Android Question Server-side events support

[Acuario]

I see that there is a library for Websocket support but is there support for Server-side events in B4A?
In the ESP8266 world the 'improved' MQTT server (PangolinMQTT) uses a version of the ESPAsyncWebServer that no longer supports Websockets, only Server-side events.
As I want to develop an app for local use for configuring a server (my remote app uses MQTT) I'm stuck with HTTP if there is no support (unless there are any other suggestions of communication protocol).

 

[Erel]

Why not use MQTT directly?

OkHttp doesn't support server events.

 

[Acuario]

To use MQTT I would need to run a broker somewhere or have internet connectivity to connect to a remote broker.
Basically I have a standalone, non-internet connected ESP8266 running as an access point with a web server. I want to connect to it and configure it with an app.

 

[Gandalf]

I had the similar task to configure ESP8266 without Internet access, directly connecting via phone with app. I used Network library, regular socket, and AsyncStreamText module at Android side. On ESP8266 there's WiFiServer and WiFiClient. It works as clear text protocol like Telnet. Later I have added web interface on ESP8266 using other port number, but found chip performance unsatisfactory for it - so I still use the first method of configuration.