Support passing additional information to the Strategy for use during Verify

[danalloway]

I have a use-case where my datasource / service instance lives on the Remix AppContext object and is not available when the auth strategy gets initialized.

I would like to be able to pass in some additional parameters from the action/loader when I call auth.authenticate() and then make those parameters available on the verify function call

[sergiodxa]

It has been a long time, but I just merged #113 which let strategies receive the context as an option from the authenticate method, so you can do:

export let action: ActionFunction = async ({ request, context }) => {
  return await authenticator.authenticate("strategy", request, {
    context, // this is new
    successRedirect: "/",
    failureRedirect: "/login"
  })
}

Right now, it's up to the strategy to use or not this context or make it available in the verify callback, but it should be possible to create a strategy using it yourself.