diff --git a/README.md b/README.md
index 656b819ac..8179a63c7 100644
--- a/README.md
+++ b/README.md
@@ -781,7 +781,15 @@ edit_contact GET    /contacts/:id/edit(.:format) contacts#edit
 ```
 
 To manually add in the nested routes you can use the `jsonapi_links`, `jsonapi_related_resources` and
-`jsonapi_related_resource` inside the block.
+`jsonapi_related_resource` inside the block. Or, you can add the default set of nested routes using the `jsonapi_relationships` method. For example:
+
+```ruby
+Rails.application.routes.draw do
+  jsonapi_resources :contacts do
+    jsonapi_relationships
+  end
+end
+```
 
 ###### `jsonapi_links`
 
diff --git a/lib/jsonapi/request.rb b/lib/jsonapi/request.rb
index db9989c3c..2de491f0b 100644
--- a/lib/jsonapi/request.rb
+++ b/lib/jsonapi/request.rb
@@ -400,7 +400,7 @@ def parse_single_replace_operation(data, keys)
       end
 
       type = data[:type]
-      if type.nil? || type != format_key(@resource_klass._type).to_s
+      if type.nil? || type != @resource_klass._type.to_s
         raise JSONAPI::Exceptions::ParameterMissing.new(:type)
       end
 
diff --git a/lib/jsonapi/routing_ext.rb b/lib/jsonapi/routing_ext.rb
index 09e7ce391..f7941cbd3 100644
--- a/lib/jsonapi/routing_ext.rb
+++ b/lib/jsonapi/routing_ext.rb
@@ -18,59 +18,58 @@ def format_route(route)
         end
 
         def jsonapi_resource(*resources, &block)
-          resource_type = resources.first
-          res = JSONAPI::Resource.resource_for(resource_type_with_module_prefix(resources.first))
+          @resource_type = resources.first
+          res = JSONAPI::Resource.resource_for(resource_type_with_module_prefix(@resource_type))
 
           options = resources.extract_options!.dup
-          options[:controller] ||= resource_type
+          options[:controller] ||= @resource_type
           options.merge!(res.routing_resource_options)
-          options[:path] = format_route(resource_type)
+          options[:path] = format_route(@resource_type)
 
-          resource resource_type, options do
-            @scope[:jsonapi_resource] = resource_type
+          resource @resource_type, options do
+            @scope[:jsonapi_resource] = @resource_type
 
             if block_given?
               yield
             else
-              res._associations.each do |association_name, association|
-                if association.is_a?(JSONAPI::Association::HasMany)
-                  jsonapi_links(association_name)
-                else
-                  jsonapi_link(association_name)
-                end
-              end
+              jsonapi_relationships
+            end
+          end
+        end
+
+        def jsonapi_relationships
+          res = JSONAPI::Resource.resource_for(resource_type_with_module_prefix(@resource_type))
+          res._associations.each do |association_name, association|
+            if association.is_a?(JSONAPI::Association::HasMany)
+              jsonapi_links(association_name)
+              jsonapi_related_resources(association_name)
+            else
+              jsonapi_link(association_name)
+              jsonapi_related_resource(association_name)
             end
           end
         end
 
         def jsonapi_resources(*resources, &block)
-          resource_type = resources.first
-          res = JSONAPI::Resource.resource_for(resource_type_with_module_prefix(resources.first))
+          @resource_type = resources.first
+          res = JSONAPI::Resource.resource_for(resource_type_with_module_prefix(@resource_type))
 
           options = resources.extract_options!.dup
-          options[:controller] ||= resource_type
+          options[:controller] ||= @resource_type
           options.merge!(res.routing_resource_options)
 
           # Route using the primary_key. Can be overridden using routing_resource_options
           options[:param] ||= res._primary_key
 
-          options[:path] = format_route(resource_type)
+          options[:path] = format_route(@resource_type)
 
-          resources resource_type, options do
-            @scope[:jsonapi_resource] = resource_type
+          resources @resource_type, options do
+            @scope[:jsonapi_resource] = @resource_type
 
             if block_given?
               yield
             else
-              res._associations.each do |association_name, association|
-                if association.is_a?(JSONAPI::Association::HasMany)
-                  jsonapi_links(association_name)
-                  jsonapi_related_resources(association_name)
-                else
-                  jsonapi_link(association_name)
-                  jsonapi_related_resource(association_name)
-                end
-              end
+              jsonapi_relationships
             end
           end
         end
diff --git a/test/fixtures/active_record.rb b/test/fixtures/active_record.rb
index 697b57ccb..d2b4af2eb 100644
--- a/test/fixtures/active_record.rb
+++ b/test/fixtures/active_record.rb
@@ -755,4 +755,4 @@ class BadlyNamedAttributesResource < JSONAPI::Resource
 betax = Planet.create(name: 'Beta X', description: 'Newly discovered Planet X', planet_type_id: unknown.id)
 betay = Planet.create(name: 'Beta X', description: 'Newly discovered Planet Y', planet_type_id: unknown.id)
 betaz = Planet.create(name: 'Beta X', description: 'Newly discovered Planet Z', planet_type_id: unknown.id)
-betaw = Planet.create(name: 'Beta W', description: 'Newly discovered Planet W')
\ No newline at end of file
+betaw = Planet.create(name: 'Beta W', description: 'Newly discovered Planet W')
diff --git a/test/test_helper.rb b/test/test_helper.rb
index b2ca32e53..b84abb03f 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -66,7 +66,9 @@ def as_json(options = nil)
   jsonapi_resources :people
   jsonapi_resources :comments
   jsonapi_resources :tags
-  jsonapi_resources :posts
+  jsonapi_resources :posts do
+    jsonapi_relationships
+  end
   jsonapi_resources :sections
   jsonapi_resources :iso_currencies
   jsonapi_resources :expense_entries