Power BI Embedding Apps own Data

Hi,

I am looking for some help in power bi Embedding Apps own data.

I have create the application id, workspace and also report, i downloaded the package and ran in visual studio and it delivered on web page pretty nicely, but the files in the package is very difficult to understand the link.

I want to use this in some kind of simple javascript along with html so that I can understand the working.

Please help me with simple javascript where in I can put Application id, workspace id , report id along with power bi pro username and password in secure way.

Thanks & Regards,

Syed