login';

Tahap 3: Penulisan Kode & Konfigurasi

<button class="btn btn-danger" @click="handleLogout">Log out</button>

Tahap 4: Penulisan Kode & Konfigurasi

const handleLogout = () => {

	//...
	
}

Tahap 5: Penulisan Kode & Konfigurasi

//call googleLogout
googleLogout();

Tahap 6: Penulisan Kode & Konfigurasi

//set state accessToken and profile to null
profile.value = null;
accessToken.value = null;

Tahap 7: Penulisan Kode & Konfigurasi

//remove token and profile from localStorage
localStorage.removeItem('accessToken');
localStorage.removeItem('profile');

Kesimpulan

Dengan mengikuti langkah-langkah terstruktur di atas, implementasi modul Anda akan jauh lebih rapi, aman dari bug umum, serta siap diskalakan ke lingkungan produksi.

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