send a binary message to a udp server in ruby

To send a binary message to a UDP server in Ruby, you can use the send method of the UDPSocket class. Here's an example:

main.rb
require 'socket'

# Set up a UDP socket
socket = UDPSocket.new

# Define the address and port of the UDP server
server_address = '127.0.0.1'
server_port = 12345

# Define the binary message to send
message = [0x01, 0x02, 0x03].pack('C*')

# Send the message to the server
socket.send(message, 0, server_address, server_port)

# Close the socket
socket.close
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In this example, we first create a new instance of the UDPSocket class. We then define the address and port of the UDP server we want to send the message to. We also define a binary message to send, which is an array of 8-bit integers (using the pack method to convert the integers to binary).

We then use the send method of our UDP socket to send the message to the server. The 0 parameter is a flag that indicates that no special options should be used when sending the message.

Finally, we close the socket using the close method.