Build an Email demo
Build an Email demo
A Hello World tutorial to quickly get familiar with Magic. 🚀
#Build in CodeSandbox
👉 What you'll build: Hello World demo
#0. Get the template code
To follow along with the tutorial, use our Hello World template in CodeSandBox.
#1. Install Magic SDK
Install the Magic SDK to the Hello World template with a script tag. You can copy and paste the below code to the CodeSandBox editor after the comment:
01<!-- 1. Install Magic SDK -->
02<script src="https://auth.magic.link/sdk"></script>
Or install Magic SDK with yarn or npm.
#2. Initialize Magic Instance
Initialize a Magic instance with a Publishable API Key with this code:
01/* 2. Initialize Magic Instance */
02const magic = new Magic('YOUR_LIVE_PUBLISHABLE_API_KEY');
You need to sign up to Magic Dashboard to get your own API keys.
Replace the 'YOUR_LIVE_PUBLISHABLE_API_KEY' string with your "Publishable API Key" from the Magic Dashboard:
#3. Implement Render Function
Let's add the logic on what should display when:
- Users are not logged in,
- Users are logged in
Copy and paste this code:
01/* 3. Implement Render Function */
02
03
04 const render = async () => {
05 let html = '';
06 /*
07 For this tutorial, all we need to worry about is simply the response we get after a successful OTP login flow
08 */
09 const isLoggedIn = await magic.user.isLoggedIn();
10
11 /* Show login form if user is not logged in */
12 html = `
13 <h1>Please sign up or login</h1>
14 <form onsubmit="handleLogin(event)">
15 <input type="email" name="email" required="required" placeholder="Enter your email" />
16 <button type="submit">Send</button>
17 </form>
18 `;
19
20 if (isLoggedIn) {
21 /* Get user metadata including email */
22 const userMetadata = await magic.user.getMetadata();
23 html = `
24 <h1>Current user: ${userMetadata.email}</h1>
25 <button onclick="handleLogout()">Logout</button>
26 `;
27 }
28
29 document.getElementById('app').innerHTML = html;
30 };
#4. Implement Login Handler
You can now implement user login without needing to write any backend code! Copy and paste this code:
01/* 4. Implement Login Handler */
02 const handleLogin = async (e) => {
03 e.preventDefault();
04 const email = new FormData(e.target).get('email');
05 if (email) {
06 /* One-liner login with email OTP 🤯 */
07 await magic.auth.loginWithEmailOTP({ email });
08 render();
09 }
10 };
#5. Implement Logout Handler
To wrap it up, let's implement user logout as well. Copy and paste this code:
01/* 5. Implement Logout Handler */
02const handleLogout = async () => {
03 await magic.user.logout();
04 render();
05};
#6. Done
You've completed the tutorial! Here's a working demo of the tutorial we just went over.
#What's Next
#Use Magic with existing tools
- Node.js – Now that you have an understanding of how Magic works on the client-side, we strongly recommend you to take a look at an end-to-end, full-stack example to learn about how to connect it to a Node.js backend server and see the full potential of Magic!
- Firebase – Magic provides much flexibility and composability to be combined with many other powerful platforms such as Firebase. Learn how to plug Magic into the entire Firebase suite of tools!
- Next.js (Vercel) – Learn how to use the popular Next.js framework to build a React app and deploy it with Vercel.
#Customize your Magic flow
You can customize the login experience using your own UI instead of Magic's default one and/or customize the magic link email with your brand. Learn how to customize.
