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REST API - Filter Fields

Filter the properties returned by the Wordpress rest api V2

The wp-rest-api-v2 returns a lot of properties. It could be very useful (or mobile-data-friendly) to only return the properties needed by the application.

If you only want titles and links of some articles it doesn't make sense to return the content or the excerpt.

This isn't limited to posts, it also works on custom posttypes, categories, pages, terms, taxonomies and comments.

Instead of returning:

  "id": 2138,
  "date": "2015-10-25T15:31:03",
  "guid": {
    "rendered": ""
  "modified": "2015-10-25T15:31:03",
  "modified_gmt": "2015-10-25T14:31:03",
  "slug": "rechtenvrije-fotos",
  "type": "post",
  "link": "",
  "title": {
    "rendered": "Rechtenvrije foto’s"
  "content": {
    "rendered": ".. A lot of content .. "
  "excerpt": {
    "rendered": " .. A lot of content ..."
  "author": 2,
  "featured_image": 2139,
  "comment_status": "open",
  "ping_status": "open",
  "sticky": false,
  "format": "standard",
  //.. even more tags ....

It can return (with fields=id,title.rendered,link as GET parameter)

  "id": 2138,
  "link": "",
  "title": {
    "rendered": "Rechtenvrije foto’s"


  1. If you specify fields so it wouldn't return data the default response is send back to the client.
  2. (for developers) something wrong with this plugin? Github
  3. If you like the plugin buy me a beer
Author Stephan van Rooij
Contributors svrooij
Tags api, json, REST, rest-api

Installing this plugin is really easy.

Just search the plugin directory for rest api filter fields and press install. Or download it right from Github and copy the rest-api-filter-fields directory in the archive to wp-content/plugins/.


  • Support for embedded fields (when you include the '_embed' GET parameter!).
  • The _links field doesn't get stripped anymore.
  • Taking the first element of an collection with first, like
  • Moved all the logic to a separate class, so it won't intervene the Wordpress core.


  • Updated readme.


  • Filter on nested fields Issue #1 implemented. Please test and leave a response here.


  • Added filtering for categories Issue #4
  • Tested on Wordpress version 4.6.1


  • Bumped tested wordpress version to 4.4
  • Metadata update (personal website is https only :D)


  • First release of rest-api-filter-fields

Do you add data to the response?

No, this plugin only removes entries. When you want to add featured_images, I recommend using better-rest-api-featured-images

How about nested propterties?

You can filter on nested properties with a '.' like 'title.rendered'. Not sure if this also works on arrays. Existing issues or Submit issue

Does this also work for my custom posttype?

Yes, we picked 20 as priority (default = 10) for activating. This mean this plugin is probably activated last, so all custom post types should already be loaded. But this only works if you made it public for the api.

I found a bug, what should I do?

All the bugs/issues are maintained on so please create an issue (or a pull request with a fix there)

Version 1.0.5

Requires WordPress version: 4.4 or higher

Compatible up to: 4.7.2

Last Updated 09 Jan 2017

Date Added: 29 Oct 2015

Plugin Homepage


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