postmark_webhook.rb

class PostmarkController < ApplicationController
  skip_before_action :verify_authenticity_token
  http_basic_authenticate_with name: "foo", password: "not our real password, doh."
                             
  def create
    payload = JSON.parse(request.body.read)

    case payload["RecordType"]
    when "Bounce"
      if user = User.find_by(email: payload["Email"])
        user.update(
          email_bounced_at: Time.parse(payload["BouncedAt"]),
          email_bounce_details: payload["Details"]
        )
      end
    end
  ensure
    head :ok
  end
end