From d9ef54a998ac391b3ef3989637c64a0785e69ed3 Mon Sep 17 00:00:00 2001
From: ezekg <ezekg@yahoo.com>
Date: Thu, 22 Dec 2016 08:58:32 -0600
Subject: [PATCH 1/3] Add library configuration object

Implements a global configuration object so that we can conditionally
register things such as the renderer, parameter parser and mime type.
---
 lib/jsonapi/rails/configuration.rb | 19 +++++++++++++++
 lib/jsonapi/rails/railtie.rb       | 21 ++++++++++------
 spec/config_spec.rb                | 39 ++++++++++++++++++++++++++++++
 3 files changed, 72 insertions(+), 7 deletions(-)
 create mode 100644 lib/jsonapi/rails/configuration.rb
 create mode 100644 spec/config_spec.rb

diff --git a/lib/jsonapi/rails/configuration.rb b/lib/jsonapi/rails/configuration.rb
new file mode 100644
index 0000000..de11b77
--- /dev/null
+++ b/lib/jsonapi/rails/configuration.rb
@@ -0,0 +1,19 @@
+module JSONAPI
+  module Rails
+    class Configuration < ActiveSupport::InheritableOptions; end
+
+    DEFAULT_CONFIG = {
+      register_parameter_parser: true,
+      register_mime_type: true,
+      register_renderers: true
+    }.freeze
+
+    def self.configure(&block)
+      yield config
+    end
+
+    def self.config
+      @config ||= JSONAPI::Rails::Configuration.new(DEFAULT_CONFIG)
+    end
+  end
+end
diff --git a/lib/jsonapi/rails/railtie.rb b/lib/jsonapi/rails/railtie.rb
index 374e6f3..4813a3c 100644
--- a/lib/jsonapi/rails/railtie.rb
+++ b/lib/jsonapi/rails/railtie.rb
@@ -2,6 +2,7 @@
 require 'action_controller'
 require 'active_support'
 
+require 'jsonapi/rails/configuration'
 require 'jsonapi/rails/parser'
 require 'jsonapi/rails/renderer'
 
@@ -20,16 +21,22 @@ class Railtie < ::Rails::Railtie
           require 'jsonapi/rails/action_controller'
           include ::JSONAPI::Rails::ActionController
 
-          Mime::Type.register MEDIA_TYPE, :jsonapi
+          if JSONAPI::Rails.config.register_mime_type
+            Mime::Type.register MEDIA_TYPE, :jsonapi
+          end
 
-          if ::Rails::VERSION::MAJOR >= 5
-            ::ActionDispatch::Request.parameter_parsers[:jsonapi] = PARSER
-          else
-            ::ActionDispatch::ParamsParser::DEFAULT_PARSERS[Mime[:jsonapi]] = PARSER
+          if JSONAPI::Rails.config.register_parameter_parser
+            if ::Rails::VERSION::MAJOR >= 5
+              ::ActionDispatch::Request.parameter_parsers[:jsonapi] = PARSER
+            else
+              ::ActionDispatch::ParamsParser::DEFAULT_PARSERS[Mime[:jsonapi]] = PARSER
+            end
           end
 
-          RENDERERS.each do |key, renderer|
-            ::ActionController::Renderers.add(key, &renderer)
+          if JSONAPI::Rails.config.register_renderers
+            RENDERERS.each do |key, renderer|
+              ::ActionController::Renderers.add(key, &renderer)
+            end
           end
 
           JSONAPI::Deserializable::Resource.configure do |config|
diff --git a/spec/config_spec.rb b/spec/config_spec.rb
new file mode 100644
index 0000000..64bfc36
--- /dev/null
+++ b/spec/config_spec.rb
@@ -0,0 +1,39 @@
+require 'rails_helper'
+
+RSpec.describe JSONAPI::Rails.config do
+  context 'when the default configuration is used' do
+    it 'should register the jsonapi parameter parser' do
+      expect(JSONAPI::Rails.config.register_parameter_parser).to be true
+    end
+
+    it 'should register the jsonapi mime type' do
+      expect(JSONAPI::Rails.config.register_mime_type).to be true
+    end
+
+    it 'should register the jsonapi renderers' do
+      expect(JSONAPI::Rails.config.register_renderers).to be true
+    end
+  end
+
+  context 'when a custom configuration is used' do
+    before do
+      JSONAPI::Rails.configure do |config|
+        config.register_parameter_parser = false
+        config.register_mime_type = false
+        config.register_renderers = false
+      end
+    end
+
+    it 'should not register the jsonapi parameter parser' do
+      expect(JSONAPI::Rails.config.register_parameter_parser).to be false
+    end
+
+    it 'should not register the jsonapi mime type' do
+      expect(JSONAPI::Rails.config.register_mime_type).to be false
+    end
+
+    it 'should not register the jsonapi renderers' do
+      expect(JSONAPI::Rails.config.register_renderers).to be false
+    end
+  end
+end

From 7ff5275911c0a8da8a23d6335007e2d2d741e81c Mon Sep 17 00:00:00 2001
From: Lucas Hosseini <lucas.hosseini@gmail.com>
Date: Tue, 25 Jul 2017 10:23:20 +0200
Subject: [PATCH 2/3] Update configuration.rb

---
 lib/jsonapi/rails/configuration.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/jsonapi/rails/configuration.rb b/lib/jsonapi/rails/configuration.rb
index de11b77..acf4ec6 100644
--- a/lib/jsonapi/rails/configuration.rb
+++ b/lib/jsonapi/rails/configuration.rb
@@ -8,7 +8,7 @@ class Configuration < ActiveSupport::InheritableOptions; end
       register_renderers: true
     }.freeze
 
-    def self.configure(&block)
+    def self.configure
       yield config
     end
 

From 4572df42a26f31c1065006279b2e0632673202db Mon Sep 17 00:00:00 2001
From: Lucas Hosseini <lucas.hosseini@gmail.com>
Date: Tue, 25 Jul 2017 10:25:50 +0200
Subject: [PATCH 3/3] Update config_spec.rb

---
 spec/config_spec.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spec/config_spec.rb b/spec/config_spec.rb
index 64bfc36..67ec9c3 100644
--- a/spec/config_spec.rb
+++ b/spec/config_spec.rb
@@ -1,6 +1,6 @@
 require 'rails_helper'
 
-RSpec.describe JSONAPI::Rails.config do
+describe JSONAPI::Rails.config do
   context 'when the default configuration is used' do
     it 'should register the jsonapi parameter parser' do
       expect(JSONAPI::Rails.config.register_parameter_parser).to be true