You can use pre_get_posts as suggested but simply check the global $wp object for the request url.. like so: add_action( ‘pre_get_posts’, function ($query ){ global $wp; if ( !is_admin() && $query->is_main_query() ) { if ($wp->request == ‘cats’){ header(‘Content-Type: application/json’); $cats = array(‘Hobbes’, ‘Simba’, ‘Grumpy Cat’); echo json_encode($cats); exit; } } }); (PHP 5.3+ in this … Read more
That’s the root URL for the REST API. All WordPress installs have it, but in 4.6 very few endpoints exist, mostly oembed and plugins. The core infrastructure for the REST API has been available since 4.5, with functions such as register_rest_route being available. /wp-json itself is generating discovery data, listing the various available endpoints. You … Read more
The string output type is expected for $wpdb query results, the db data types are not mapped to the corresponding PHP data types. You will have to take care of it yourself, like: $data = [ ‘int’ => (int) ‘123’, ‘bool’ => (bool) ‘1’, ‘string’ => (string) ‘abc’ ]; return rest_ensure_response( $data ); with the … Read more
I think we can simplify it with: $request = new WP_REST_Request( ‘GET’, ‘/wp/v2/posts’ ); $response = rest_do_request( $request ); $data = rest_get_server()->response_to_data( $response, true ); by using rest_do_request().
You can modifiy REST API responses in themes functions.php like this. function ws_register_images_field() { register_rest_field( ‘post’, ‘images’, array( ‘get_callback’ => ‘ws_get_images_urls’, ‘update_callback’ => null, ‘schema’ => null, ) ); } add_action( ‘rest_api_init’, ‘ws_register_images_field’ ); function ws_get_images_urls( $object, $field_name, $request ) { $medium = wp_get_attachment_image_src( get_post_thumbnail_id( $object->id ), ‘medium’ ); $medium_url = $medium[‘0’]; $large = wp_get_attachment_image_src( … Read more
BODA82’s answer helped, but eventually I realized that I should have replaced responseText with responseJSON method in my JavaScript code. In the example below I was storing the Ajax response results in a variable. I didn’t know there was a specific method to get the response in JSON. In a such way the object/array with … Read more
serialize representation can be stored in text and reversed JSON representation can be stored in text but cannot always be precisely reversed Run this example: $query = new WP_Query(); var_dump( $query ); var_dump( unserialize( serialize( $query ) ) ); var_dump( json_decode( json_encode( $query ) ) ); After going through serialize accurate WP_Query object is re-created. … Read more
If you want the D.I.Y. route… The post type in this example is set to ‘post’ but you can see where to change it. Here is a working example to pull the data ( first page in this example ), parse the response, create a class for the clean(er) data, generate posts from that data … Read more
I ended up extending the API like suggested in the comments to my question, although I was hoping there was a default route that fetched all posts of all post types. Apparently, there isn’t. So here’s my solution: add_action( ‘rest_api_init’, ‘custom_api_get_all_posts’ ); function custom_api_get_all_posts() { register_rest_route( ‘custom/v1’, ‘/all-posts’, array( ‘methods’ => ‘GET’, ‘callback’ => ‘custom_api_get_all_posts_callback’ … Read more
Sorry for answering my own question but it may help some other devs too. I created this additional filter ‘json_query_var-meta_query’that returns the necessary arguments. function adjustQrry($data){ $args = array(); $args[‘relation’] = ‘AND’; foreach ($data as $key=>$value) { if ( ‘relation’ === $key ) { $args[‘relation’] = $data[‘relation’]; } if ( substr($key, 0, 3) === ‘key’ … Read more