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REST SDK

The PayPal REST SDK provides Ruby APIs to create, process and manage payment.

Installation

Add this line to your application's Gemfile:

gem 'paypal-sdk-rest'

And then execute:

$ bundle

Or install it yourself as:

$ gem install paypal-sdk-rest

Configuration

For Rails application:

rails g paypal:sdk:install

For other ruby application, create a configuration file(config/paypal.yml):

development: &default
  mode: sandbox
  client_id: EBWKjlELKMYqRNQ6sYvFo64FtaRLRR5BdHEESmha49TM
  client_secret: EO422dn3gQLgDbuwqTjzrFgFtaRLRR5BdHEESmha49TM
  # # with Proxy
  # http_proxy: http://proxy-ipaddress:3129/
  # # with CA File
  # ssl_options:
  #   ca_file: config/cacert.pem
  # # Override Endpoint
  # rest_endpoint: https://api.sandbox.paypal.com
test:
  <<: *default
production:
  mode: live
  client_id: CLIENT_ID
  client_secret: CLIENT_SECRET

Load Configurations from specified file:

PayPal::SDK::Core::Config.load('spec/config/paypal.yml',  ENV['RACK_ENV'] || 'development')

Without configuration file:

PayPal::SDK::REST.set_config(
  :mode => "sandbox", # "sandbox" or "live"
  :client_id => "EBWKjlELKMYqRNQ6sYvFo64FtaRLRR5BdHEESmha49TM",
  :client_secret => "EO422dn3gQLgDbuwqTjzrFgFtaRLRR5BdHEESmha49TM",
  :ssl_options => { } )

Create Payment

require 'paypal-sdk-rest'
include PayPal::SDK::REST

PayPal::SDK::REST.set_config(
  :mode => "sandbox", # "sandbox" or "live"
  :client_id => "EBWKjlELKMYqRNQ6sYvFo64FtaRLRR5BdHEESmha49TM",
  :client_secret => "EO422dn3gQLgDbuwqTjzrFgFtaRLRR5BdHEESmha49TM")

# Build Payment object
@payment = Payment.new({
  :intent => "sale",
  :payer => {
    :payment_method => "credit_card",
    :funding_instruments => [{
      :credit_card => {
        :type => "visa",
        :number => "4417119669820331",
        :expire_month => "11",
        :expire_year => "2018",
        :cvv2 => "874",
        :first_name => "Joe",
        :last_name => "Shopper",
        :billing_address => {
          :line1 => "52 N Main ST",
          :city => "Johnstown",
          :state => "OH",
          :postal_code => "43210",
          :country_code => "US" }}}]},
  :transactions => [{
    :item_list => {
      :items => [{
        :name => "item",
        :sku => "item",
        :price => "1",
        :currency => "USD",
        :quantity => 1 }]},
    :amount => {
      :total => "1.00",
      :currency => "USD" },
    :description => "This is the payment transaction description." }]})

# Create Payment and return the status(true or false)
if @payment.create
  @payment.id     # Payment Id
else
  @payment.error  # Error Hash
end

Get Payment details

# Fetch Payment
payment = Payment.find("PAY-57363176S1057143SKE2HO3A")

# Get List of Payments
payment_history = Payment.all( :count => 10 )
payment_history.payments

Execute Payment

Only for Payment with payment_method as "paypal"

payment = Payment.find("PAY-57363176S1057143SKE2HO3A")

if payment.execute( :payer_id => "DUFRQ8GWYMJXC" )
  # Success Message
else
  payment.error # Error Hash
end