title: How to get current customer id magento rest api
body: <p>I want to use magento rest api authorization for my web application customers, I found in docs that there is <code>/customers/:customerId</code> request, to get information about user, but I can't understand, how to get <code>customerId</code> to make this request. Is there such a method in Magento REST API and if not, how I can get authorized customer Id via REST API.</p>