diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index ef777c0..4c0a765 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -2,20 +2,15 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="42443dfa-4405-4cad-b0d1-6c57eb86e644" name="Default" comment="">
-      <change beforePath="" afterPath="$PROJECT_DIR$/.idea/inspectionProfiles/Project_Default.xml" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/.rspec" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/app/models/item.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/app/models/todo.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/db/migrate/20180216101219_create_todos.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/db/migrate/20180216101247_create_items.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/spec/models/item_spec.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/spec/models/todo_spec.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/spec/rails_helper.rb" />
-      <change beforePath="" afterPath="$PROJECT_DIR$/spec/spec_helper.rb" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/app/controllers/concerns/response.rb" />
+      <change beforePath="" afterPath="$PROJECT_DIR$/spec/support/request_spec_helper.rb" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
-      <change beforePath="$PROJECT_DIR$/Gemfile" afterPath="$PROJECT_DIR$/Gemfile" />
-      <change beforePath="$PROJECT_DIR$/Gemfile.lock" afterPath="$PROJECT_DIR$/Gemfile.lock" />
-      <change beforePath="$PROJECT_DIR$/config/database.yml" afterPath="$PROJECT_DIR$/config/database.yml" />
+      <change beforePath="$PROJECT_DIR$/app/controllers/application_controller.rb" afterPath="$PROJECT_DIR$/app/controllers/application_controller.rb" />
+      <change beforePath="$PROJECT_DIR$/app/controllers/concerns/.keep" afterPath="$PROJECT_DIR$/app/controllers/concerns/exception_handler.rb" />
+      <change beforePath="$PROJECT_DIR$/app/controllers/todos_controller.rb" afterPath="$PROJECT_DIR$/app/controllers/todos_controller.rb" />
+      <change beforePath="$PROJECT_DIR$/config/routes.rb" afterPath="$PROJECT_DIR$/config/routes.rb" />
+      <change beforePath="$PROJECT_DIR$/spec/rails_helper.rb" afterPath="$PROJECT_DIR$/spec/rails_helper.rb" />
+      <change beforePath="$PROJECT_DIR$/spec/requests/todos_spec.rb" afterPath="$PROJECT_DIR$/spec/requests/todos_spec.rb" />
     </list>
     <ignored path="$PROJECT_DIR$/.bundle/" />
     <ignored path="$PROJECT_DIR$/components/" />
@@ -32,31 +27,11 @@
   </component>
   <component name="FileEditorManager">
     <leaf>
-      <file leaf-file-name="items_controller.rb" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/app/controllers/items_controller.rb">
+      <file leaf-file-name="routes.rb" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/config/routes.rb">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="0">
-              <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-              <folding />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file leaf-file-name="todos.rb" pinned="false" current-in-tab="false">
-        <entry file="file://$PROJECT_DIR$/spec/factories/todos.rb">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="108">
-              <caret line="6" column="3" lean-forward="false" selection-start-line="6" selection-start-column="3" selection-end-line="6" selection-end-column="3" />
-              <folding />
-            </state>
-          </provider>
-        </entry>
-      </file>
-      <file leaf-file-name="items.rb" pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/spec/factories/items.rb">
-          <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="126">
-              <caret line="7" column="3" lean-forward="false" selection-start-line="7" selection-start-column="3" selection-end-line="7" selection-end-column="3" />
+            <state relative-caret-position="54">
+              <caret line="3" column="20" lean-forward="false" selection-start-line="3" selection-start-column="20" selection-end-line="3" selection-end-column="20" />
               <folding />
             </state>
           </provider>
@@ -65,8 +40,38 @@
       <file leaf-file-name="todos_controller.rb" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/app/controllers/todos_controller.rb">
           <provider selected="true" editor-type-id="text-editor">
-            <state relative-caret-position="0">
-              <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+            <state relative-caret-position="288">
+              <caret line="16" column="10" lean-forward="true" selection-start-line="16" selection-start-column="10" selection-end-line="16" selection-end-column="10" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="application_controller.rb" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/app/controllers/application_controller.rb">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="36">
+              <caret line="2" column="26" lean-forward="false" selection-start-line="2" selection-start-column="26" selection-end-line="2" selection-end-column="26" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="response.rb" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/app/controllers/concerns/response.rb">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="72">
+              <caret line="4" column="3" lean-forward="true" selection-start-line="4" selection-start-column="3" selection-end-line="4" selection-end-column="3" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="exception_handler.rb" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/app/controllers/concerns/exception_handler.rb">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="162">
