connectcreds::connect_viewer_token() fails when current shiny session is a namespaced session (ie session_proxy)

[bschulth]

When using shiny::ns() in modules, connectcreds::connect_viewer_token() fails with:

Error:
! session must be a Shiny session object, not a <session_proxy> object.

The issue stems from:

• https://github.com/posit-dev/connectcreds/blob/main/R/viewer-based-credentials.R#L197-L206

• You can of course bypass this by rewriting your shiny module to pass the parent session into the module so that you have reference to the real shiny session object.

  • However, this does no good when using the odbc::databricks() driver because there is no way (that I can see) to pass any of the connectcreds::connect_viewer_token() arguments into the odbc package for it to use.

It's basically this error:

x = shiny::MockShinySession$new()$makeScope("test")
if (!missing(x) && inherits(x, "ShinySession")) {
    return(invisible(x))
}
rlang:::stop_input_type(
    x,
    "a Shiny session object"
)