在 Webhook 端点中接收 Stripe 事件

require 'json'

# Replace this endpoint secret with your unique endpoint secret key
# If you're testing with the CLI, run 'stripe listen' to find the secret key
# If you defined your endpoint using the API or the Dashboard, check your webhook settings for your endpoint secret: https://dashboard.stripe.com/webhooks
endpoint_secret = 'whsec_...';

# Using Sinatra
post '/webhook' do
  payload = request.body.read
  event = nil

  begin
    event = Stripe::Event.construct_from(
      JSON.parse(payload, symbolize_names: true)
    )
  rescue JSON::ParserError => e
    # Invalid payload
    status 400
    return
  end

  # Check that you have configured webhook signing
  if endpoint_secret
    # Retrieve the event by verifying the signature using the raw body and the endpoint secret
    signature = request.env['HTTP_STRIPE_SIGNATURE'];
    begin
      event = Stripe::Webhook.construct_event(
        payload, signature, endpoint_secret
      )
    rescue Stripe::SignatureVerificationError => e
      puts "⚠️  Webhook signature verification failed. #{e.message}"
      status 400
    end
  end

  # Handle the event
  case event.type
  when 'payment_intent.succeeded'
    payment_intent = event.data.object # contains a Stripe::PaymentIntent
    # Then define and call a method to handle the successful payment intent.
    # handle_payment_intent_succeeded(payment_intent)
  when 'payment_method.attached'
    payment_method = event.data.object # contains a Stripe::PaymentMethod
    # Then define and call a method to handle the successful attachment of a PaymentMethod.
    # handle_payment_method_attached(payment_method)
  # ... handle other event types
  else
    puts "Unhandled event type: #{event.type}"
  end

  status 200
end

require 'json'

# Using Sinatra
post '/webhook' do
  payload = request.body.read
  event = nil

  begin
    event = Stripe::Event.construct_from(
      JSON.parse(payload, symbolize_names: true)
    )
  rescue JSON::ParserError => e
    # Invalid payload
    status 400
    return
  end

  # Extract the context
  context = event.context

  # Define your API key variables (ideally loaded securely)
  ACCOUNT_123_API_KEY = "sk_test_123"
  ACCOUNT_456_API_KEY = "sk_test_456"

  account_api_keys = {
    "account_123" => ACCOUNT_123_API_KEY,
    "account_456" => ACCOUNT_456_API_KEY
  }

  api_key = account_api_keys[context]

  if api_key.nil?
    puts "No API key found for context: #{context}"
    status 400
    return
  end

  # Handle the event
  case event.type
  when 'customer.created'
    customer = event.data.object

    begin
      latest_customer = Stripe::Customer.retrieve(
        customer.id,
        { api_key: api_key }
      )
      handle_customer_created(latest_customer, context)
    rescue => e
      puts "Error retrieving customer: #{e.message}"
      status 500
      return
    end

  when 'payment_method.attached'
    payment_method = event.data.object

    begin
      latest_payment_method = Stripe::PaymentMethod.retrieve(
        payment_method.id,
        { api_key: api_key }
      )
      handle_payment_method_attached(latest_payment_method, context)
    rescue => e
      puts "Error retrieving payment method: #{e.message}"
      status 500
      return
    end

  else
    puts "Unhandled event type: #{event.type}"
  end

  status 200
end

# 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'

require 'stripe'
require 'sinatra'

# If you are testing your webhook locally with the Stripe CLI you
# can find the endpoint's secret by running `stripe listen`
# Otherwise, find your endpoint's secret in your webhook settings in
# the Developer Dashboard
endpoint_secret = 'whsec_...'

# Using the Sinatra framework
set :port, 4242

post '/my/webhook/url' do
  payload = request.body.read
  sig_header = request.env['HTTP_STRIPE_SIGNATURE']
  event = nil

  begin
    event = Stripe::Webhook.construct_event(
      payload, sig_header, endpoint_secret
    )
  rescue JSON::ParserError => e
    # Invalid payload
    puts "Error parsing payload: #{e.message}"
    status 400
    return
  rescue Stripe::SignatureVerificationError => e
    # Invalid signature
    puts "Error verifying webhook signature: #{e.message}"
    status 400
    return
  end

  # Handle the event
  case event.type
  when 'payment_intent.succeeded'
    payment_intent = event.data.object # contains a Stripe::PaymentIntent
    puts 'PaymentIntent was successful!'
  when 'payment_method.attached'
    payment_method = event.data.object # contains a Stripe::PaymentMethod
    puts 'PaymentMethod was attached to a Customer!'
  # ... handle other event types
  else
    puts "Unhandled event type: #{event.type}"
  end

  status 200
end