.NET (C#) Roon Api implementation

Tinkering Roon API
1

I just now published a C# implementation of the Roon API in my GitHub.

https://github.com/ChristianRiedl/RoonApi

Is there a need for C# based Roon services ?

2

Hi,
I load the C# API. Start debug the TestApi. Connection to the core seems o.k.
The comboZone will not fill with zones of selected core.
Do you have an idea?

Daniel

3

You must activate the extension in roon app (settings -> extensions)

4

Thanks :wink:
Perfect work!

5

I will use the api in a uwp Project to use the Surface dial

After

  private async void MainPage1_Loading(FrameworkElement sender, object args)
    {
        await DiscoverCore();

I got following exception

System.IO.FileNotFoundException: “Could not load file or assembly ‘System.Security.Permissions, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51’. Das System kann die angegebene Datei nicht finden.”

Nuget deliver only v4.4.0

After Install

System.IO.FileLoadException: “Could not load file or assembly ‘System.Security.Permissions, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51’. The located assembly’s manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)”

Can you help ?

Daniel

6

Daniel, I made some changes to make it work in UWP (netstandard 1.3). As I did not find a function to get my own IP address in netstandard 1.3 I made a change in Discovery.cs : I removed GetMyIPAddress and provided the own IP address in the constructor.

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>netstandard1.3</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="1.1.2" />
    <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
    <PackageReference Include="System.Net.WebSockets.Client" Version="4.3.2" />
  </ItemGroup>

</Project>
7

@meldano : I checked in a new version with netstandard 1.3, a lot of renaming, added setting api.
I recommend to switch to this version.

8

O.k. Thanks a lot!
I will download your new lib and check it.

Daniel

9

Hi Christian,

I add the new RoonApi Lib to my UWP Project and Change some Code in the main page.
I got the same error

private async void MainPage1_Loading(FrameworkElement sender, object args)
{
await DiscoverCore();

        if (_core == null)
            return;

        _api.StartReceiver(_core.CoreIPAddress, _core.HttpPort, _roonRegister);
    }

System.IO.FileNotFoundException: “Could not load file or assembly ‘System.Security.Permissions, Version=4.0.1.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51’. Das System kann die angegebene Datei nicht finden.”

Do you have any idea ?

10

@meldano : I checked in a working UWP project. Important : enable “Private Network” capability.
Small change in RoonApi constructor.
My version does not use System.Security.Permissions DLL !!

11

Is there anybody who use the lib without problems ?

12

@meldano : I am afraid we are the only .NET guys in this kind of universe. I have currently no time to implement a fullscale UWP sample. But I im interested to support you to bring you app up and running. I use my library in an ASP Net Core site and in a Xamarin app without any problems. Are you able to run latest version samples from my github ? You can contact me at ric@rts.co.at.

13

Hey @Christian_Riedl,
This has been really useful for exploring the Roon API via C#.
It all works fine for me, I am using the WinForms example with 4.6.1
Looks like there are 3 c# people here after all :wink:

14

Thanks for make this API. After spending some time using the http api in javascript i saw this thread.

I have one thing that really puzzle me and its driving me nuts

The following code works and populate the list over avaliable zones when i manually click the switch and do return the three zones.

private void getzone_Toggled(object sender, RoutedEventArgs e)
{ if (toggleswitch.IsOn is true)
{ foreach (var zone in _apiTransport.Zones.Values)
{ log.Show(zone.DisplayName + " " + zone.ZoneId);} }

Since i want the list to populate by itself i made a routine that does the same, but it doesnt.
It always returns 0.

private void getZones()
{ foreach (var zone in _apiTransport.Zones.Values)
{ log.Show(zone.DisplayName + " " + zone.ZoneId);} }

i do wonder - is there a bulletproof way to fetch the list over the zones without have to actually click something?

kind regards
haavard