This is where the REST API is used to its maximum potential, even though we use it to build functionality of the same site. The main intention of creating a REST API is to provide access to third-party WordPress and non-WordPress based applications. So, the API client can be implemented in any programming language. In this section, we will be building a PHP based API client for accessing REST APIs of other applications with the support of CURL.
Let's add the API client implementation with CURL. You should place this code in a PHP file and access it from a source external to your application:
function wpquick_rest_api_client( $url, $post_data = '' ){ $api_route = $url; $ch = curl_init( $api_route ); $headers ...
