OpenAM 15.x IDP Initiated Flow via Rest API

[neel-quantasis]

I've setup OpenAM v15.x using steps mentioned here

Current Implemented flow

1. Open IdP initiated flow link on browser
2. Login on OpenAM Page
3. Logged in on SP using SSO

I want to implement the above flow without opening IdP initiated flow on the browser
Are there any RestAPIs that I can consume?