SO 38990950

so-38990950.lua

-- https://stackoverflow.com/questions/38990950/simulating-esp8266-server-multithreading
someint = 5
a = 1

srv:listen(8080,function(conn)
    conn:on("receive", function(client,request)
        client:send(someint);
        client:close(); -- btw, you should wait for 'sent' event before closing, see http://nodemcu.readthedocs.io/en/latest/en/modules/net/#example_6
    end)
end)

while a do
    someint = someint + 1
end

Thank you !