+              <caret line="9" column="64" lean-forward="false" selection-start-line="9" selection-start-column="64" selection-end-line="9" selection-end-column="64" />
               <folding />
             </state>
           </provider>
@@ -80,7 +85,6 @@
   <component name="IdeDocumentHistory">
     <option name="CHANGED_PATHS">
       <list>
-        <option value="$PROJECT_DIR$/spec/rails_helper.rb" />
         <option value="$PROJECT_DIR$/Gemfile" />
         <option value="$PROJECT_DIR$/spec/models/todo_spec.rb" />
         <option value="$PROJECT_DIR$/spec/models/item_spec.rb" />
@@ -89,6 +93,14 @@
         <option value="$PROJECT_DIR$/app/models/todo.rb" />
         <option value="$PROJECT_DIR$/spec/factories/todos.rb" />
         <option value="$PROJECT_DIR$/spec/factories/items.rb" />
+        <option value="$PROJECT_DIR$/spec/requests/todos_spec.rb" />
+        <option value="$PROJECT_DIR$/spec/support/request_spec_helper.rb" />
+        <option value="$PROJECT_DIR$/spec/rails_helper.rb" />
+        <option value="$PROJECT_DIR$/config/routes.rb" />
+        <option value="$PROJECT_DIR$/app/controllers/todos_controller.rb" />
+        <option value="$PROJECT_DIR$/app/controllers/concerns/response.rb" />
+        <option value="$PROJECT_DIR$/app/controllers/concerns/exception_handler.rb" />
+        <option value="$PROJECT_DIR$/app/controllers/application_controller.rb" />
       </list>
     </option>
   </component>
@@ -139,6 +151,13 @@
               <item name="app" type="462c0819:PsiDirectoryNode" />
               <item name="controllers" type="462c0819:PsiDirectoryNode" />
             </path>
+            <path>
+              <item name="vereto-api" type="b2602c69:ProjectViewProjectNode" />
+              <item name="vereto-api" type="462c0819:PsiDirectoryNode" />
+              <item name="app" type="462c0819:PsiDirectoryNode" />
+              <item name="controllers" type="462c0819:PsiDirectoryNode" />
+              <item name="concerns" type="462c0819:PsiDirectoryNode" />
+            </path>
             <path>
               <item name="vereto-api" type="b2602c69:ProjectViewProjectNode" />
               <item name="vereto-api" type="462c0819:PsiDirectoryNode" />
@@ -148,19 +167,7 @@
             <path>
               <item name="vereto-api" type="b2602c69:ProjectViewProjectNode" />
               <item name="vereto-api" type="462c0819:PsiDirectoryNode" />
-              <item name="spec" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="vereto-api" type="b2602c69:ProjectViewProjectNode" />
-              <item name="vereto-api" type="462c0819:PsiDirectoryNode" />
-              <item name="spec" type="462c0819:PsiDirectoryNode" />
-              <item name="factories" type="462c0819:PsiDirectoryNode" />
-            </path>
-            <path>
-              <item name="vereto-api" type="b2602c69:ProjectViewProjectNode" />
-              <item name="vereto-api" type="462c0819:PsiDirectoryNode" />
-              <item name="spec" type="462c0819:PsiDirectoryNode" />
-              <item name="models" type="462c0819:PsiDirectoryNode" />
+              <item name="config" type="462c0819:PsiDirectoryNode" />
             </path>
           </expand>
           <select />
@@ -302,12 +309,12 @@
       <option name="presentableId" value="Default" />
       <updated>1518771982661</updated>
       <workItem from="1518771986536" duration="30000" />
-      <workItem from="1518772064427" duration="6225000" />
+      <workItem from="1518772064427" duration="7202000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="6255000" />
+    <option name="totallyTimeSpent" value="7232000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="28" width="1920" height="1026" extended-state="6" />
@@ -319,18 +326,18 @@
       <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="true" content_ui="tabs" />
       <window_info id="Database" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.33799785" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="true" content_ui="tabs" />
+      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
       <window_info id="Message" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Commander" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Inspection" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="5" side_tool="false" content_ui="tabs" />
-      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
       <window_info id="Hierarchy" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="2" side_tool="false" content_ui="combo" />
       <window_info id="Find" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="Ant Build" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
-      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
     </layout>
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -352,14 +359,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/controllers/application_controller.rb">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/app/channels/application_cable/channel.rb">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="0">
@@ -368,14 +367,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/spec/rails_helper.rb">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="275">
-          <caret line="57" column="52" lean-forward="true" selection-start-line="57" selection-start-column="52" selection-end-line="57" selection-end-column="52" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/Gemfile">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="198">
@@ -448,22 +439,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/app/controllers/todos_controller.rb">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
-    <entry file="file://$PROJECT_DIR$/app/controllers/items_controller.rb">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="0">
