var request = require("request");

var options = { method: 'POST',
  url: 'https://hostname.com/wp-json/asdf/route/',
  headers:
   { 'Postman-Token': 'some-numbers',
     'cache-control': 'no-cache',
     'Content-Type': 'application/json' },
  body:
   { username: 'username',
     email: 'email@gmail.com',
     password: 'password' },
  json: true };

request(options, function (error, response, body) {
  if (error) throw new Error(error);

  console.log(body);
});

var unirest = require("unirest");

var req = unirest("POST", "https://hostname.com/wp-json/asdf/route/");

req.headers({
  "Postman-Token": "some-numbers",
  "cache-control": "no-cache",
  "Content-Type": "application/json"
});

req.type("json");
req.send({
  "username": "username",
  "email": "email@gmail.com",
  "password": "password"
});

req.end(function (res) {
  if (res.error) throw new Error(res.error);

  console.log(res.body);
});

add_action( 'rest_api_init', function () {
register_rest_route( 'asdf', '/route/', array(
      'methods' => 'POST',
      'callback' => 'subscribe_user',
    ) );
} );


function subscribe_user( $data ) {
    $json_result = json_decode($data->get_body(), true); //note second param is for setting this to an associative array
    $username = $json_result["email"];
    $email = $json_result["email"];
    $password = $json_result["password"];

    $user_id = wp_create_user( $username, $password, $email );
    if ( is_wp_error( $user_id ) ) {
        return $user_id->get_error_message();
    }
    else {
        return 'User successfully registered!';
    }
}