Basic logout flow

app/api/authentication.tsx

@@ -1,6 +1,7 @@
 /* Copyright (C) 2024 Manuel Bustillo*/
 
 import { getCsrfToken } from '@/app/lib/utils';
+import { User } from '@/app/lib/definitions';
 
 export function login({ email, password, onLogin }: { email: string, password: string, onLogin: () => void }) {
   console.log(email, password);
@@ -15,3 +16,23 @@ export function login({ email, password, onLogin }: { email: string, password: s
     .then(onLogin)
     .catch((error) => console.error(error));
 }
+
+export function logout({ onLogout }: { onLogout: () => void }) {
+  fetch("/api/default/users/sign_out", {
+    method: 'DELETE',
+    headers: {
+      'X-CSRF-TOKEN': getCsrfToken(),
+    }
+  }).then(onLogout)
+    .catch((error) => console.error(error));
+}
+
+export function getCurrentUser({ onLoad }: { onLoad: (user: User) => void }) {
+  fetch("/api/default/users/current")
+    .then((response) => response.json())
+    .then((data) => {
+      onLoad(data);
+    }, (error) => {
+      return null;
+    });
+}

app/lib/definitions.ts

@@ -54,3 +54,8 @@ export type guestsTable = {
   amount: number;
   status: 'pending' | 'paid';
 };
+
+export type User = {
+  id: string;
+  email: string;
+}

app/ui/components/login-form.tsx

@@ -4,16 +4,23 @@
 
 import { FloatLabel } from 'primereact/floatlabel';
 import { InputText } from 'primereact/inputtext';
-import { login } from '../../api/authentication';
-import { useState } from 'react';
+import { getCurrentUser, login } from '../../api/authentication';
+import { useState, useEffect } from 'react';
 import { classNames } from './button';
 import { useRouter } from 'next/navigation'
+import { User } from '../../lib/definitions';
 
 export default function LoginForm() {
   const [email, setEmail] = useState("");
   const [password, setPassword] = useState("");
 
-  const router = useRouter()
+  const router = useRouter();
+
+  const [currentUser, setCurrentUser] = useState<User | null>(null);
+
+  useEffect(() => {
+    localStorage.setItem('currentUser', JSON.stringify(currentUser));
+  }, [currentUser]);
 
   return (
     <div className="card flex justify-evenly py-5">
@@ -28,7 +35,14 @@ export default function LoginForm() {
       <button
         className={classNames('primary')}
         disabled={email.length == 0 || password.length == 0}
-        onClick={() => login({ email: email, password: password, onLogin: () => router.push('/dashboard') })}>
+        onClick={() => login({
+          email: email,
+          password: password,
+          onLogin: () => {
+            getCurrentUser({ onLoad: (user) => setCurrentUser(user) });
+            router.push('/dashboard')
+          }
+        })}>
         Sign in
       </button>
     </div>

app/ui/dashboard/sidenav.tsx

@@ -1,11 +1,17 @@
 /* Copyright (C) 2024 Manuel Bustillo*/
 
+'use client';
+
 import Link from 'next/link';
 import NavLinks from '@/app/ui/dashboard/nav-links';
 import { PowerIcon } from '@heroicons/react/24/outline';
 import { gloriaHallelujah } from '@/app/ui/fonts';
+import { logout } from '@/app/api/authentication';
+import { useRouter } from 'next/navigation';
 
 export default function SideNav() {
+  const router = useRouter();
+
   return (
     <div className="flex h-full flex-col px-3 py-4 md:px-2">
       <Link
@@ -19,12 +25,20 @@ export default function SideNav() {
       <div className="flex grow flex-row justify-between space-x-2 md:flex-col md:space-x-0 md:space-y-2">
         <NavLinks />
         <div className="hidden h-auto w-full grow rounded-md bg-gray-50 md:block"></div>
-        <form>
-          <button className="flex h-[48px] w-full grow items-center justify-center gap-2 rounded-md bg-gray-50 p-3 text-sm font-medium hover:bg-sky-100 hover:text-blue-600 md:flex-none md:justify-start md:p-2 md:px-3">
+        <button
+          className="flex h-[48px] w-full grow items-center justify-center gap-2 rounded-md bg-gray-50 p-3 text-sm font-medium hover:bg-sky-100 hover:text-blue-600 md:flex-none md:justify-start md:p-2 md:px-3"
+          onClick={() => {
+            logout({
+              onLogout: () => {
+                localStorage.clear();
+                router.push('/');
+              }
+            });
+          }}
+        >
           <PowerIcon className="w-6" />
           <div className="hidden md:block">Sign Out</div>
         </button>
-        </form>
       </div>
     </div>
   );