I want to know how to get map data and how to measure distance on map data.

Hello. I wrote this to ask you a few questions.

I want to measure the distance on the map data using Swift's language. However, even if I look at the public data API or the Ministry of Land, Infrastructure and Transport, I don't see maps such as Google Maps or Naver Maps, so I want to know how to get map data.

Also, for example, if you have map data, I wonder how you can get the distance between A and B, but I want to know what technology keywords exist rather than code.

For example, what I'm thinking about right now is Map data.

It may be a very complicated question, but I would appreciate it if you could let me know.