simplepay (Rails Amazon Simple Pay Interface)

This gem provides a Rails 4 interface to the Amazon Simple Pay payment service.

Supports the following Amazon Simple Pay services:

• Standard
• Subscription
• Marketplace
• Donation

Add simplepay to your Bundler Gemfile

#in Gemfile

gem "simplepay-rails4", :require => 'simplepay'

Configure the gem with your Amazon Web Services credentials:

#in config/initializers/simplepay.rb

Simplepay.aws_access_key_id     = 'MYAMAZONACCESSKEYID'
Simplepay.aws_secret_access_key = 'MYAMAZONSECRETACCESSKEY'
Simplepay.use_sandbox = true # defaulted to true

1. Create an Amazon Payments Personal Account https://payments.amazon.com/sdui/sdui/basicaccount or on Sandbox: https://payments-sandbox.amazon.com/sdui/sdui/basicaccount

2. Create an Amazon Payments Business Account https://payments.amazon.com/sdui/sdui/premiumaccount or in the sandbox for testing https://payments-sandbox.amazon.com/sdui/sdui/premiumaccount

3. Create an Amazon Web Services Account
   https://aws-portal.amazon.com/gp/aws/developer/registration/index.html

4. Retrieve the Access Key ID and Secret Access Key https://aws-portal.amazon.com/gp/aws/developer/account/index.html?ie=UTF8&action=access-key

Note that the AWS Access Key ID and Secret Access Key is good for both testing in the sandbox and for production use.

Generally, this library will then be used directly from one (or more) of your views. Depending on the type of Simple Pay service you're using (see Simplepay::Services), some form values will be required, while others may be optional. This is done like so:

<%= simplepay_form_for(:standard, {
  :amount       => 10.95,
  :description  => "Profit!"
}) %>

<%= simplepay_form_for(:subscription, {
  :amount                 => 10.95,
  :description            => "MORE Profit!",
  :recurring_frequency    => "1 month"
}) %>

You can add a custom submit button (and indeed custom form elements) using either an attribute or a block (not both)

<%= simplepay_form_for(:subscription, {
  :amount                 => 10.95,
  :description            => "MORE Profit!",
  :recurring_frequency    => "1 month"
}, submit_tag('Custom Submit')) %>

<%# OR #%>

<%= simplepay_form_for :marketplace, 
  :amount => invoice.total, 
  :description => "Mutual profit!", 
  :recipient_email => 'seller@gmail.com', 
  :fixed_marketplace_fee => 10.00, 
  :variable_marketplace_fee => 5 do %>
  <div>
    <%= submit_tag 'Pay With Amazon', class: 'btn btn-primary' %>
  </div>
<% end %>

Amazon Simple Pay Marketplace makes it easy to facilitate payments between buyers and sellers, and to charge a fee for the transaction. If you're building a marketplace application, your sellers must first agree to the policy that you set. You can do this by specifying the Simplepay::Services::MarketplacePolicy service:

<%= simplepay_form_for(:marketplace_policy, {
  :max_fixed_fee => 5.00,
  :max_variable_fee => 5,
  :return_url => 'http://yourservice.com',
  :reference_id => '1234567890'
}) %>

The user will be prompted to login to their Amazon account and accept the policy you propose. After they complete the process, they'll be returned to the return_url specified. Amazon will also provide a recipientEmail parameter that will contain the seller email here (you may want to craft your return url so that it contains the reference_id value and use this to 'acknowledge' a sellers consent and record their Amazon recipient email address).

Only once this is done will you be able to offer marketplace checkout options for that sellers items:

<%= simplepay_form_for(:marketplace, {
  :amount                   => 34.95,
  :description              => "Mutual profit!",
  :recipient_email          => 'seller@gmail.com',
  :fixed_marketplace_fee    => 10.00,
  :variable_marketplace_fee => 5
}) %>

sudo gem install simplepay-rails4