To handle errors when paginating results in the WordPress REST API, follow these steps:
1. Check for HTTP Error Codes:
- Use the HTTP status code to determine if there was an error. For example, a 404 error indicates that the requested resource was not found.
- Use the `wp_remote_get` function to handle HTTP errors and retrieve the response body.
2. Handle 404 Errors:
- Check if the requested resource exists on your WordPress site.
- Verify that the endpoint URL is correct.
3. Handle 500 Errors:
- Debug the server to identify the problem.
- Ensure your WordPress installation and plugins are up-to-date.
4. Handle 403 Errors:
- Check your authentication method and ensure your user role has the necessary permissions to perform the requested action.
5. Use Error Logging:
- Use error logging to track and debug issues.
- Log errors to a file or database for later analysis.
Here is an example of how you can handle errors when paginating results in the WordPress REST API:
php
<?php
// Define the API endpoint URL
$api_url = 'https://your-wordpress-site.com/wp-json/wp/v2/posts';
// Define the pagination parameters
$page = 2;
$per_page = 5;
// Construct the API query
$query = $api_url . '?page=' . $page . '&per_page=' . $per_page;
// Make the API request
$response = wp_remote_get($query);
// Check for HTTP error codes
if (is_wp_error($response)) {
// Handle the error
error_log('Error fetching posts: ' . $response->get_error_message());
} else {
// Process the response data
$posts = json_decode($response['body'], true);
foreach ($posts as $post) {
// Process the post
}
}
?>
In this example, the code checks for HTTP error codes using `is_wp_error` and logs the error message if an error occurs.
Citations:[1] https://learn.wordpress.org/tutorial/using-the-wordpress-rest-api/
[2] https://wordpress.stackexchange.com/questions/348366/pagination-in-wp-rest-api
[3] https://developer.wordpress.org/rest-api/using-the-rest-api/pagination/
[4] https://github.com/Yoast/wordpress-seo/issues/20145
[5] https://wp-umbrella.com/blog/wordpress-rest-api/