receive commands by telnet

[lowepalma]

RELSOLVED !
I need help to understand how liquid soup can receive telnet commands to do functions.

Example but that it works correctly:

#Define a function that responds "hello" when called and checks the password
def say_hello(password) =
if password == "your_password" then
"hello"
else
"Incorrect password"
end
end

#Define the Telnet server and associate the "hello" command with the say_hello function
server = server.telnet(port = 1234)
server.register("hello", say_hello)

[vitoyucepi]

Hi @lowepalma,

You can find helpful information about registering the telnet commands on page 152 of the book.

As for your example

# Define a function that responds "hello" when called and checks the password
def say_hello(password)
  if password == "your_password" then
    "hello"
  else
    "Incorrect password"
  end
end

# Configure telnet server
settings.server.telnet.set(true)
# settings.server.telnet.revdns.set(false)
# settings.server.telnet.port.set(1234)
# settings.server.telnet.bind_addr.set("127.0.0.1")

# Associate the "hello" command with the say_hello function
server.register("hello", say_hello)

If you want to enable the telnet server, then you should use settings instead of server.telnet.
The server.telnet function returns unit(None or undefined).
You should not assign it to the server variable because it's a global variable, and you will not be able to use it anymore.

According to the function documentation.
You have to supply

1. Name of the command as a string. In your case, it's "hello".
2. Callback to function that consumes string and will return a string.

Additionally, you can provide

1. Namespace as a string. It will work as a prefix for your command.
2. Description as a string that will help the user to understand what the command will do.
3. Usage as a string. This will show the user how to use your command.

I suggest using harbor.http instead of telnet.
The information you're looking for can be found on page 156 of the book.
But it will change significantly in the upcoming release version 2.2.

[lowepalma]

I would need a complete example, where I could see how it works, I am looking for liquidsoap to send an icecast url through a command, connect to that url, stop the list and then if I send another stop command, stop and continue the list. I can find an example somewhere.

[vitoyucepi]

I'm sorry, I'm not sure what you are looking for. Could you please clarify?
The workflow description appears to be a unique script.
I think it will require thoughtful research and analysis. Maybe you'll find some ready-to-use parts for your idea. But their recombination and compilation will be up to you.

[lowepalma]

Resolved !