title: Identity Server Password Grant to External Providers
body: <p>I have implemented Identity Server 4 STS, and integrated it with external providers, AzureAD, and other custom on-prem OpenIdConnect STS. This works well for native OpenIdConnect grant types like Implicit and Hybrid, because they use HTTP redirects.</p>
  
  <p>I wanted to know if it's possible to support <code>password</code> grant type to those external identity providers?</p>
  
  <p>For our on on-prem STS I can implement <code>IResourceOwnerPasswordValidator</code> and using api call validate user password on the back channel.</p>
  
  <p>Has anyone attempted to implement similar scenario with AzureAD?</p>