require "socket"

# goes with tcp_server.cr

socket = TCPSocket.new "127.0.0.1", 9000

loop do
  socket << "message"
end

Macbook-Pro-3:crystal ms$ crystal tcp_server.cr
listen on 127.0.0.1:9000
127.0.0.1:53569 connected
113
0
0
0
0
0
0
0
0