Untitled

<html>
    <head>
      <meta charset="utf-8">
      <meta name="viewport" content="width=device-width, initial-scale=1">
      <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/css/bootstrap.min.css">
      <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
      <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>

      <script language="javascript">
        $(document).ready(function(){
          $("button").click(function(){
            $.get("http://jsonplaceholder.typicode.com/users/3", function(data, status){
            $("#id").val(data.id);
            $("#name").val(data.name);
            $("#username").val(data.username);
            $("#email").val(data.email);
            $("#website").val(data.website);
            });
          });
        });
      </script>
    </head>
    <body>
        <form action="/action_page.php">
          <div class="form-group">
            <label for="email">ID:</label>
            <input type="email" class="form-control" id="id" name="id">
          </div>
          <div class="form-group">
            <label for="email">Name:</label>
            <input type="email" class="form-control" id="name" name="name">
          </div>
          <div class="form-group">
            <label for="email">Username:</label>
            <input type="email" class="form-control" id="username" name="username">
          </div>
          <div class="form-group">
            <label for="email">Email address:</label>
            <input type="email" class="form-control" id="email" name="email">
          </div>
          <div class="form-group">
            <label for="email">Website:</label>
            <input type="email" class="form-control" id="website" name="website">
          </div>
          <button type="button" class="btn btn-default" name="button" id="button">Submit</button>
        </form>
    </body>
</html>