add client side registration feature

app/assets/javascripts/api/v1/registrations.js

@@ -0,0 +1,2 @@
+// Place all the behaviors and hooks related to the matching controller here.
+// All this logic will automatically be available in application.js.

app/assets/stylesheets/api/v1/registrations.css

@@ -0,0 +1,4 @@
+/*
+  Place all the styles related to the matching controller here.
+  They will automatically be included in application.css.
+*/

app/controllers/api/v1/registrations_controller.rb

@@ -0,0 +1,17 @@
+class Api::V1::RegistrationsController < ApplicationController
+  before_filter :allow_cors
+
+  respond_to :json
+  def create
+
+    user = User.new(params[:user])
+    if user.save
+      render :json=> user.as_json(:auth_token=>user.auth_keys.last.value, :email=>user.email), :status=>201
+      return
+    else
+      warden.custom_failure!
+      render :json=> user.errors, :status=>422
+    end
+  end
+
+end

app/controllers/api/v1/sessions_controller.rb

@@ -12,7 +12,6 @@ class Api::V1::SessionsController < Devise::SessionsController
             token: current_user.auth_keys.last.value,
             avatar: current_user.avatar,
             name: current_user.preferred_name ? current_user.preferred_name : '匿名'
-
         }
 
     }

app/helpers/api/v1/registrations_helper.rb

@@ -0,0 +1,2 @@
+module Api::V1::RegistrationsHelper
+end

config/routes.rb

@@ -50,6 +50,7 @@ Libr::Application.routes.draw do
     namespace :v1 do
       devise_scope :user do
         resources :sessions, :only => [:create, :destroy, :failure]
+        resources :registrations, :only => [:create]
       end
 
       get 'locations/detail' => 'locations#get_location'

spec/controllers/api/v1/registrations_controller_spec.rb

@@ -0,0 +1,5 @@
+require 'spec_helper'
+
+describe Api::V1::RegistrationsController do
+
+end

spec/helpers/api/v1/registrations_helper_spec.rb

@@ -0,0 +1,15 @@
+require 'spec_helper'
+
+# Specs in this file have access to a helper object that includes
+# the Api::V1::RegistrationsHelper. For example:
+#
+# describe Api::V1::RegistrationsHelper do
+#   describe "string concat" do
+#     it "concats two strings with spaces" do
+#       expect(helper.concat_strings("this","that")).to eq("this that")
+#     end
+#   end
+# end
+describe Api::V1::RegistrationsHelper do
+  pending "add some examples to (or delete) #{__FILE__}"
+end