REST API to Power BI

Hey all,

i am trying to use REST API to GET reports from another place and use this reports in Power BI. There is a need for POST to generate key, and a GET method to get the actual report. Anyone have done this before and can help me? i am looking at postman and am able to generate key and get reports there, but not sure how to use it in Power BI. PBI file also needs a scheduled refresh.