Randomly Featured WAMP Component Creation

This code creates a WAMP component with a randomly selected feature from the Autobahn library, using one of the features such as session, registration, publication, or subscription.

Technology Stack : Autobahn, WAMP (WebSocket and XMPP Protocol), Twisted

Code Type : The type of code

Code Difficulty : Intermediate

                
                    
from random import choice
from autobahn import wamp
from twisted.internet import reactor
from twisted.internet.defer import Deferred

def random_wamp_component():
    """
    This function creates a random WAMP (WebSocket and XMPP Protocol) component using the Autobahn library.
    It randomly selects a feature from the Autobahn library and implements it.
    """

    # Randomly choose a feature from the Autobahn library
    feature = choice(["session", "registration", "publication", "subscription"])

    # Define the function based on the selected feature
    if feature == "session":
        def my_component(url, realm):
            @wamp.session_component(realm=realm)
            def session(session, details):
                print("Session attached")
                session.on_close.append(lambda: print("Session closed"))
        return my_component
    elif feature == "registration":
        def my_component(url, realm):
            @wamp.session_component(realm=realm)
            @wamp.registration_component()
            def registration(session, details):
                @session.register("com.example.hello")
                def hello(msg):
                    return "Hello " + msg
        return my_component
    elif feature == "publication":
        def my_component(url, realm):
            @wamp.session_component(realm=realm)
            @wamp.publication_component()
            def publication(session, details):
                @session.publish("com.example.topic")
                def publish(msg):
                    print("Published message:", msg)
        return my_component
    elif feature == "subscription":
        def my_component(url, realm):
            @wamp.session_component(realm=realm)
            @wamp.subscription_component()
            def subscription(session, details):
                @session.subscribe("com.example.topic")
                def on_message(msg):
                    print("Received message:", msg)
        return my_component

# Example usage
if __name__ == "__main__":
    component = random_wamp_component()
    reactor.run(component("ws://localhost:8080", "realm1"))