first run at adding basic stripe functionality

.env.example

@@ -21,3 +21,6 @@ TWILIO_RECORDING_APP_SID='APddddddddddddddddddddddddddddddddd'
 TWILIO_APP_PHONE_NUMBER='555-555-5555'
 TWILIO_APP_RECORDING_NUMBER='555-555-5555'
 TWILIO_AUDIO_AWS_BUCKET_URL='https://s3.amazonaws.com/whatever/'
+
+STRIPE_PUBLISHABLE_KEY=pk_test_xxxxxxxxxxxxxxxxxxxxxxxx
+STRIPE_SECRET_KEY=sk_test_xxxxxxxxxxxxxxxxxxxxxxxx

Gemfile

@@ -33,6 +33,9 @@ end
 gem 'unicorn'
 gem 'airbrake'
 
+# Payment processing
+gem 'stripe'
+
 # Use ActiveModel has_secure_password
 # gem 'bcrypt', '~> 3.1.7'
 

Gemfile.lock

@@ -235,6 +235,9 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
+    stripe (1.31.0)
+      json (~> 1.8.1)
+      rest-client (~> 1.4)
     thor (0.19.1)
     thread_safe (0.3.5)
     tilt (2.0.1)
@@ -305,6 +308,7 @@ DEPENDENCIES
   sinatra
   spring
   spring-commands-rspec
+  stripe
   timecop
   twilio-ruby
   unicorn

app/controllers/v1/payments_controller.rb

@@ -0,0 +1,23 @@
+class V1::PaymentsController < V1::BaseController
+
+  def create
+
+    charge = Stripe::Charge.create(payment_params)
+
+    render json: { charge_id: charge.id }
+
+  rescue Stripe::CardError => e
+    render json: { error: e.message }
+  end
+
+  private
+
+  def payment_params
+    defaults = {
+      'currency' => 'usd',
+      'description' => 'donation from [email protected]'
+    }
+
+    defaults.merge(params.require(:payment).permit(:amount, :source))
+  end
+end

config/initializers/stripe.rb

@@ -0,0 +1,6 @@
+Rails.configuration.stripe = {
+  :publishable_key => ENV['STRIPE_PUBLISHABLE_KEY'],
+  :secret_key      => ENV['STRIPE_SECRET_KEY']
+}
+
+Stripe.api_key = Rails.configuration.stripe[:secret_key]

config/routes.rb

@@ -10,6 +10,7 @@
       post :targets, on: :collection, action: :targets
       get '/:identifier', on: :collection, action: :show, constraints: { identifier: /[^\/]+/} #allow email as identifier
     end
+    resources :payments,    only: :create
     resources :stats,       only: :index
     resources :actions,     only: :create do
       get :count, on: :collection

spec/controllers/v1/payments_controller_spec.rb

@@ -0,0 +1,27 @@
+require 'rails_helper'
+
+describe V1::PaymentsController, type: :controller do
+
+  describe "POST create" do
+    it "works" do
+      stub_stripe_charge(amount: 400, source: 'test token', charge_id: 'test id')
+      post :create, payment: { amount: 400, source: 'test token' }
+      expect(json(response)['charge_id']).to eq 'test id'
+    end
+  end
+
+end
+
+def json(response)
+  JSON.parse(response.body)
+end
+
+def stub_stripe_charge(amount: 100, source: 'token', charge_id: 'id')
+  charge = double('charge', id: charge_id)
+  allow(Stripe::Charge).to receive(:create).
+    with(hash_including(
+      'amount' => amount.to_s,
+      'source' => source,
+      'currency' => 'usd')).
+    and_return(charge)
+end

spec/rails_helper.rb

@@ -73,4 +73,4 @@
   # The different available types are documented in the features, such as in
   # https://relishapp.com/rspec/rspec-rails/docs
   config.infer_spec_type_from_file_location!
-end
+end