diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..a9c888f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,49 @@
+# rcov generated
+coverage
+coverage.data
+
+# rdoc generated
+rdoc
+
+# yard generated
+doc
+.yardoc
+
+# bundler
+.bundle
+
+# jeweler generated
+pkg
+
+# Have editor/IDE/OS specific files you need to ignore? Consider using a global gitignore: 
+#
+# * Create a file at ~/.gitignore
+# * Include files you want ignored
+# * Run: git config --global core.excludesfile ~/.gitignore
+#
+# After doing this, these files will be ignored in all your git projects,
+# saving you from having to 'pollute' every project you touch with them
+#
+# Not sure what to needs to be ignored for particular editors/OSes? Here's some ideas to get you started. (Remember, remove the leading # of the line)
+#
+# For MacOS:
+#
+#.DS_Store
+
+# For TextMate
+#*.tmproj
+#tmtags
+
+# For emacs:
+#*~
+#\#*
+#.\#*
+
+# For vim:
+#*.swp
+
+# For redcar:
+#.redcar
+
+# For rubinius:
+#*.rbc
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..261da03
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+source "https://rubygems.org"
+
+# gem "rails"
+ 
+group :development do
+  gem "shoulda", ">= 0"
+  gem "rdoc", "~> 3.12"
+  gem "bundler", "~> 1.0"
+  gem "jeweler", "~> 2.3.0"
+  gem "simplecov", ">= 0"
+end
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..f5c2439
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,87 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    activesupport (5.1.1)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (~> 0.7)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+    addressable (2.4.0)
+    builder (3.2.3)
+    concurrent-ruby (1.0.5)
+    descendants_tracker (0.0.4)
+      thread_safe (~> 0.3, >= 0.3.1)
+    docile (1.1.5)
+    faraday (0.9.2)
+      multipart-post (>= 1.2, < 3)
+    git (1.3.0)
+    github_api (0.16.0)
+      addressable (~> 2.4.0)
+      descendants_tracker (~> 0.0.4)
+      faraday (~> 0.8, < 0.10)
+      hashie (>= 3.4)
+      mime-types (>= 1.16, < 3.0)
+      oauth2 (~> 1.0)
+    hashie (3.5.5)
+    highline (1.7.8)
+    i18n (0.8.4)
+    jeweler (2.3.6)
+      builder
+      bundler (>= 1)
+      git (>= 1.2.5)
+      github_api (~> 0.16.0)
+      highline (>= 1.6.15)
+      nokogiri (>= 1.5.10)
+      psych (~> 2.2)
+      rake
+      rdoc
+      semver2
+    json (1.8.6)
+    jwt (1.5.6)
+    mime-types (2.99.3)
+    mini_portile2 (2.2.0)
+    minitest (5.10.2)
+    multi_json (1.12.1)
+    multi_xml (0.6.0)
+    multipart-post (2.0.0)
+    nokogiri (1.8.0)
+      mini_portile2 (~> 2.2.0)
+    oauth2 (1.3.1)
+      faraday (>= 0.8, < 0.12)
+      jwt (~> 1.0)
+      multi_json (~> 1.3)
+      multi_xml (~> 0.5)
+      rack (>= 1.2, < 3)
+    psych (2.2.4)
+    rack (2.0.3)
+    rake (12.0.0)
+    rdoc (3.12.2)
+      json (~> 1.4)
+    semver2 (3.4.2)
+    shoulda (3.5.0)
+      shoulda-context (~> 1.0, >= 1.0.1)
+      shoulda-matchers (>= 1.4.1, < 3.0)
+    shoulda-context (1.2.2)
+    shoulda-matchers (2.8.0)
+      activesupport (>= 3.0.0)
+    simplecov (0.14.1)
+      docile (~> 1.1.0)
+      json (>= 1.8, < 3)
+      simplecov-html (~> 0.10.0)
+    simplecov-html (0.10.1)
+    thread_safe (0.3.6)
+    tzinfo (1.2.3)
+      thread_safe (~> 0.1)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  bundler (~> 1.0)
+  jeweler (~> 2.3.0)
+  rdoc (~> 3.12)
+  shoulda
+  simplecov
+
+BUNDLED WITH
+   1.15.1
diff --git a/README.md b/README.md
index 30a57ae..53a2d9b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,130 @@
 # sendpulse-rest-api-ruby
+
 A simple SendPulse REST client library and example for Ruby.
+
+Includes a REST API and a Rails ActionMailer Delivery Method using the REST API.
