Integrate using the Braintree GraphQL API instead of the ruby SDK

.ruby-gemset

@@ -1 +1 @@
-braintree_rails_example
+braintree_graphql_rails_example

Dockerfile

@@ -2,7 +2,7 @@ FROM ruby:2.3.1-onbuild
 
 RUN apt-get update && apt-get install -y build-essential nodejs
 
-ENV APP_HOME /braintree_rails_example
+ENV APP_HOME /braintree_graphql_rails_example
 RUN mkdir $APP_HOME
 WORKDIR $APP_HOME
 

Gemfile

@@ -22,10 +22,10 @@ gem 'jbuilder', '~> 2.0'
 # bundle exec rake doc:rails generates the API under doc/api.
 gem 'sdoc', '~> 0.4.0', group: :doc
 
-gem 'braintree', '~> 2.87'
-
 gem 'dotenv', '~> 2.0'
 
+gem 'httparty', '~> 0.16.2'
+
 group :development, :test do
   # Use sqlite in development and test for ease of setup
   gem 'sqlite3'

Gemfile.lock

@@ -47,8 +47,6 @@ GEM
       debug_inspector (>= 0.0.1)
     bootsnap (1.3.2)
       msgpack (~> 1.0)
-    braintree (2.94.0)
-      builder (>= 2.0.0)
     builder (3.2.3)
     byebug (10.0.2)
     coffee-rails (4.2.2)
@@ -68,7 +66,10 @@ GEM
     ffi (1.9.25)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    i18n (1.6.0)
+    httparty (0.16.2)
+      concurrent-ruby (~> 1.0)
+      multi_xml (>= 0.5.2)
+    i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     jbuilder (2.8.0)
       activesupport (>= 4.2.0)
@@ -96,6 +97,7 @@ GEM
     minitest (5.11.3)
     msgpack (1.2.10)
     multi_json (1.13.1)
+    multi_xml (0.6.0)
     nio4r (2.3.1)
     nokogiri (1.10.5)
       mini_portile2 (~> 2.4.0)
@@ -207,10 +209,10 @@ PLATFORMS
 
 DEPENDENCIES
   bootsnap (= 1.3.2)
-  braintree (~> 2.87)
   byebug
   coffee-rails (~> 4.2.2)
   dotenv (~> 2.0)
+  httparty (~> 0.16.2)
   jbuilder (~> 2.0)
   jquery-rails
   listen (~> 3.1, >= 3.1.5)

README.md

@@ -1,8 +1,8 @@
-# Braintree Rails Example
+# Braintree GraphQL Example in Rails
 
-[![Build Status](https://travis-ci.org/braintree/braintree_rails_example.svg?branch=master)](https://travis-ci.org/braintree/braintree_rails_example)
+[![Build Status](https://travis-ci.org/braintree/braintree_graphql_rails_example.svg?branch=master)](https://travis-ci.org/braintree/braintree_graphql_rails_example)
 
-An example Braintree integration for Ruby on Rails.
+An example Braintree integration with the [GraphQL API](https://graphql.braintreepayments.com/) using Ruby on Rails. Forked from [braintree/braintree_rails_example](https://github.com/braintree/braintree_rails_example).
 
 ## Setup Instructions
 
@@ -30,7 +30,7 @@ An example Braintree integration for Ruby on Rails.
 
 You can deploy this app directly to Heroku to see the app live. Skip the setup instructions above and click the button below. This will walk you through getting this app up and running on Heroku in minutes.
 
-[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/braintree/braintree_rails_example&env[BT_ENVIRONMENT]=sandbox)
+[![Deploy](https://www.herokucdn.com/deploy/button.svg)](https://heroku.com/deploy?template=https://github.com/braintree/braintree_graphql_rails_example&env[BT_VERSION]=2019-11-11)
 
 ## Running Tests
 
@@ -57,7 +57,7 @@ Sandbox transactions must be made with [sample credit card numbers](https://deve
 
 ## Help
 
- * Found a bug? Have a suggestion for improvement? Want to tell us we're awesome? [Submit an issue](https://github.com/braintree/braintree_rails_example/issues)
+ * Found a bug? Have a suggestion for improvement? Want to tell us we're awesome? [Submit an issue](https://github.com/braintree/braintree_graphql_rails_example/issues)
  * Trouble with your integration? Contact [Braintree Support](https://support.braintreepayments.com/) / [email protected]
  * Want to contribute? [Submit a pull request](https://help.github.com/articles/creating-a-pull-request)
 

