How to connect esp8266 to android?

Question

Java

Good day dear. A question arose, in search of an answer to which I was already lost. I am making an android application that will receive some data and draw it on a chart. At the moment, the functionality of the application.
1) Searching for a wifi access point
2) Connecting to an access point
3) Getting the ip address of the access point
The esp8266 microcontroller, of course, was not programmed by me. It constantly sends some n-th data in json in a loop.
At the moment, you need to receive this data on an android device, the problem is how to request it? And this board acts as a client and the bucket should be in the role of a server. I am confused, if anyone has any information, I will be grateful if you share it.

Answer 1

If in the role of a server, then the IP address of the server must be registered on the board. Assign this address to the connection in android. And then write the service in which the web server sits