+
+## REST API Pre-requisites
+
+Please activate REST API and obtain your API Client ID and Secret values by following these instructions:
+- Login to login.sendpulse.com
+- Go to Account Settings -> API tab
+- Activate REST API (if not already activated).
+- Copy and paste ID and Secret from there
+
+## Setup Instructions
+
+### Ruby without Bundler
+
+Run the following command in your terminal:
+```bash
+gem install sendpulse-rest-api-ruby
+```
+
+Add the following require line to your ruby code:
+```ruby
+require 'sendpulse-rest-api-ruby'
+```
+
+### Rails or Ruby with Bundler
+
+Add the following to `Gemfile`:
+```ruby
+gem 'sendpulse-rest-api-ruby'
+```
+
+Run the following command in your terminal:
+
+```bash
+bundle
+```
+
+Outside of Rails, you'd have to add a require line like the one in "Ruby without Bundler".
+
+### Rails REST API Configuration
+
+In Rails, you'd also have to configure the `API_CLIENT_ID` and `API_CLIENT_SECRET` variables at minimum.
+
+It is recommended to do so by adding a Rails initializer as follows:
+- Under `config/initializers`, create a file named `sendpulse_initializer.rb`
+- Add the following code to it (entering the correct values):
+```ruby
+Sendpulse.configure do |config|
+    config.api_client_id = 'apiclientidvalue'
+    config.api_client_secret = 'apiclientsecretvalue'
+end
+```
+
+For use with Heroku, it is recommended you configure Rails initializer via environment variables as follows:
+
+```ruby
+Sendpulse.configure do |config|
+    config.api_client_id = ENV['SENDPULSE_API_CLIENT_ID']
+    config.api_client_secret = ENV['SENDPULSE_API_CLIENT_SECRET']
+end
+```
+
+Then run the following command to configure these environment variables in Heroku:
+```bash
+heroku config:add SENDPULSE_API_CLIENT_ID=apiclientidvalue SENDPULSE_API_CLIENT_SECRET=apiclientsecretvalue
+```
+
+### Rails ActionMailer Delivery Method Configuration
+
+This depends on Rails REST API Configuration being done.
+
+Simply set your `config.action_mailer.delivery_method` to `:sendpulse` in your environment config file.
+
+For example, you can add the following to `config/environments/production.rb` for production's deployment:
+```ruby
+config.action_mailer.delivery_method = :sendpulse
+```
+
+## API Example
+
+```ruby
+require 'sendpulse-rest-api-ruby'
+require 'yaml'
+
+API_CLIENT_ID = 'apiclientidvalue'
+API_CLIENT_SECRET = 'apiclientsecretvalue'
+API_PROTOCOL = 'https'
+API_TOKEN = ''
+
+sendpulse_api = SendpulseApi.new(API_CLIENT_ID, API_CLIENT_SECRET, API_PROTOCOL, API_TOKEN)
+
+result = sendpulse_api.get_token
+YAML::dump(result)
+
+result = sendpulse_api.create_campaign('Name', 'example@gmail.com', 'Example subject', '<html><b>Example</b></html>', 'book_id') #+
+YAML::dump(result)
+
+result = sendpulse_api.add_sender('Some name', 'example@gmail.com')
+YAML::dump(result)
+
+result = sendpulse_api.get_balance
+YAML::dump(result)
+
+email = {
+    html: '<html><body><H1>TEXT</H1></body></html>',
+    text: 'TEST',
+    subject: 'Test, test test test',
+    from: { name: 'some', email: 'example@gmail.com' },
+    to: [
+        { name: 'some1', email: 'example1@gmail.com' },
+        { name: 'some3', email: 'example3@divermail.com' },
+    ],
+    bcc: [{ name: 'some2', email: 'example2@gmail.com' }]
+}
+
+result = sendpulse_api.smtp_send_mail(email)
+YAML::dump(result)
+```
+
+## License
+
+Apache License  
+Version 2.0, January 2004  
+http://www.apache.org/licenses/  
+Copyright 2015 SendPulse  
+See `LICENSE` for more details.