-          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/spec/factories/todos.rb">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="108">
@@ -480,5 +455,77 @@
         </state>
       </provider>
     </entry>
+    <entry file="file://$PROJECT_DIR$/app/controllers/items_controller.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="0">
+          <caret line="0" column="0" lean-forward="false" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/spec/support/request_spec_helper.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="108">
+          <caret line="6" column="3" lean-forward="false" selection-start-line="6" selection-start-column="3" selection-end-line="6" selection-end-column="3" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/spec/rails_helper.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="396">
+          <caret line="46" column="50" lean-forward="false" selection-start-line="46" selection-start-column="50" selection-end-line="46" selection-end-column="50" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/spec/requests/todos_spec.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="527">
+          <caret line="108" column="3" lean-forward="false" selection-start-line="108" selection-start-column="3" selection-end-line="108" selection-end-column="3" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/config/routes.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="54">
+          <caret line="3" column="20" lean-forward="false" selection-start-line="3" selection-start-column="20" selection-end-line="3" selection-end-column="20" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/controllers/concerns/response.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="72">
+          <caret line="4" column="3" lean-forward="true" selection-start-line="4" selection-start-column="3" selection-end-line="4" selection-end-column="3" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/controllers/concerns/exception_handler.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="162">
+          <caret line="9" column="64" lean-forward="false" selection-start-line="9" selection-start-column="64" selection-end-line="9" selection-end-column="64" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/controllers/todos_controller.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="288">
+          <caret line="16" column="10" lean-forward="true" selection-start-line="16" selection-start-column="10" selection-end-line="16" selection-end-column="10" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/app/controllers/application_controller.rb">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="36">
+          <caret line="2" column="26" lean-forward="false" selection-start-line="2" selection-start-column="26" selection-end-line="2" selection-end-column="26" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
   </component>
 </project>
\ No newline at end of file
diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 4ac8823..ce9cc77 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -1,2 +1,4 @@
 class ApplicationController < ActionController::API
+  include Response
+  include ExceptionHandler
 end
diff --git a/app/controllers/concerns/.keep b/app/controllers/concerns/.keep
deleted file mode 100644
index e69de29..0000000
diff --git a/app/controllers/concerns/exception_handler.rb b/app/controllers/concerns/exception_handler.rb
new file mode 100644
index 0000000..8718061
--- /dev/null
+++ b/app/controllers/concerns/exception_handler.rb
@@ -0,0 +1,14 @@
+module ExceptionHandler
+  extend ActiveSupport::Concern
+
+  included do
+    rescue_from ActiveRecord::RecordNotFound do |e|
+      json_response({ message: e.message}, :not_found)
+    end
+
+    rescue_from ActiveRecord::RecordInvalid do |e|
+      json_response({ message: e.message}, :unprocessable_entity)
+    end
+  end
+
+end
\ No newline at end of file
diff --git a/app/controllers/concerns/response.rb b/app/controllers/concerns/response.rb
new file mode 100644
index 0000000..bfb52e4
--- /dev/null
+++ b/app/controllers/concerns/response.rb
@@ -0,0 +1,5 @@
+module Response
+  def json_response(object, status = :ok)
+    render json: object, status: status
+  end
+end
\ No newline at end of file
diff --git a/app/controllers/todos_controller.rb b/app/controllers/todos_controller.rb
index 06daccf..334d687 100644
--- a/app/controllers/todos_controller.rb
+++ b/app/controllers/todos_controller.rb
@@ -1,2 +1,44 @@
 class TodosController < ApplicationController
+  before_action :set_todo, only: [:show, :update, :destroy]
+
+  # GET /todos
+  def index
+    @todos = Todo.all
+    json_response(@todos)
+  end
+
+  # POST /todos
+  def create
+    @todo = Todo.create!(todo_params)
+    json_response(@todo, :created)
+  end
+
+  # GET /todos/:id
+  def show
+    json_response(@todo)
+  end
+
+  # PUT /todos/:id
+  def update
+    @todo.update(todo_params)
+    head :no_content
+  end
+
+  # DELETE /todos/:id
+  def destroy
+    @todo.destroy
+    head :no_content
+  end
+
+  private
+
+  def todo_params
+    # whitelist params
+    params.permit(:title, :created_by)
+  end
+
+  def set_todo
+    @todo = Todo.find(params[:id])
+  end
+
 end
diff --git a/config/routes.rb b/config/routes.rb
index 787824f..e8b69a7 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,3 +1,6 @@
 Rails.application.routes.draw do
   # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
+  resources :todos do
+    resources :items
+  end
 end
diff --git a/spec/rails_helper.rb b/spec/rails_helper.rb
index d0754dd..0907d03 100644
--- a/spec/rails_helper.rb
+++ b/spec/rails_helper.rb
@@ -32,6 +32,7 @@ end
 # Checks for pending migrations and applies them before tests are run.
 # If you are not using ActiveRecord, you can remove this line.
 ActiveRecord::Migration.maintain_test_schema!
