ProMotion-iap

gem 'ProMotion-iap'

class PurchaseScreen < PM::Screen

  def on_load

    product = PM::IAP::Product.new("productid")

    product.retrieve do |product, error|
      # product looks something like the following
      {
        product_id:               "productid1",
        title:                    "title",
        description:              "description",
        price:                    <BigDecimal 0.99>,
        formatted_price:          "$0.99",
        price_locale:             <NSLocale>,
        downloadable:             false,
        download_content_lengths: <?>, # TODO: ?
        download_content_version: <?>, # TODO: ?
        product:                  <SKProduct>
      }
    end

    product.purchase do |status, data|
      case status
      when :in_progress
        # Usually do nothing, maybe a spinner
      when :deferred
        # Waiting on a prompt to the user
      when :purchased
        # Notify the user, update any affected UI elements
      when :canceled
        # They just canceled, no big deal.
      when :error
        # Failed to purchase
        data[:error].localizedDescription # => error message
      end
    end

    product.restore do |status, data|
      if status == :restored
        # Update your UI, notify the user
        # data is a hash with :product_id, :error, and :transaction
      else
        # Tell the user it failed to restore
      end
    end

  end
end

# app/screens/purchase_screen.rb
class PurchaseScreen < PM::Screen
  include PM::IAP

  def on_load

    retrieve_iaps [ "productid1", "productid2" ] do |products, error|
      # products looks something like the following
      [{
        product_id:               "productid1",
        title:                    "title",
        description:              "description",
        price:                    <BigDecimal 0.99>,
        formatted_price:          "$0.99",
        price_locale:             <NSLocale>,
        downloadable:             false,
        download_content_lengths: <?>, # TODO: ?
        download_content_version: <?>, # TODO: ?
        product:                  <SKProduct>
      }, {...}]
    end

    purchase_iaps [ "productid" ], username: User.current.username do |status, transaction|
      case status
      when :in_progress
        # Usually do nothing, maybe a spinner
      when :deferred
        # Waiting on a prompt to the user
      when :purchased
        # Notify the user, update any affected UI elements
      when :canceled
        # They just canceled, no big deal.
      when :error
        # Failed to purchase
        transaction.error.localizedDescription # => error message
      end
    end

    restore_iaps [ "productid" ], username: User.current.username do |status, data|
      if status == :restored
        # Update your UI, notify the user
        # This is called once for each product you're trying to restore.
        data[:product_id] # => "productid"
      elsif status == :error
        # Update your UI to show that there was an error.
        # This will only be called once, no matter how many products you are trying to restore.
        # You'll get an NSError in your `data` hash.
        data[:error].localizedDescription # => description of error
      end
    end


  end
end