Error rest_post_invalid_page_number trying to call Rest API

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I got the following error, trying to call all posts or alle posts from a specific post type via the REST API:

/wp-json/wp/v2/posts
/wp-json/wp/v2/posts?page=1
/wp-json/wp/v2/posts?page=1&per_page=1
/wp-json/wp/v2/faq

The error which appears is:

{ "code": "rest_post_invalid_page_number", "message": "The page number requested is larger than the number of pages available.", "data": { "status": 400 } }

I got two posts within the custom post type and one normal post.

What causes this error?

I got the following error, trying to call all posts or alle posts from a specific post type via the REST API:

/wp-json/wp/v2/posts
/wp-json/wp/v2/posts?page=1
/wp-json/wp/v2/posts?page=1&per_page=1
/wp-json/wp/v2/faq

The error which appears is:

{ "code": "rest_post_invalid_page_number", "message": "The page number requested is larger than the number of pages available.", "data": { "status": 400 } }

I got two posts within the custom post type and one normal post.

What causes this error?

• rest-api

Share Improve this question edited Dec 5, 2018 at 22:46 fuxia♦ 107k3838 gold badges255255 silver badges459459 bronze badges asked Dec 4, 2018 at 9:55 MaxMax 17633 silver badges1515 bronze badges 6

• What's your code? And you should use per_page to limit the number of posts, like so: /wp-json/wp/v2/posts?per_page=3 - demo. That's for the standard post type, but should also work for custom post types. – Sally CJ Commented Dec 4, 2018 at 10:39
• I have no code written yet. I am just trying to get the result within the browser. – Max Commented Dec 4, 2018 at 10:55
• Ok, but the error actually clearly suggests that there were no posts found for the request. Are you 100% sure the normal post you have is not private (and published)? If yes, then there's probably a plugin or custom code which filters the REST API response and excluding that post. – Sally CJ Commented Dec 4, 2018 at 11:26
• I am absolutely sure that there are published posts. :/ – Max Commented Dec 4, 2018 at 11:27
• The only plugin activated is AdvancedCustomFieldsPro – Max Commented Dec 4, 2018 at 11:29

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2 Answers 2

Sorted by: Reset to default 0

I don't know why yet, but I had the same issue until I disabled a filter on pre_get_posts.

What I'm doing here is retrieve all recipe custom post type when I'm on the home page :

// add_filter( 'pre_get_posts', 'my_get_posts' );

function my_get_posts( $query )
{
    if ( is_home() && $query->is_main_query() )
        $query->set( 'post_type', array( 'recipe' ) );
        $query->set( 'posts_per_page', -1 );

    return $query;
}

Try to know if you're hijacking a main query like I did, I'll do more research on the "why" :)

I had the same above issue. I disabled the 'pre_get_posts and it worked fine.

// add_action('pre_get_posts','pre_queries');

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