Confused by binderhub/launcher extra_args

The launch function takes an extra_args param that will be posted to the jupyterhub api. I am struggling to figure out how to set these. I assumed maybe adding ?myparam=foobar to the url might work. However, i do not see this documented anywhere and it doesn’t seem to work for me.

I am using:


My goal is to pass the profile slug to jupyterhub to avoid conflicts with other profiles not meant for binders.

The document you’ve linked to describes an internal BinderHub Python function. It’s not exposed via any public URL parameters.

Fair enough. It would however be quite nice if we could have Binderhub specify a profile in Jupyterhub.

p.s. It doesn’t really seem internal if it’s documented on the Launcher spec?

Also, this: Query parameter naming scheme? · Issue #712 · jupyterhub/binderhub · GitHub