Wp Rest Api Custom End point

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Im trying to add a custom end point to my wp-rest api the latest version. I have this already but the one with the slug param at the end does not work.. Does any one know why.. would be great if anyone could help.. 

     register_rest_route( 'wp/v2', '/guestmix', array(
        array(
            'methods'         => WP_REST_Server::READABLE,
            'callback'        => array( $this, 'get_guestmixes' )
        ),
        'schema' => array( $this, 'get_public_item_schema' )
    ) );

    register_rest_route( 'wp/v2', '/guestmix/(?P<slug>d+)', array(
        'methods' => 'GET',
        'callback' => 'get_guestmix'
    ) );
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2 comments

  1. i guess it because you used d metacharacter for regex (?P<slug>d+) that’s mean for digit, please try use S instead.
    The code should look like this

    register_rest_route( 'wp/v2', '/guestmix/(?P<slug>S+)', array(
    'methods' => 'GET',
    'callback' => 'get_guestmix'
) );

    this is cheat sheet for reference http://www.phpliveregex.com/

  2. The above answer works for me, though I implemented the regular expression slightly differently, following a 2019 gist, that covers different url/slug-structure scenarios.

    register_rest_route( 'wp/v2', '/guestmix/(?P<slug>[a-zA-Z0-9-]+)', array(
    'methods' => 'GET',
    'callback' => 'get_guestmix'
) );

    Hope this helps

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