How To Specify the fields to Wordpress API v2

Question

I'm using the WordPress REST API in my project and sending a GET request to:

http://myblog/wp-json/wp/v2/posts  

and It's working quite alright but I want to specify the fields though I don't know how. I have looked at the documentation and still don't know how to go about it. For example, using the public API:

https://public-api.wordpress.com/rest/v1.1/sites/www.mysite.com/posts?number=100&fields=title,excerpt,featured_image 

returns only the specified fields. How do I this with the v2 API?

Outboard

v2.wp-api.org/extending/modifying – Clarkclarke

What don't you get? The REST API v2 returns a certain set of default fields, and if you want different ones, then you have to implement this as described in that document. – Clarkclarke

Don't have access to the client's CP. I was hoping I could do that straight from the URL. – Outboard

Answer 1

Here's how to access the a list of titles and excerpts using REST API v2:

https://www.example.com/wp-json/wp/v2/posts?_fields[]=title&_fields[]=excerpt&per_page=100&offset=100

Principe

Reference – Euphorbia

It also accepts request like this: example.com/wp-json/wp/v2/… – Burushaski

@Hardik, thanks for the great shortcut there! – Kwasi

update: it works with v3 too – Yamauchi

God that documentation is trash. Where are the list of fields you can query? – Population

Answer 2

https://developer.wordpress.org/rest-api/extending-the-rest-api/modifying-responses/

As it states there, the REST API v2 returns a certain set of default fields, and if you want different ones, then you have to implement this as described in that document.

Clarkclarke

Answer 3

The easy solution to this issue would be to use the ACF to REST API or an equivalent plugin that can extend the REST API for you. I have used this plugin on many sites successfully.

If this is not possible then you will need to modify the response as has been outlined by other answers. You can read more about that here.

Veal

Answer 4

You can use ?_fields[]=title&_fields[]=excerpt

Hand

Isn't it already the solution given by @mattmaldre ? – Triage