Binderhub Service in an existing Jupyterhub environment

[guillermogarza]

I am trying to install Binderhub on an existing Jupyterhub environment
So for, I have successfully followed the steps described in: Connect with a JupyterHub installation — binderhub-service documentation

I have reached to the point where it says:
… you should see a styled 404 page! Success - this means BinderHub is now connected to JupyterHub, even if the end users can’t see it yet. Let’s connect them!

But I dont understand what I am supposed to do now at this point? how am I supposed to interact with Binder? Do we have a set of APIs for this?

Thanks in advance.

cc: @yuvipanda

[guillermogarza]

I have figure it out how to use the Binder API. However, I cant make Binder create the server successfully as show in the screenshot attached.

Also, I dont understand why it is trying to create a Temporary user, I thought it would use the same user when I logged in into Jupyterhub