Programmatically sign in - power bi

Question

I'm trying to write a web app which embeds some Power BI reports. The data is on-premises so I cannot use the new solution available (Power BI Embedded). Now the problem with using the old approach is that the consumer of the web page needs to be a Power BI user which needs to sign in in order for the web app to finally get an authentication token (there is a couple of page redirections that need to happen before). 

So my question is, is there a way to do the Power BI Sign In in a programmatic way? so in that way I can just use one Power BI account for getting the content.

Answer 1

Basically:

POST request to: https://login.microsoftonline.com/common/oauth2/token

Body, form-url-encoded:

• grant_type: "password"
• scope: "openid"
• resource: "https://analysis.windows.net/powerbi/api"
• client_id: your client id
• client_secret: your client secret
• username: that username
• password: that usernames password

Then you directly get the token.

Also it might be good to consider security concerns like described here: