I want to use Wordpress REST API to Login and get user data on android app.

I am using wp_users table for user and a custom table for user info .

I tried writing my own REST API but i for that i have to make $wpdb accessible outside Wordpress installation.

Please provide yours solution having API-KEY , or something similar , feature too.


  • Have you found the solution ? May 18, 2016 at 6:12
  • @shuvro , yes i have the solution , please check my answer. all the best with yours product May 19, 2016 at 7:35
  • Have you read this post on make?
    – kaiser
    Oct 23, 2016 at 13:10
  • man your solution was great but wordpress passwords are hashed :/ how did you log in ? Jul 26, 2018 at 19:09

2 Answers 2


I found the simplest solution using the WP-REST API plugin,first set this in yours environment :

1.) In your themes functions.php register API endpoint hooks:

add_action( 'rest_api_init', 'register_api_hooks' );
// API custom endpoints for WP-REST API
function register_api_hooks() {

        'custom-plugin', '/login/',
            'methods'  => 'POST',
            'callback' => 'login',

    function login() {

        $output = array();

        // Your logic goes here.
        return $output;


2.) By default, if you have pretty permalinks enabled, the WordPress REST API “lives” at /wp-json/. Then the API endpoint is accessible at youdomain.com/wp-json/custom-plugin/login with a POST request.

Notice that custom-plugin/login is actually defined in register_rest_route in PHP function register_api_hooks()

For API key I am using Wordpress Nonces - pretty straightforward as in my discussion here . I hope these answers are useful for all full stack developers who are new to Wordpress REST API

  • 1
    anyone looking for this functions.php file? Here it is -> wordpress\wp-content\themes\themeName\functions.php Jul 26, 2018 at 18:55
  • 2
    I looks like that login function does nothing, what goes in // Your logic goes here ?
    – conor909
    Dec 2, 2020 at 19:51

If you just want to user login and get user details you can use and excellent plugin called "JSON API AUTH"


There are following methods available: validate_auth_cookie, generate_auth_cookie, clear_auth_cookie, get_currentuserinfo

nonce can be created by calling http://localhost/api/get_nonce/?controller=auth&method=generate_auth_cookie

You can then use ‘nonce’ value to generate cookie. http://localhost/api/auth/generate_auth_cookie/?nonce=f4320f4a67&username=Catherine&password=password-here

Use cookie like this with your other controller calls: http://localhost/api/contoller-name/method-name/?cookie=Catherine|1392018917|3ad7b9f1c5c2cccb569c8a82119ca4fd

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