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..5e2ac60
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,44 @@
+# encoding: utf-8
+
+require 'rubygems'
+require 'bundler'
+begin
+  Bundler.setup(:default, :development)
+rescue Bundler::BundlerError => e
+  $stderr.puts e.message
+  $stderr.puts "Run `bundle install` to install missing gems"
+  exit e.status_code
+end
+require 'rake'
+
+require 'jeweler'
+Jeweler::Tasks.new do |gem|
+  # gem is a Gem::Specification... see http://guides.rubygems.org/specification-reference/ for more options
+  gem.name = "sendpulse-rest-api-ruby"
+  gem.homepage = "http://github.com/sendpulse/sendpulse-rest-api-ruby"
+  gem.license = "MIT"
+  gem.summary = %Q{A simple SendPulse REST client library and example for Ruby.}
+  gem.description = %Q{A simple SendPulse REST client library and example for Ruby.}
+  gem.email = "tech@sendpulse.com"
+  gem.authors = ["SendPulse Tech Team"]
+  # dependencies defined in Gemfile
+end
+Jeweler::RubygemsDotOrgTasks.new
+
+desc "Code coverage detail"
+task :simplecov do
+  ENV['COVERAGE'] = "true"
+  Rake::Task['test'].execute
+end
+
+task :default => :version #TODO change to test/rspec once added
+
+require 'rdoc/task'
+Rake::RDocTask.new do |rdoc|
+  version = File.exist?('VERSION') ? File.read('VERSION') : ""
+
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title = "sendpulse-rest-api-ruby #{version}"
+  rdoc.rdoc_files.include('README*')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..3eefcb9
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+1.0.0
diff --git a/example.rb b/example.rb
index 69b1aed..6db26e9 100644
--- a/example.rb
+++ b/example.rb
@@ -1,4 +1,4 @@
-require './api/sendpulse_api'
+require_relative 'lib/sendpulse-rest-api-ruby'
 require 'yaml'
 
 API_CLIENT_ID = ''
@@ -33,4 +33,4 @@
 }
 
 result = sendpulse_api.smtp_send_mail(email)
-YAML::dump(result)
\ No newline at end of file
+YAML::dump(result)
diff --git a/lib/action_mailer/sendpulse.rb b/lib/action_mailer/sendpulse.rb
new file mode 100644
index 0000000..a1b74f8
--- /dev/null
+++ b/lib/action_mailer/sendpulse.rb
@@ -0,0 +1,15 @@
+module Sendpulse
+
+  def self.configuration
+    @configration ||= Configuration.new
+  end
+
+  def self.configure
+    yield(configuration)
+  end
+end
+
+require_relative 'sendpulse/configuration'
+require_relative 'sendpulse/delivery_method'
+require_relative 'sendpulse/message'
+require_relative 'sendpulse/railtie' if defined?(Rails::Railtie)
diff --git a/lib/action_mailer/sendpulse/configuration.rb b/lib/action_mailer/sendpulse/configuration.rb
new file mode 100644
index 0000000..1f78127
--- /dev/null
+++ b/lib/action_mailer/sendpulse/configuration.rb
@@ -0,0 +1,10 @@
+module Sendpulse
+  class Configuration
+    attr_accessor :api_client_id, :api_client_secret, :api_protocol, :options, :logger
+
+    def initialize
+      @api_protocol = 'https'
+      @logger = Rails.logger if defined?(Rails)
+    end
+  end
+end
diff --git a/lib/action_mailer/sendpulse/delivery_method.rb b/lib/action_mailer/sendpulse/delivery_method.rb
new file mode 100644
index 0000000..c6b9a2c
--- /dev/null
+++ b/lib/action_mailer/sendpulse/delivery_method.rb
@@ -0,0 +1,43 @@
+require "digest/sha1"
+begin
+  require "mail"
+  require "mail/check_delivery_params"
+  require 'sendpulse-rest-api-ruby'
+rescue LoadError
+end
+
+module Sendpulse
+  class DeliveryMethod
+    include Mail::CheckDeliveryParams if defined?(Mail::CheckDeliveryParams)
+
+    class InvalidOption < StandardError; end
+
+    attr_accessor :settings
+
+    def initialize(options={})
+      Sendpulse.configuration.options = options
+      self.settings = Sendpulse.configuration
+    end
+
+    def deliver!(mail)
+      check_delivery_params(mail) if respond_to?(:check_delivery_params)
+      api_client_id = settings.api_client_id
+      api_client_secret = settings.api_client_secret
+      api_protocol = settings.api_protocol
+
+      sendpulse_api = SendpulseApi.new(api_client_id, api_client_secret, api_protocol)
+
+      email = {
+          html: mail.html_part.decoded,
+          text: mail.html_part.encoded,
+          subject: mail.subject,
+          from: { name: mail.from.first, email: mail.from_addrs.first },
+          to: mail.to_addrs.map {|addrs| {name: addrs, email: addrs}},
+          bcc: mail.bcc_addrs.map {|addrs| {name: addrs, email: addrs}}
+      }
+
+      result = sendpulse_api.smtp_send_mail(email)
+      settings.logger.info("[sendpulse_api.smtp_send_mail] result:\n#{YAML::dump(result)}") if settings.logger
+    end
+  end
+end
diff --git a/lib/action_mailer/sendpulse/message.rb b/lib/action_mailer/sendpulse/message.rb
new file mode 100644
index 0000000..9bd6a50
--- /dev/null
+++ b/lib/action_mailer/sendpulse/message.rb
@@ -0,0 +1,125 @@
+require "cgi"
+require "erb"
+require "fileutils"
+require "uri"
+
+module Sendpulse
+  class Message
+    attr_reader :mail
+
+    def self.rendered_messages(mail, options = {})
+      messages = []
+      messages << new(mail, options.merge(part: mail.html_part)) if mail.html_part
+      messages << new(mail, options.merge(part: mail.text_part)) if mail.text_part
+      messages << new(mail, options) if messages.empty?
