LifterLMS_DIR_AC_RAPI – Expose LifterLMS ACF Fields to REST API

/**

 * WPCode Snippet: Expose LifterLMS ACF Fields to REST API

 * Description: Makes LifterLMS module data accessible via Application Password authentication

 * Location: Run Everywhere

 * Priority: 15

 */

defined( 'ABSPATH' ) || exit;

/**

 * Register LifterLMS ACF meta fields in REST API

 */

add_action( 'rest_api_init', function() {

    $llms_fields = array(

        // Module ID

        'item_id'                   => 'integer',

        // Edit Links

        'llms_course_edit_link'     => 'string',

        'llms_course_builder_link'  => 'string',

        'llms_course_reporting_link' => 'string',

        // Status

        'status'                    => 'string',

        // Module Settings

        'course_duration'           => 'string',

        'course_capacity'           => 'integer',

        'course_instructors'        => 'string',

        'is_free'                   => 'boolean',

        // Drip Settings

        'drip_method'               => 'string',

        'drip_value'                => 'string',

        // Module Content

        'excerpt'                   => 'string',

        'course_content'            => 'string',

        // Combined Content Fields

        'all_lesson_content'        => 'string',

        'all_section_content'       => 'string',

        // Counts

        'section_count'             => 'integer',

        'total_lessons'             => 'integer',

        'total_quizzes'             => 'integer',

        'total_assignments'         => 'integer',

        'engagements_count'         => 'integer',

        // Prerequisites

        'has_prerequisite'          => 'boolean',

        'prerequisite_id'           => 'integer',

        // Certificate

        'has_certificate'           => 'boolean',

        // Comprehensive Detail TextAreas

        'steps_details_list'        => 'string',

        'quizzes_details_list'      => 'string',

        'assignments_details_list'  => 'string',

        'sections_details_list'     => 'string',

        'certificates_details_list' => 'string',

        'engagements_details_list'  => 'string',

        // Sync Status

        'last_sync'                 => 'string',

        'sync_status'               => 'string',

    );

    // Register LifterLMS fields

    foreach ( $llms_fields as $field_name => $field_type ) {

        register_rest_field( 'llms_content_sync', $field_name, array(

            'get_callback' => function( $object ) use ( $field_name, $field_type ) {

                $value = get_post_meta( $object['id'], $field_name, true );

                if ( $value === '' || $value === false ) {

                    return null;

                }

                switch ( $field_type ) {

                    case 'integer':

                        return intval( $value );

                    case 'boolean':

                        return (bool) $value;

                    case 'array':

                        return is_array( $value ) ? $value : array();

                    case 'object':

                        return is_array( $value ) || is_object( $value ) ? $value : new stdClass();

                    default:

                        return $value;

                }

            },

            'update_callback' => function( $value, $object ) use ( $field_name ) {

                return update_post_meta( $object->ID, $field_name, $value );

            },

            'schema' => array(

                'description' => ucwords( str_replace( '_', ' ', $field_name ) ),

                'type'        => $field_type,

                'context'     => array( 'view', 'edit' ),

            ),

        ) );

    }

} );

/**

 * Enable REST API for LifterLMS CPT

 */

add_filter( 'register_post_type_args', function( $args, $post_type ) {

    if ( $post_type === 'llms_content_sync' ) {

        $args['show_in_rest'] = true;

        $args['rest_base'] = 'llms-content-sync';

        $args['rest_controller_class'] = 'WP_REST_Posts_Controller';

    }

    return $args;

}, 10, 2 );

/**

 * Security: Block access unless using Application Password

 */

add_filter( 'rest_pre_dispatch', function( $result, $server, $request ) {

    $route = $request->get_route();

    if ( strpos( $route, '/wp/v2/llms-content-sync' ) === false &&

         strpos( $route, '/llms-content-sync/v1' ) === false ) {

        return $result;

    }

    $user = wp_get_current_user();

    if ( ! $user || ! $user->exists() ) {

        return new WP_Error(

            'rest_forbidden',

            __( 'Authentication required. Please use Application Password credentials.' ),

            array( 'status' => 401 )

        );

    }

    $auth_header = $request->get_header( 'authorization' );

    if ( empty( $auth_header ) ) {

        return new WP_Error(

            'rest_forbidden',

            __( 'Application Password authentication required. Browser login not allowed.' ),

            array( 'status' => 403 )

        );

    }

    return $result;

}, 10, 3 );

/**

 * Debug endpoint

 */

add_action( 'rest_api_init', function() {

    register_rest_route( 'llms-content-sync/v1', '/test', array(

        'methods'  => 'GET',

        'callback' => function() {

            $posts = get_posts( array(

                'post_type' => 'llms_content_sync',

                'numberposts' => 1,

            ) );

            if ( empty( $posts ) ) {

                return new WP_REST_Response( array(

                    'status' => 'error',

                    'message' => 'No LMS posts found. Run sync first.',

                ), 404 );

            }

            $post = $posts[0];

            return new WP_REST_Response( array(

                'status' => 'success',

                'message' => 'LifterLMS REST API is working!',

                'post_info' => array(

                    'id' => $post->ID,

                    'title' => $post->post_title,

                ),

                'total_fields_available' => 34,

            ), 200 );

        },

        'permission_callback' => '__return_true',

    ) );

} );