Creating Stripe "checkout_session" in application controller?

[dewey]

Hey, I'm looking to have various "upsell" modals across multiple views in my Rails project. I don't want to redirect to a "checkout" page, so in my case I'd need to have the checkout_session available in all controllers so I can use the session in my checkout button.

<%= render partial: "pay/stripe/checkout_button", locals: { session: @checkout_session, title: "Buy" } %>

I was told that I could put it in my application controller:

class ApplicationController < ActionController::Base
  before_action :set_payment_session

  def set_payment_session
    [ ... ]
  end
end

Later on I realized in the Stripe web interface that there's a lot of billing_portal.session.created web hook events which I assume are connected to having it in the ApplicationController. I'd assume that also has an influence on the page load. What would you recommend in that case?

Just link to a central checkout page or is there another way?

Thanks!

[excid3]

I would just have the modal submit to an action that creates a session and redirects to it. Then you have it nicely organized and you can still have the modals easily.

[dewey]

Hey Chris, thanks for the reply! I think I understand the approach. So I'd create a checkouts controller that could look like this:

class CheckoutsController < ApplicationController
  before_action :set_payment_session, :only => :create

  def set_payment_session
    if user_signed_in?
      current_user.set_payment_processor :stripe
      current_user.payment_processor.customer
    end
  end

  def create
    @checkout_session = current_user.payment_processor.checkout(
      mode: "subscription",
      line_items: "price_1Lmjb34987sRx0bAyt3gCKMk"
    )
    redirect_to @checkout_session.url, status: 303, allow_other_host: true
  end
end

In my views I'd then just have calls like the following to open the Stripe Checkout. In the future if I'd have multiple products I'd just pass the line_items through the link_to and dynamically create the correct URLs.

    <%= link_to "buy", checkout_path, :action => 'create' %>

To confirm I'm understanding the usual approach: The pay/stripe/checkout_button partial is just responsible for dynamically creating the URL without a redirect by injecting the session-id into the @checkout_session.url directly, saving one round trip.

Thanks again for taking the time to respond to my initial question, I haven't even thought about this approach but it sounds like it will solve my issue.