+      messages.each(&:render)
+      messages.sort
+    end
+
+    def initialize(mail, options = {})
+      @mail = mail
+      @location = options[:location]
+      @part = options[:part]
+      @template = options[:message_template]
+      @attachments = []
+    end
+
+    def render
+      FileUtils.mkdir_p(@location)
+
+      if mail.attachments.any?
+        attachments_dir = File.join(@location, 'attachments')
+        FileUtils.mkdir_p(attachments_dir)
+        mail.attachments.each do |attachment|
+          filename = attachment_filename(attachment)
+          path = File.join(attachments_dir, filename)
+
+          unless File.exist?(path) # true if other parts have already been rendered
+            File.open(path, 'wb') { |f| f.write(attachment.body.raw_source) }
+          end
+
+          @attachments << [attachment.filename, "attachments/#{CGI.escape(filename)}"]
+        end
+      end
+
+      File.open(filepath, 'w') do |f|
+        f.write ERB.new(template).result(binding)
+      end
+    end
+
+    def template
+      File.read(File.expand_path("../templates/#{@template}.html.erb", __FILE__))
+    end
+
+    def filepath
+      File.join(@location, "#{type}.html")
+    end
+
+    def content_type
+      @part && @part.content_type || @mail.content_type
+    end
+
+    def body
+      @body ||= begin
+        body = (@part || @mail).decoded
+
+        mail.attachments.each do |attachment|
+          body.gsub!(attachment.url, "attachments/#{attachment_filename(attachment)}")
+        end
+
+        body
+      end
+    end
+
+    def from
+      @from ||= Array(@mail['from']).join(", ")
+    end
+
+    def sender
+      @sender ||= Array(@mail['sender']).join(", ")
+    end
+
+    def to
+      @to ||= Array(@mail['to']).join(", ")
+    end
+
+    def cc
+      @cc ||= Array(@mail['cc']).join(", ")
+    end
+
+    def bcc
+      @bcc ||= Array(@mail['bcc']).join(", ")
+    end
+
+    def reply_to
+      @reply_to ||= Array(@mail['reply-to']).join(", ")
+    end
+
+    def type
+      content_type =~ /html/ ? "rich" : "plain"
+    end
+
+    def encoding
+      body.respond_to?(:encoding) ? body.encoding : "utf-8"
+    end
+
+    def auto_link(text)
+      text.gsub(URI::Parser.new.make_regexp(%W[https http])) do |link|
+        "<a href=\"#{ link }\">#{ link }</a>"
+      end
+    end
+
+    def h(content)
+      CGI.escapeHTML(content)
+    end
+
+    def attachment_filename(attachment)
+      attachment.filename.gsub(/[^\w\-_.]/, '_')
+    end
+
+    def <=>(other)
+      order = %w[rich plain]
+      order.index(type) <=> order.index(other.type)
+    end
+  end
+end
diff --git a/lib/action_mailer/sendpulse/railtie.rb b/lib/action_mailer/sendpulse/railtie.rb
new file mode 100644
index 0000000..b503349
--- /dev/null
+++ b/lib/action_mailer/sendpulse/railtie.rb
@@ -0,0 +1,12 @@
+module Sendpulse
+  class Railtie < Rails::Railtie
+    initializer "sendpulse.add_delivery_method" do
+      ActiveSupport.on_load :action_mailer do
+        ActionMailer::Base.add_delivery_method(
+          :sendpulse,
+          Sendpulse::DeliveryMethod
+        )
+      end
+    end
+  end
+end
diff --git a/api/sendpulse_api.rb b/lib/api/sendpulse_api.rb
similarity index 99%
rename from api/sendpulse_api.rb
