如何在wordpress中对用户进行身份验证?

How to authenticate the user in the wordpress?

我正在创建一个插件。我需要从 wordpress 的 rest api 获取一些信息,在这个 link: http://localhost/wordpress/wp-json/wp/v2/posts 不幸的是,当我试图从那里获取一些信息时,我的 ajax 根本不接受,因为只有经过身份验证的用户才能从那里获取信息。我尝试使用此代码:

<?php   

    //I am trying to authenticate the user here
    add_filter( 'rest_authentication_errors', 'only_authorised_rest_access');

    function only_authorised_rest_access( $result )
    {
        if( ! is_user_logged_in() ) {
            return new WP_Error( 'rest_unauthorised', __( 'Only authenticated users can access the REST API.', 'rest_unauthorised' ), array( 'status' => rest_authorization_required_code() ) );
        }

        return $result;
    }
?>

我正在使用这个功能

<?php
function wp_favoritar_posts_init() {
       $post_id = 6;
       
       echo "<div class='redimensionar'>";
       echo "<a id='teste' href='?wpfpaction=add&amp;postid=". $post_id ."' title='teste' rel='nofollow'>Favorito</a>";
       echo "</div>";
       echo "<script>calculate()</script>"; //I am calling the function for take the rest api here
       
   }


   add_shortcode('favorito', 'wp_favoritar_posts_init');


?>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script>
   function calculate(){
       var URL = "http://localhost/wordpress/wp-json/wp/v2/posts";
       
       $.ajax({
           type: "GET",
           dataType: "JSON",
           url: URL,
           success: function(data){
               alert('oi');
           },
           error: function (request, status, error) {
               alert(request.responseText);
           }
       });
       
   }
   
</script>

但是当我在浏览器中执行该页面时,出现了这个消息:

有人建议从浏览器获取 cookie 以验证用户身份?

我认为您安装了限制 API 访问的插件。 根据您发布的消息。

“Only authenticated users can access the REST API” is not an error message that appears anywhere in WordPress core. Are you using a plugin to restrict access to the API?

https://wordpress.org/support/topic/rest-api-not-allowing-unauthenticated-requests/