Retrieving the REST API URL in WordPress using get_rest_url

The WordPress get_rest_url function is used to retrieve the URL for the REST API of a WordPress site. This function can be useful for developers who are working with the WordPress REST API and need to dynamically generate the URL for making requests to the API.

By using the get_rest_url function, developers can ensure that their code is flexible and can adapt to changes in the site’s URL structure or configuration. This can help to future-proof their code and make it easier to maintain in the long run.

Parameters accepted by get_rest_url function

• $blog_id (int|null), optional. Default value: null. Description: Blog ID. Default of null returns URL for current blog.
• $path (string), optional. Default value: ‘/’. Description: REST route. Default ‘/’.
• $scheme (string), optional. Default value: ‘rest’. Description: Sanitization scheme. Default ‘rest’.

Value returned by get_rest_url function

The function returns a string which is the full URL to the endpoint.

Examples

How to use get_rest_url to retrieve the REST API URL for a specific route

Here is a code snippet that shows how to use the get_rest_url function to retrieve the REST API URL for a specific route:

$route = 'my-custom-route';
$url = get_rest_url( null, '/my-namespace/' . $route );
echo $url;

This code snippet retrieves the REST API URL for a specific route, in this case, ‘my-custom-route’ within the ‘my-namespace’ namespace. The get_rest_url function takes two parameters: the namespace and the route, and returns the full URL for the specified route.

How to use get_rest_url to retrieve the REST API URL for the site

Here is a code snippet that shows how to use the get_rest_url function to retrieve the REST API URL for the site:

$url = get_rest_url( null, '/' );
echo $url;

This code snippet retrieves the REST API URL for the site. The get_rest_url function takes two parameters: the namespace (in this case, null) and the route (in this case, ‘/’), and returns the full URL for the site’s REST API.

Conclusion

In conclusion, the get_rest_url function is a crucial tool for developers working with RESTful APIs in WordPress. By providing a simple and standardized way to construct API endpoint URLs, it streamlines the development process and ensures consistency across projects. Its flexibility and ease of use make it a valuable asset for any WordPress developer looking to incorporate RESTful functionality into their projects.