Homegrown StripeEvents handling

account_updated.rb

# app/models/stripe_events/account_updated.rb

module StripeEvents
  class AccountUpdated
    def call(event)
      # do your thing
      Rails.logger.debug(event.data.object)
    end
  end
end

stripe_events_controller.rb

# app/controllers/stripe_events_controller.rb
#
# route like
#   post("/stripe_events", to: "stripe_events#create")

class StripeEventsController < ApplicationController
  skip_before_action :verify_authenticity_token

  def create
    if signed_event = contruct_event
      handle_event(signed_event)
    end

    head(:ok)
  rescue Stripe::SignatureVerificationError => e
    logger.error(e)
    head(:bad_request)
  end

  private

  def contruct_event
    payload = request.body.read
    signature = request.env["HTTP_STRIPE_SIGNATURE"]
    secrets = Array(Rails.application.credentials.stripe_signing_secret)

    secrets.each_with_index do |secret, i|
      return Stripe::Webhook.construct_event(
        payload,
        signature,
        secret
      )
    rescue Stripe::SignatureVerificationError
      raise if i == secrets.size - 1
      next
    end
  end

  def handle_event(event)
    return unless handler = handler_for(event.type)
    handler.call(event)
  end

  def handler_for(type)
    case type
    when "account.updated"
      StripeEvents::AccountUpdated.new
    when "setup_intent.succeeded"
      StripeEvents::SetupIntentSucceeded.new
    when "charge.refunded"
      StripeEvents::ChargeRefunded.new
    else
      # and so on ...
      #
      # default handler goes here
    end
  end
end