Checking the API index
The WP-API provides us with an index of all available routes and their endpoints. To get to that index, type in, for e.g., http://localhost/wp-json/wp/v2 in Postman. This is a first level route. All the other routes start with this, and then continue onwards.
Exploring Common Routes
API Index – GET /wp-json/wp/v2/ => This gives us a list of all the available routes and, within each of the routes, you will get a list of all the available endpoints and within the endpoints, you get a list of all the available arguments.
Post index (10 latest posts) – GET /wp-json/wp/v2/posts
Post index (all available posts) – GET /wp-json/wp/v2/posts?per_page=0
Single post based on ID – GET /wp-json/wp/v2/posts/{post-ID}
Page index (10 latest pages) – GET /wp-json/wp/v2/pages
Single page based on ID – GET /wp-json/wp/v2/pages/{page-ID}
Category index (10 first categories, alphabetically) – GET /wp-json/wp/v2/terms/category
Category index (all available categories) – GET /wp-json/wp/v2/terms/category?per_page=0
Single category based on ID – GET /wp-json/wp/v2/terms/category/{cat-ID}
Posts in category based on category slug – GET (…)/posts?filter[category_name]={slug}
Posts in category based on category ID – GET (…)/posts?filter[cat]={cat-ID}
Tag index (10 first tags, alphabetically) – GET /wp-json/wp/v2/terms/tag
Tag index (all available tags) – GET /wp-json/wp/v2/terms/tag?per_page=0
Single tag based on ID – GET /wp-json/wp/v2/terms/tag/{tag-ID}
Posts in tag based on tag name (slug) – GET (…)/posts?filter[tag]={slug}
Posts in tag based on tag ID – GET (…)/posts?filter[tag_id]={tag-ID}
User index (10 most recent) – GET /wp-json/wp/v2/users
Current logged in user – GET /wp-json/wp/v2/users/me
Single user based on ID – GET /wp-json/wp/v2/users/{user-ID}
Comments index (10 most recent) – GET /wp-json/wp/v2/comments
10 latest comments on specific post based on post ID – GET /wp-json/wp/v2/comments?post={post-ID}
All comments on specific post based on post ID – GET /wp-json/wp/v2/comments?post={post-ID}&per_page=0