How to Read POST Data and URL Parameters on ESP8266 Using Arduino IDE and ESP8266WebServer

Hello, please help me to add POST support.
When I programmed ESP in NODEMC in LUA there was no problem, I checked the payload content and looked for what I was interested in.
Here it is no longer so rosy.
I currently use ESP to control relays using GET, but sending text from a WEB page to a server that sits on ESP requires reading it (the text) from a URL, unfortunately I don't know how to read it in the program.
How to read the POST in the Arduino I don't know either, can you help me?

Here is the code:

[/code]

I solved the POST handling like this:

Fellow Suser, this is exactly what I needed. It's even simpler than in LUA because you can send several values at once without fiddling around. Thanks a lot again.
I'm starting to like Arduino more and more, no need to reinvent the wheel

I'll leave the topic open for a while if anyone has any questions, but I think user code suser222 explains everything.