I already get posts from categories with: http://domain.com/wp-json/wp/v2/posts?filter[category_name]=category-name but how can i retrieve content from page? - [page_name]=page-name for example but its not working. I have searched lot but cant found any solution. Thanks.
To retrieve a page by slug, just use
/wp-json/wp/v2/pages/?slug=your-page-name-here, with "your-page-name-here" obviously being the slug of your page.
/wp-json/wp/v2/pages/<id>. Not sure if retrieving a page by name is possible using the REST API.
the correct form is:
I hope I have helped.