How to write API script by using citySDK API

My city, Istanbul is releasing free information such as on duty pharmacy, bus lines, online transportation by using citySDK api. However, I do not know how to start to get these information into the Home assistant. For example, I would like to add nearby pharmacies on my home zone and or nearest bus station information. I really would like to write my own python script to retrieves api and show in home assistant. Can someone help me where to start? any example, or similar project to start with?
http://devcitysdk.ibb.gov.tr/