Migrate payment methods to the Dashboard

Stripe::Checkout::Session.create({
  line_items: [
    {
      price_data: {
        currency: 'eur',
        product_data: {name: 'T-shirt'},
        unit_amount: 2000,
      },
      quantity: 1,
    },
  ],
  mode: 'payment',
  # Remove the payment_method_types parameter to manage payment methods in the Dashboard
  payment_method_types: ['card'],
  return_url: 'https://example.com/return',
  ui_mode: 'custom',
})

# Set your secret key. Remember to switch to your live secret key in production.
# See your keys here: https://dashboard.stripe.com/apikeys
Stripe.api_key = 
'sk_test_BQokikJOvBiI2HlWgH4olfQ2'

# You can find your endpoint's secret in the output of the `stripe listen`
# command you ran earlier
endpoint_secret = 'whsec_...'

post '/webhook' do
  event = nil

  # Verify webhook signature and extract the event
  # See https://stripe.com/docs/webhooks#verify-events for more information.
  begin
    sig_header = request.env['HTTP_STRIPE_SIGNATURE']
    payload = request.body.read
    event = Stripe::Webhook.construct_event(payload, sig_header, endpoint_secret)
  rescue JSON::ParserError => e
    # Invalid payload
    return status 400
  rescue Stripe::SignatureVerificationError => e
    # Invalid signature
    return status 400
  end

  case event['type']
  if event['type'] == 'checkout.session.completed'
    checkout_session = event['data']['object']

    fulfill_order(checkout_session)
  end
  when 'checkout.session.completed'
    checkout_session = event['data']['object']

    # Save an order in your database, marked as 'awaiting payment'
    create_order(checkout_session)

    # Check if the order is already paid (for example, from a card payment)
    #
    # A delayed notification payment will have an `unpaid` status, as
    # you're still waiting for funds to be transferred from the customer's
    # account.
    if checkout_session.payment_status == 'paid'
      fulfill_order(checkout_session)
    end
  when 'checkout.session.async_payment_succeeded'
    checkout_session = event['data']['object']

    # Fulfill the purchase...
    fulfill_order(checkout_session)
  when 'checkout.session.async_payment_failed'
    session = event['data']['object']

    # Send an email to the customer asking them to retry their order
    email_customer_about_failed_payment(checkout_session)
  end

  status 200
end

def fulfill_order(checkout_session)
  # TODO: fill in with your own logic
  puts "Fulfilling order for #{checkout_session.inspect}"
end

def create_order(checkout_session)
  # TODO: fill in with your own logic
  puts "Creating order for #{checkout_session.inspect}"
end

def email_customer_about_failed_payment(checkout_session)
  # TODO: fill in with your own logic
  puts "Emailing customer about payment failure for: #{checkout_session.inspect}"
end