tutorials/index.html at 6d2e15a9ee0e1ce053b2569a8f4f4d452f1c1f78 · ably/tutorials · GitHub

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<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>JWT authentication with Ably</title>
    <link rel="stylesheet" href="css/style.css" />
    <link
      rel="icon"
      href="https://static.ably.dev/motif-red.svg?jwt-authentication-nodejs"
      type="image/svg+xml"
    />
    <script
      src="https://cdn.ably.io/lib/ably.min-2.js"
      type="text/javascript"
    ></script>
    <script type="text/javascript">
      /*
        Set up a Realtime client that authenticates
        with the local web server auth endpoint
        and outputs the JWT to the console.log
      */

      function login(e) {
        e.preventDefault();

        const username = document.querySelector("#username").value;
        const password = document.querySelector("#password").value;

        if (!`${username}`.trim() || !`${password}`.trim()) {
          return alert("Error! Require username and password");
        }

        // Send user details to the auth server
        const authUrl = `/auth?clientId=${username}:${password}`;
        const realtime = new Ably.Realtime({ authUrl });

        console.log("Fetching JWT token from auth server", username, password);

        realtime.connection.once("connected", () => {
          const { tokenDetails } = realtime.auth;
          console.log("Client connected to Ably using JWT", tokenDetails);
          alert("Client successfully connected to Ably using JWT auth");
        });
      }
    </script>
  </head>

  <body>
    <section class="container">
      <div class="login">
        <h1>Ably JWT auth example</h1>
        <form>
          <label for="username">Username</label>
          <input type="text" placeholder="Enter Username" id="username" />
          <label for="password">Password</label>
          <input type="password" placeholder="Password" id="password" />
          <button type="submit" onclick="login(event)">Login</button>
        </form>
      </div>
    </section>
  </body>
</html>