Noob in ESP land

Hi I'm John and I'm not new with arduino (more than 10 years) but I'm new with wireless protocols. in my project I designed it with a esp 8266, but i'm struggling to understand this thing. I worked before with Bluetooth and NRF, but this thing is a little more complex.

So, I need to send a array [10] via wifi to an app, no problem with app, just how I make this thing work.

I don't have a code, working in it right now, without the esp.

Somebody plz can "teach" me how to just create a data server, so the app can read and change the array?
Thanks!

The most important thing in this is to choose the hardware you want to use.

I would not recommend using the Arduino + ESP-01.

I would buy an all-in-one module.

.

This website was very helpful for me: https://randomnerdtutorials.com/

Koepel:
This website was very helpful for me: https://randomnerdtutorials.com/

Hi, thanks! it's pretty good website.

I'm trying to solve it! Thanks!