title: Does Azure B2C provide REST API for login?
body: <p>I have one application integrated with Azure B2C directory. Our problem is, login page is redirecting to Azure B2C portal (Own custom page) for authenticate or Authorize users and then revert back to the original website.</p>
  <p>I need to open popup with my own website login design and at the backend, I am able to call Azure B2C REST api to validate users.</p>
  <p>How I can create REST API for Login in Azure B2C portal?</p>
  <p>Let me know if you have any information about the same.</p>