rename to lib/api/sendpulse_api.rb
index f1405aa..c9abd48 100644
--- a/api/sendpulse_api.rb
+++ b/lib/api/sendpulse_api.rb
@@ -114,7 +114,7 @@ def send_request(path, method = 'GET', data = {}, use_token = true)
     http.use_ssl = true if @protocol == 'https'
 
     token = {}
-    token.merge!( 'authorization' => @token ) if use_token
+    token.merge!( 'Authorization' => "Bearer #{@token}" ) if use_token
 
     case method
       when 'POST'
@@ -637,4 +637,4 @@ def smtp_send_mail(email)
     send_request('smtp/emails', 'POST', data)
   end
 
-end
\ No newline at end of file
+end
diff --git a/lib/sendpulse-rest-api-ruby.rb b/lib/sendpulse-rest-api-ruby.rb
new file mode 100644
index 0000000..953369f
--- /dev/null
+++ b/lib/sendpulse-rest-api-ruby.rb
@@ -0,0 +1,2 @@
+require_relative 'api/sendpulse_api.rb'
+require_relative 'action_mailer/sendpulse.rb'
diff --git a/sendpulse-rest-api-ruby.gemspec b/sendpulse-rest-api-ruby.gemspec
new file mode 100644
index 0000000..247da51
--- /dev/null
+++ b/sendpulse-rest-api-ruby.gemspec
@@ -0,0 +1,61 @@
+# Generated by jeweler
+# DO NOT EDIT THIS FILE DIRECTLY
+# Instead, edit Jeweler::Tasks in Rakefile, and run 'rake gemspec'
+# -*- encoding: utf-8 -*-
+# stub: sendpulse-rest-api-ruby 1.0.0 ruby lib
+
+Gem::Specification.new do |s|
+  s.name = "sendpulse-rest-api-ruby".freeze
+  s.version = "1.0.0"
+
+  s.required_rubygems_version = Gem::Requirement.new(">= 0".freeze) if s.respond_to? :required_rubygems_version=
+  s.require_paths = ["lib".freeze]
+  s.authors = ["SendPulse Tech Team".freeze]
+  s.date = "2017-06-09"
+  s.description = "A simple SendPulse REST client library and example for Ruby.".freeze
+  s.email = "tech@sendpulse.com".freeze
+  s.extra_rdoc_files = [
+    "LICENSE",
+    "README.md"
+  ]
+  s.files = [
+    "Gemfile",
+    "Gemfile.lock",
+    "LICENSE",
+    "README.md",
+    "Rakefile",
+    "VERSION",
+    "example.rb",
+    "lib/api/sendpulse_api.rb",
+    "lib/sendpulse-rest-api-ruby.rb"
+  ]
+  s.homepage = "http://github.com/sendpulse/sendpulse-rest-api-ruby".freeze
+  s.licenses = ["MIT".freeze]
+  s.rubygems_version = "2.6.12".freeze
+  s.summary = "A simple SendPulse REST client library and example for Ruby.".freeze
+
+  if s.respond_to? :specification_version then
+    s.specification_version = 4
+
+    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
+      s.add_development_dependency(%q<shoulda>.freeze, [">= 0"])
+      s.add_development_dependency(%q<rdoc>.freeze, ["~> 3.12"])
+      s.add_development_dependency(%q<bundler>.freeze, ["~> 1.0"])
+      s.add_development_dependency(%q<jeweler>.freeze, ["~> 2.3.0"])
+      s.add_development_dependency(%q<simplecov>.freeze, [">= 0"])
+    else
+      s.add_dependency(%q<shoulda>.freeze, [">= 0"])
+      s.add_dependency(%q<rdoc>.freeze, ["~> 3.12"])
+      s.add_dependency(%q<bundler>.freeze, ["~> 1.0"])
+      s.add_dependency(%q<jeweler>.freeze, ["~> 2.3.0"])
+      s.add_dependency(%q<simplecov>.freeze, [">= 0"])
+    end
+  else
+    s.add_dependency(%q<shoulda>.freeze, [">= 0"])
+    s.add_dependency(%q<rdoc>.freeze, ["~> 3.12"])
+    s.add_dependency(%q<bundler>.freeze, ["~> 1.0"])
+    s.add_dependency(%q<jeweler>.freeze, ["~> 2.3.0"])
+    s.add_dependency(%q<simplecov>.freeze, [">= 0"])
+  end
+end
+