Merge pull request #1 from Mifiel/readme-app-secret

Readme app secret

.rubocop.yml

@@ -22,3 +22,6 @@ Metrics/LineLength:
 Style/HashSyntax:
   EnforcedStyle: ruby19
 
+Metrics/BlockLength:
+  Exclude:
+    - 'spec/**/*'

Gemfile

@@ -8,7 +8,7 @@ group :development, :test do
   gem 'guard', '2.13.0'
   gem 'guard-rspec'
   # compatible with ruby >= 1.9.3
-  gem 'listen', '3.0.8'
   gem 'guard-rubocop'
+  gem 'listen', '3.0.8'
   gem 'terminal-notifier-guard'
 end

README.md

@@ -26,9 +26,11 @@ Or install it yourself as:
 
 ## Usage
 
-To start using the API you will need an APP_ID and a APP_SECRET which will be provided upon request (contact us at hola@mifiel.com).
+For your convenience Mifiel offers a Sandbox environment where you can confidently test your code.
 
-You will first need to create an account in [mifiel.com](https://www.mifiel.com) since the APP_ID and APP_SECRET will be linked to your account.
+To start using the API in the Sandbox environment you need to first create an account at [sandbox.mifiel.com](https://sandbox.mifiel.com).
+
+Once you have an account you will need an APP_ID and an APP_SECRET which you can generate in [sandbox.mifiel.com/access_tokens](https://sandbox.mifiel.com/access_tokens).
 
 Then you can configure the gem with:
 

lib/mifiel/document.rb

@@ -24,6 +24,7 @@ def self.create(args)
         name: name
       }
       payload = args.merge(payload)
+      payload.reject! { |_k, v| v.nil? }
       response = process_request('/documents', :post, payload)
       Mifiel::Document.new(JSON.parse(response))
     end