PatreonAPI.php

<?php
namespace App;
class PatreonAPI {
    private $access_token;
    public function __construct($access_token) {
        $this->access_token = $access_token;
    }
    public function fetch_user() {
        return $this->__get_json('current_user');
    }
    public function fetch_campaign_and_patrons() {
        return $this->__get_json('current_user/campaigns?include=rewards,creator,goals,pledges');
    }
    public function fetch_creator_info() {
        return $this->__get_json('current_user/campaigns?include=creator');
    }
    public function fetch_campaign() {
        return $this->__get_json('current_user/campaigns?include=rewards,creator,goals');
    }
    private function __get_json($suffix) {
        $api_endpoint = 'http://api.patreon.com/oauth2/api/' . $suffix;
        $headers = array(
            'Authorization' => 'Bearer ' . $this->access_token,
        );
        $api_request = array(
            'headers' => $headers,
            'method'  => 'GET',
        );
        $response = wp_remote_request( $api_endpoint, $api_request );
        return json_decode($response['body'], true);
    }
}