Headless Authentication with Dynamics CRM online Web API – Without using ADAL {Part-I}

Well this topic has been discussed again over multiple times. And I myself has written a blog on how to do a headless authentication (without user intervention) between Dynamics CRM Online Web API and Native APP (console APP) – https://debajmecrm.com/2016/06/21/dynamics-crm-web-api-login-authentication-screen/

If you go through the above post, I have used ADAL (active directory authentication library) to query the authorization token and then use the authorization token to query the Dynamics CRM Web API. However there is a catch to this.

This headless authentication was only possible with Native APPs (console APPs) since they just required Client ID’s and does not require the Client Secret to actually generate the token. And hence I was not able to use this method to get the token from a Web Application which would require the Client_Secret.

And while I was doing a training session on this recently, I was asked the question. Is there…