How can I get a list of posts for a category with WP-API?

5 comments

1. Found it, somewhat [hidden][1]

   Using the category name:
   /posts?categories=1

   Try this one.

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2. This question is a duplicate from this other question here from the forum

   http://example.com/wp-json/wp/v2/posts?categories=20,30
   

   The above will return posts from category 20 OR category 30

   I’ve tested with custom post types and it also works perfectly

   The response and credits go to “Manish Jung Thapa”

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3. For category name, two filters should be added like this:

   add_filter( "rest_post_query", function( $args, $request){
                   if ( isset( $request['category_name']) && !empty($request['category_name'] ) ) {
                       $args['category_name'] = $request['category_name'];
                   }
                   return $args;
               }, 10, 2);
   
   
   add_filter( "rest_post_collection_params", function($query_params, $post_type){
                   $query_params[ 'category_name' ] = array(           
                       'description' => __( 'Category name.' ),
                       'type'        => 'string',
                       'readonly'    => true,
                   );
                   return $query_params;
               }, 10, 2);
   

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4. This code is working for me

   Add to your function.php

   function rest_filter_by_custom_taxonomy( $args, $request ) {
   
   if ( isset($request['category_slug']) )
   {
       $category_slug = sanitize_text_field($request['category_slug']);
       $args['tax_query'] = [
           [
               'taxonomy' => 'category',
               'field'    => 'slug',
               'terms'    => $category_slug,
           ]
       ];
   }
   
   return $args;
   
    }
    add_filter('rest_post_query', 'rest_filter_by_custom_taxonomy', 10, 3);
   

   EX: /wp-json/wp/v2/posts?category_slug=news

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5. This example url worked for me… https://yourdomain.com/?rest_route=/wp/v2/posts&categories=99

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