How do I handle pagination and ordering of results using the WordPress REST API

Pagination Parameters

- `?page=`: Specify the page of results to return. For example, `/wp/v2/posts?page=2` is the second page of posts results.
- `?per_page=`: Specify the number of records to return in one request, specified as an integer from 1 to 100. For example, `/wp/v2/posts?per_page=1` will return only the first post in the collection.
- `?offset=`: Specify an arbitrary offset at which to start retrieving posts. For example, `/wp/v2/posts?offset=6` will use the default number of posts per page, but start at the 6th post in the collection.

Ordering Parameters

- `?order=`: Control whether results are returned in ascending or descending order. Valid values are `asc` for ascending order and `desc` for descending order.
- `?orderby=`: Control the field by which the collection is sorted. The valid values for `orderby` will vary depending on the queried resource. For example, for the `/wp/v2/posts` collection, the valid values are `date`, `relevance`, `id`, `include`, `title`, and `slug`.

Example

bash
/wp/v2/posts?per_page=10&order=desc&orderby=date

bash
/wp/v2/posts?page=2&per_page=10&order=desc&orderby=date

Handling Pagination in WordPress

php
$args = array(
    'post_type' => 'post',
    'posts_per_page' => 10,
    'orderby' => 'date',
    'order' => 'desc'
);

$posts = get_posts($args);

if ($posts) {
    foreach ($posts as $post) {
        // Process the post
    }
}

Handling Ordering in WordPress

php
$args = array(
    'post_type' => 'post',
    'posts_per_page' => 10,
    'orderby' => 'date',
    'order' => 'desc'
);

$posts = get_posts($args);

if ($posts) {
    foreach ($posts as $post) {
        // Process the post
    }
}

Using the WordPress REST API

bash
/wp-json/wp/v2/posts?page=2&per_page=10&order=desc&orderby=date

Example Code

php
<?php

// Set the API endpoint URL
$api_url = 'https://example.com/wp-json/wp/v2';

// Set the page number and per page limit
$page = 2;
$per_page = 10;

// Set the order and orderby parameters
$order = 'desc';
$orderby = 'date';

// Construct the API query
$query = $api_url . '/posts?page=' . $page . '&amp;per_page=' . $per_page . '&amp;order=' . $order . '&amp;orderby=' . $orderby;

// Make the API request
$response = wp_remote_get($query);

// Process the response
if (is_wp_error($response)) {
    // Handle the error
} else {
    // Process the response data
    $posts = json_decode($response['body'], true);
    foreach ($posts as $post) {
        // Process the post
    }
}

?>

Conclusion

In conclusion, handling pagination and ordering of results using the WordPress REST API involves using the `page`, `per_page`, `order`, and `orderby` query parameters. You can use the `get_posts` function in WordPress to handle pagination and ordering, or use the WordPress REST API with the `wp-json` endpoint.