+Dir[Rails.root.join('spec/support/**/*.rb')].each { |f| require f }
 
 RSpec.configure do |config|
   # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
@@ -43,7 +44,7 @@ RSpec.configure do |config|
   config.use_transactional_fixtures = true
   # add `FactoryGirl` methods
   config.include FactoryGirl::Syntax::Methods
-
+  config.include RequestSpecHelper, type: :request
   # start by truncating all the tables but then use the faster transaction strategy the rest of the time.
   config.before(:suite) do
     DatabaseCleaner.clean_with(:truncation)
diff --git a/spec/requests/todos_spec.rb b/spec/requests/todos_spec.rb
index e69de29..3eefdba 100644
--- a/spec/requests/todos_spec.rb
+++ b/spec/requests/todos_spec.rb
@@ -0,0 +1,109 @@
+# spec/requests/todos_spec.rb
+require 'rails_helper'
+
+RSpec.describe 'Todos API', type: :request do
+  # initialize test data
+  let!(:todos) { create_list(:todo, 10) }
+  let(:todo_id) { todos.first.id }
+
+  # Test suite for GET /todos
+  describe 'GET /todos' do
+    # make HTTP get request before each example
+    before { get '/todos' }
+
+    it 'returns todos' do
+      # Note `json` is a custom helper to parse JSON responses
+      expect(json).not_to be_empty
+      expect(json.size).to eq(10)
+    end
+
+    it 'returns status code 200' do
+      expect(response).to have_http_status(200)
+    end
+  end
+
+  # Test suite for GET /todos/:id
+  describe 'GET /todos/:id' do
+    before { get "/todos/#{todo_id}" }
+
+    context 'when the record exists' do
+      it 'returns the todo' do
+        expect(json).not_to be_empty
+        expect(json['id']).to eq(todo_id)
+      end
+
+      it 'returns status code 200' do
+        expect(response).to have_http_status(200)
+      end
+    end
+
+    context 'when the record does not exist' do
+      let(:todo_id) { 100 }
+
+      it 'returns status code 404' do
+        expect(response).to have_http_status(404)
+      end
+
+      it 'returns a not found message' do
+        expect(response.body).to match(/Couldn't find Todo/)
+      end
+    end
+  end
+
+  # Test suite for POST /todos
+  describe 'POST /todos' do
+    # valid payload
+    let(:valid_attributes) { { title: 'Learn Elm', created_by: '1' } }
+
+    context 'when the request is valid' do
+      before { post '/todos', params: valid_attributes }
+
+      it 'creates a todo' do
+        expect(json['title']).to eq('Learn Elm')
+      end
+
+      it 'returns status code 201' do
+        expect(response).to have_http_status(201)
+      end
+    end
+
+    context 'when the request is invalid' do
+      before { post '/todos', params: { title: 'Foobar' } }
+
+      it 'returns status code 422' do
+        expect(response).to have_http_status(422)
+      end
+
+      it 'returns a validation failure message' do
+        expect(response.body)
+            .to match(/Validation failed: Created by can't be blank/)
+      end
+    end
+  end
+
+  # Test suite for PUT /todos/:id
+  describe 'PUT /todos/:id' do
+    let(:valid_attributes) { { title: 'Shopping' } }
+
+    context 'when the record exists' do
+      before { put "/todos/#{todo_id}", params: valid_attributes }
+
+      it 'updates the record' do
+        expect(response.body).to be_empty
+      end
+
+      it 'returns status code 204' do
+        expect(response).to have_http_status(204)
+      end
+    end
+  end
+
+  # Test suite for DELETE /todos/:id
+  describe 'DELETE /todos/:id' do
+    before { delete "/todos/#{todo_id}" }
+
+    it 'returns status code 204' do
+      expect(response).to have_http_status(204)
+    end
+  end
+end
\ No newline at end of file
diff --git a/spec/support/request_spec_helper.rb b/spec/support/request_spec_helper.rb
new file mode 100644
index 0000000..9d0ae03
--- /dev/null
+++ b/spec/support/request_spec_helper.rb
@@ -0,0 +1,7 @@
+# spec/support/request_spec_helper
+module RequestSpecHelper
+  # Parse JSON response to ruby hash
+  def json
+    JSON.parse(response.body)
+  end
+end
\ No newline at end of file