Relay Hybrid Connection library for Azure and Reactive Extensions

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Background

I wanted to make it super easy to set up a Relay Hybrid Connection for Azure. And I wanted to base it on Reactive Extensions (Rx). Rx is an API for asynchronous programming with observable streams and make perfect sense in a relay scenario.

For an introduction to Azure Relay Hybrid Connects see: Get started with Relay Hybrid Connections

How to use

Using this library is super easy. Follow these examples or see the console sample application

Creating a listener

var relayListener = new RelayListenerService();

var listener = await relayListener.RelayListenerInitializeAsync(relayNameSpace, connectionName, keyName, key);

listener.relayConnectionStateObservable.Subscribe(state =>
    {
        Console.WriteLine($"Listener state: {state}");
    },
    ex => Console.WriteLine($"State Listener State exception: {ex}"),
    () => Console.WriteLine("State Listener Completed"));


listener.messageObservable.Subscribe(async msg =>
    {
        Console.WriteLine($"Listener Recieved Message: {msg.IncomingMessage}");

		// Send an echo back to the client
        await msg.ResponseMessageAsync($"Echo: {msg.IncomingMessage}");
    },
    ex => Console.WriteLine($"Message Listener exception: {ex}"),
    () => Console.WriteLine("Message Listener Completed"));

Creating a client

var relayClient = new RelayClientService();

var clientObservable = await relayClient.RelayClintObservableInitializeAsync(relayNameSpace, connectionName, keyName, key);

clientObservable.Subscribe(msg =>
{
    Console.WriteLine($"Client received: {msg}");
},
ex => Console.WriteLine($"Client exception: {ex}"),
() => Console.WriteLine("Client Completed"));

Sending a message from the client

await relayClient.SendAsync("Test");

Note: The client myst be initilized before messages can be send.

1iveowl / RelayHybridConnRx.Azure