app.json

@@ -1,28 +1,23 @@
 {
-  "name": "Braintree Rails Example",
-  "description": "An example Braintree integration for Ruby on Rails",
-  "keywords": ["braintree", "ruby", "rails"],
+  "name": "Braintree GraphQL Example in Rails",
+  "description": "An example Braintree integration with the GraphQL API using Ruby on Rails",
+  "keywords": ["braintree", "graphql", "ruby", "rails"],
   "website": "https://www.braintreepayments.com",
-  "repository": "https://github.com/braintree/braintree_rails_example",
+  "repository": "https://github.com/braintree/braintree_graphql_rails_example",
   "logo": "https://avatars1.githubusercontent.com/u/3453",
   "success_url": "/",
   "env": {
-    "BT_ENVIRONMENT": {
-      "description": "Run against Braintree sandbox environment",
-      "required": true,
-      "value": "sandbox"
-    },
-    "BT_MERCHANT_ID": {
-      "description": "Your Braintree Merchant ID",
-      "required": true
-    },
     "BT_PUBLIC_KEY": {
       "description": "Your Braintree Public Key",
       "required": true
     },
     "BT_PRIVATE_KEY": {
       "description": "Your Braintree Private Key",
       "required": true
+    },
+    "BT_VERSION": {
+      "description": "A date in the format YYYY-MM-DD (we recommend using the date you started using the GraphQL API)",
+      "required": true
     }
   }
 }

app/assets/stylesheets/app.css.erb

@@ -2152,10 +2152,10 @@ td {
   word-wrap: break-word;
   -ms-word-break: break-all;
   word-break: break-word;
-  -ms-hyphens: auto;
-  -moz-hyphens: auto;
-  -webkit-hyphens: auto;
-  hyphens: auto;
+  -ms-hyphens: none;
+  -moz-hyphens: none;
+  -webkit-hyphens: none;
+  hyphens: none;
   line-height: 1.3em;
   font-size: 14px;
   letter-spacing: .02em;

app/controllers/checkouts_controller.rb

@@ -1,46 +1,48 @@
 class CheckoutsController < ApplicationController
   TRANSACTION_SUCCESS_STATUSES = [
-    Braintree::Transaction::Status::Authorizing,
-    Braintree::Transaction::Status::Authorized,
-    Braintree::Transaction::Status::Settled,
-    Braintree::Transaction::Status::SettlementConfirmed,
-    Braintree::Transaction::Status::SettlementPending,
-    Braintree::Transaction::Status::Settling,
-    Braintree::Transaction::Status::SubmittedForSettlement,
+    "AUTHORIZED",
+    "AUTHORIZING",
+    "SETTLED",
+    "SETTLEMENT_PENDING",
+    "SETTLING",
+    "SUBMITTED_FOR_SETTLEMENT",
   ]
 
   def new
-    @client_token = gateway.client_token.generate
+    @client_token = gateway.client_token.dig("data", "createClientToken", "clientToken")
   end
 
   def show
-    @transaction = gateway.transaction.find(params[:id])
-    @result = _create_result_hash(@transaction)
+    begin
+      @transaction = gateway.node_fetch_transaction(params[:id]).fetch("data", {})["transaction"]
+      @result = _create_status_result_hash(@transaction)
+    rescue BraintreeGateway::GraphQLError => error
+      _flash_errors(error)
+      redirect_to new_checkout_path
+    end
   end
 
   def create
     amount = params["amount"] # In production you should not take amounts directly from clients
     nonce = params["payment_method_nonce"]
 
-    result = gateway.transaction.sale(
-      amount: amount,
-      payment_method_nonce: nonce,
-      :options => {
-        :submit_for_settlement => true
-      }
-    )
+    begin
+      result = gateway.transaction(nonce, amount)
+      id = result.dig("data", "chargePaymentMethod", "transaction", "id")
 
-    if result.success? || result.transaction
-      redirect_to checkout_path(result.transaction.id)
-    else
-      error_messages = result.errors.map { |error| "Error: #{error.code}: #{error.message}" }
-      flash[:error] = error_messages
+      if id
+        redirect_to checkout_path(id)
+      else
+        raise BraintreeGateway::GraphQLError.new(result)
+      end
+    rescue BraintreeGateway::GraphQLError => error
+      _flash_errors(error)
       redirect_to new_checkout_path
     end
   end
 
-  def _create_result_hash(transaction)
-    status = transaction.status
+  def _create_status_result_hash(transaction)
+    status = transaction["status"]
 
     if TRANSACTION_SUCCESS_STATUSES.include? status
       result_hash = {
@@ -50,21 +52,22 @@ def _create_result_hash(transaction)
       }
     else
       result_hash = {
-        :header => "Transaction Failed",
+        :header => "Transaction Unsuccessful",
         :icon => "fail",
         :message => "Your test transaction has a status of #{status}. See the Braintree API response and try again."
       }
     end
   end
 
-  def gateway
-    env = ENV["BT_ENVIRONMENT"]
+  def _flash_errors(error)
+    if error.messages != nil and !error.messages.empty?
+      flash[:error] = error.messages
+    else
+      flash[:error] = ["Error: Something unexpected went wrong! Try again."]
+    end
+  end
 
-    @gateway ||= Braintree::Gateway.new(
-      :environment => env && env.to_sym,
-      :merchant_id => ENV["BT_MERCHANT_ID"],
-      :public_key => ENV["BT_PUBLIC_KEY"],
-      :private_key => ENV["BT_PRIVATE_KEY"],
-    )
+  def gateway
+    @gateway ||= BraintreeGateway.new(HTTParty)
   end
 end