Rest API format

[JCH215]

I have downloaded and install a VM on virtual box. The web ui works fine so that I can search through a web browser. what is the WEB API URL I can use in my own code?

it says in https://www.opensemanticsearch.org/doc/admin/rest-api
Search or read data
We won't reinvent all wheels, so use the Rest-API of Solr for searching or / and getting data in XML or JSON format or use Solr Client APIs to get data with your favorite programming language.

But I am new to this, Can you give me an example of the Rest API url?
Thank you so much
James