FireSharp

//**Install v2**
Install-Package FireSharp

//**Install v1**
Install-Package FireSharp -Version 1.1.0

  IFirebaseConfig config = new FirebaseConfig
  {
     AuthSecret = "your_firebase_secret",
     BasePath = "https://yourfirebase.firebaseio.com/"
  };

IFirebaseClient  client = new FirebaseClient(config);

var todo = new Todo {
                name = "Execute SET",
                priority = 2
            };
SetResponse response = await _client.SetAsync("todos/set", todo);
Todo result = response.ResultAs(); //The response will contain the data written

 var todo = new Todo {
                name = "Execute PUSH",
                priority = 2
            };
PushResponse response =await  _client.PushAsync("todos/push", todo);
response.Result.name //The result will contain the child name of the new data that was added

 FirebaseResponse response = await _client.GetAsync("todos/set");
 Todo todo=response.ResultAs(); //The response will contain the data being retreived

var todo = new Todo {
                name = "Execute UPDATE!",
                priority = 1
            };

FirebaseResponse response =await  _client.UpdateAsync("todos/set", todo);
Todo todo = response.ResultAs(); //The response will contain the data written

FirebaseResponse response =await  _client.DeleteAsync("todos"); //Deletes todos collection
Console.WriteLine(response.StatusCode);

EventStreamResponse response = await _client.OnAsync("chat", (sender, args, context) => {
       System.Console.WriteLine(args.Data);
});

//Call dispose to stop listening for events
response.Dispose();