android_in_app_billing

AndroidInAppBilling

Installation

Add this line to your application's Gemfile:

gem 'android_in_app_billing'

And then execute:

$ bundle

Or install it yourself as:

$ gem install android_in_app_billing

Usage

Configuration

AndroidInAppBilling.configure do |config|
  config.package_name = 'com.example.android'
  config.json_key_path = '/path/to/a/json_key.json'
  config.package_public_key = 'RSA public key'
end

Working with purchase data from android clients

purchase_data and data_signature are the values android app gets from a purchase request. See https://developer.android.com/google/play/billing/billing_reference.html#getBuyIntent

purchase = AndroidInAppBilling::InappPurchase.new(data: purchase_data, signature: data_signature)

# attribute accessors:
purchase.token # => JWT token
purchase.auto_renewing # => true/false
# ... (other attributes, see `AndroidInAppBilling::InappPurchase` and the link above)

# signature validation:
purchase.signature_valid? # => true/false

Working with purchase updates

To get current subscription state this gem uses android publisher v2 API

client = AndroidInAppBilling::PublisherClient.new
subscription = client.get_subscription_purchase(purchase.product_id, purchase.token)

# attribute accessors:
subscription.payment_state # => 'pending' / 'trial' / 'received'
subscription.expires_at # => some DateTime
# ... (other attributes, see `AndroidInAppBilling::SubscriptionPurchase` and the link above)

Testing

This gem provides a factory to generate raw purchase data+signature, which you can use in your tests:

require 'android_in_app_billing/testing'

# See lib/factories/raw_inapp_purchase.rb for the list of attributes
raw = build(:android_in_app_billing_raw_inapp_purchase)
# => { data: "...", signature: "..." }

# Factory signs purchase data using AndroidInAppBilling::Testing::PRIVATE_KEY.
# If you want to verify this signature, you should configure AndroidInAppBilling
# to use correspondent public key
AndroidInAppBilling.config.package_public_key = AndroidInAppBilling::Testing::PUBLIC_KEY

# Then signature verification will pass
inapp = AndroidInAppBilling::InAppPurchase.new(raw)
inapp.signature_valid? # => true

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/SPBTV/android_in_app_billing.

License

The gem is available as open source under the terms of the Apache 2.0 License.