Implement authentication in frontend

front/src/LogIn.vue

@@ -23,20 +23,19 @@
     return extractFromErrorFromField("Password", errors.value);
   })
 
-  function onSubmit(e) {
-    postLogin(user)
-      .then((res) => {
+  async function onSubmit(e) {
+    const res = await postLogin(user)
     if (res.ok) {
-          res.json().then((json) => login(user.value.username, json));
+      let json = await res.json();
+      await login(user.value.username, json);
       router.push('/');
       return;
     } else {
       res.json().then((json) => (errors.value = json));
     }
-      })
   }
 
-  function login(username, json) {
+  async function login(username, json) {
     useAuthStore().login({username: username, token: json["token"]})
   }
 </script>

front/src/api.js

@@ -1,4 +1,5 @@
 import { ref } from 'vue'
+import { useAuthStore } from './auth.store.js'
 
 const baseUrl = "http://localhost:8080"
 
@@ -6,10 +7,19 @@ function useFetch(url) {
   const data = ref(null);
   const error = ref(null);
 
-  fetch(url)
+  const { user } = useAuthStore();
+
+  if (user != null) {
+    fetch(url, {
+      method: 'GET',
+      headers: {
+        'Authorization': 'Bearer ' + user.token
+      }
+    })
       .then((res) => res.json())
       .then((json) => (data.value = json))
       .catch((err) => (error.value = err));
+  }
 
   return { data, error }
 }
@@ -23,23 +33,41 @@ export function postBook(book) {
 }
 
 export function postLogin(user) {
-  return genericPostCall('/auth/login', user.value)
+  return genericPostCallNoAuth('/auth/login', user.value)
 }
 
 export function postSignUp(user) {
-  return genericPostCall('/auth/signup', user.value)
+  return genericPostCallNoAuth('/auth/signup', user.value)
 }
 
-export function genericPostCall(apiRoute, object) {
+export function genericPostCallNoAuth(apiRoute, object) {
   return fetch(baseUrl + apiRoute, {
     method: 'POST',
     headers: {
-      'Content-Type': 'application/json'
+      'Content-Type': 'application/json',
     },
     body: JSON.stringify(object)
   })
 }
 
+export function genericPostCall(apiRoute, object) {
+  const { user } = useAuthStore();
+
+  if (user != null) {
+    return fetch(baseUrl + apiRoute, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': authorizationHeader()
+      },
+      body: JSON.stringify(object)
+    })
+  }
+  else {
+    return Promise.resolve();
+  }
+}
+
 export function extractFromErrorFromField(fieldName, errors) {
   if (errors === null || !('field' in errors)) {
     return "";

front/src/auth.store.js

@@ -8,7 +8,7 @@ export const useAuthStore = defineStore('auth', {
     returnUrl: null
   }),
   actions: {
-    login(user) {
+    async login(user) {
       this.user = user;
       localStorage.setItem('user', JSON.stringify(user));
     },