How game statistics are obtained in ladder pages

[Rocketeer]

Greetings commanders!

I am a big fan of YR. Very recently I realized CnCNet ladder implements some really cool features I want. For example, https://ladder.cncnet.org/ladder/11-2019/yr/games/111800, this is a typical ladder game stats page that shows which type and how many units/buildings bought/killed/left in a game. I was wondering how all these statistics were acquired technically.

The reason I want these data is that I need to do the same thing. I'd like to develop a game bot for YR, but I find it difficult getting in-game data at runtime. Last time I had to do pure image processing and recognition, which is ineffective(You can see how badly it performs at https://www.bilibili.com/video/av23553421)

Please let me know if anybody has an idea about how I should get these data. Appreciate it!

Thank you!