Communication JavaScript application (client) and a Julia application (server)

[Jeff_Emanuel]

@Ricardo_Lima

using Sockets
@async begin
    server = listen(ip"127.0.0.1", 2812)
    while true
        sock = accept(server)

You should use a WebSocket library unless you want to implement the WebSocket protocol RFC 6455 - The WebSocket Protocol over a TCP socket yourself. Try GitHub - JuliaWeb/WebSockets.jl: A WebSockets library for Julia.