WPGraphQL User Meta Example

wpgraphql-user-meta-fields.php

<?php

namespace MyCoolApp;

use WPGraphQL\Model\User;

class UserFields {
    public function register_hooks() {
        add_action( 'graphql_register_types', [ $this, 'register_fields' ] );
    }

    public function register_fields() {
        register_graphql_fields( 'User', [
            'favoriteColor' => [
                'type'        => 'String',
		'description' => __( 'User\'s favorite color', 'my-cool-app' ),
		'resolve'     => function( User $user ) {
                    $favorite_color = get_user_meta( $user->fields['userId'], 'favorite_color', true );

                    return $favorite_color ?: null;
		},
            ],
            'favoriteFood' => [
                'type'        => 'String',
                'description' => __('User\'s favorite food', 'my-cool-app'),
                'resolve'     => function ( User $user ) {
                    $favorite_food = get_user_meta( $user->fields['userId'], 'favorite_food', true );

                    return $favorite_food ?: null;
                },
            ],
        ] );
    }
}