Question Custom Transport

Yes, it is possible to implement custom transport. You need to implement a INetworkInterface that implement the in that web-etc transport layer.
I would suggest look at the Uniyt.Networking.Transport documentation and check how they implemented, for example the WebSocketNetworkInteface or the TCP/UDPNetworkInteface

 

It has to be done before NetworkStreamReceiveSystem.OnCreate which happens during world creation.
When we've done this in the past we have used a custom bootstrap. Make a class extending ClientServerBootstrap and in initialize assign the driver constructor before calling base.Initialize - or if you already have a bootstrap doing something else just add assignment of the driver constructor there.

The code you need to copy when creating a driver constructor is different in 1.0 experimental because we added support for multiple network drivers on the server. So you can have a single server accepting connections on multiple different network drivers at the same time (one for UDP and one for IPC so client hosted servers don't need a socket for example).

 

The right way to register you driver is to use as @skiplist said a custom INetworkStreamDriverConstructor.
In 1.0-exp a custom INetworkStreamDriverConstructor looks like this:

Code (csharp):

1.  
2. public struct MyCustomDriverConstructor : INetworkStreamDriverConstructor
3. {
4.     public void CreateClientDriver(World world, ref NetworkDriverStore driverStore, NetDebug netDebug)
5.     {
6.         NetworkSettings settings = DefaultDriverBuilder.GetDefaultSettings();
7.         var driverInstance = DefaultDriverBuilder,CreateClientNetworkDriver(new MyNetworkInterface(), settings);
8.         driverStore.RegisterDriver(TransportType.Socket, driverInstance);
9.     }
10.  
11.     public void CreateServerDriver(World world, ref NetworkDriverStore driverStore, NetDebug netDebug)
12.     {
13.         NetworkSettings settings = DefaultDriverBuilder.GetDefaultSettings();
14.         var driverInstance = DefaultDriverBuilder,CreateServerNetworkDriver(new MyNetworkInterface(), settings);
15.         driverStore.RegisterDriver(TransportType.Socket, driverInstance);
16.     }
17. }
18.  

We provided a bunch of utility methods in the DefaultDriverBuilder class to get the default NetworkSettings, setup the default pipelines etc.

You then just need to register this driver constructor in your custom bootstrap

Code (csharp):

1.  
2. class MyCustomNetworkBootstrap :ClientServerBootstrap
3. {
4.      override public virtual bool Initialize(string defaultWorldName)
5.       {
6.              NetworkStreamReceiveSystem.DriverConstructor = new MyCustomDriverConstructor();
7.              return base.Initialize(defaultWorldName);
8.       }
9. }
10.