Standard loop of posts using the WP REST API

rest-api-loop.php

<?php
// Standard API query arguments
$args = array(
  'orderby' => 'title',
  'per_page' => 3
);

// Put into the `add_query_arg();` to build a URL for use
// Just an alternative to manually typing the query string
$url = add_query_arg( $args, rest_url('wp/v2/posts') );

// A standard GET request the WordPress way
$stuff = wp_remote_get($url);

// Get just the body of that request (if successful)
$body = wp_remote_retrieve_body($stuff);

// Turn the returned JSON object into a PHP object
$posts = json_decode($body);
?>

<?php // Standard foreach loop. Essentially, we just used the WP REST API to do the same thing as get_posts() ?>
<?php if (!empty($posts)) : ?>
  <?php foreach ($posts as $post) : ?>
    <article <?php post_class(); ?>>
      <h1><?php echo $post->title->rendered; ?></h1>
      <div><?php echo $post->content->rendered; ?></div>
    </article>
  <?php endforeach; ?>
<?php endif; ?>