Standardizing API responses

Gemfile

 source "http://rubygems.org"
-gem "sinatra", "1.1.2"
-gem "sinatra-reloader", "0.5.0"
-gem "sinatra-namespace", "0.6.1"
-gem "ohm", "0.1.3"
-gem "ohm-contrib", "0.1.0"
-gem "haml", "3.0.25"
+gem "sinatra", "= 1.1.2"
+gem "sinatra-namespace", "= 0.6.1"
+gem "ohm", "= 0.1.3"
+gem "ohm-contrib", "= 0.1.0"
+gem "haml", "= 3.0.25"
+group :development do
+  gem "sinatra-reloader", "= 0.5.0"
+end
+platforms :mri do
+  gem "yajl-ruby", "= 0.7.9", :require => "yajl"
+end
+platforms :jruby do
+  gem "json-jruby", "= 1.4.6", :require => "json"
+end

Gemfile.lock

@@ -3,6 +3,9 @@ GEM
   specs:
     backports (1.18.2)
     haml (3.0.25)
+    json (1.4.6-java)
+    json-jruby (1.4.6-java)
+      json (= 1.4.6)
     monkey-lib (0.5.4)
       backports
     nest (1.1.0)
@@ -29,14 +32,18 @@ GEM
       monkey-lib (~> 0.5.0)
       sinatra (~> 1.0)
     tilt (1.2.1)
+    yajl-ruby (0.7.9)
 
 PLATFORMS
+  java
   ruby
 
 DEPENDENCIES
   haml (= 3.0.25)
+  json-jruby (= 1.4.6)
   ohm (= 0.1.3)
   ohm-contrib (= 0.1.0)
   sinatra (= 1.1.2)
   sinatra-namespace (= 0.6.1)
   sinatra-reloader (= 0.5.0)
+  yajl-ruby (= 0.7.9)

app.rb

 require 'sinatra/reloader' if development?
 require 'ohm'
-require 'json'
+begin
+  require 'yajl'
+rescue LoadError  
+  require 'json'
+end  
 require 'haml'
 
 require File.join(File.dirname(__FILE__), 'config/db')
@@ -168,16 +172,18 @@ namespace "/a" do
   end
 
   put '/:appname/?' do |appname|
-    app = Application.find(:name => appname).first ||= Application.create(:name => appname)
+    required_params = ["name"]
     data = JSON.parse(request.body.read)
-    app.name = data['name']
-    if app.valid?
-      if app.save
-        r = {"result" => "success","id" => "#{app.id}"}
-        r.to_json
+    if data.keys.sort == required_params.sort && data['name'] == appname
+      app = Application.find_or_create(:name => appname)
     else
-        raise "#{app.errors}"
+      raise "Missing or invalid parameters"
     end  
+    if app.valid?
+      action = app.is_new? ? "create" : "update"
+      app.save
+      r = {"result" => "success","id" => app.id, "action" => action, "name" => app.name }
+      r.to_json
     else
       raise "#{app.errors}"
     end
@@ -257,8 +263,10 @@ namespace '/c' do
     data = JSON.parse(request.body.read)
     data.keys.sort == required_params.sort  ? (config.format = data["format"]; config.body = data["body"]) : (raise "Missing Parameters")
     if config.valid?
+      action = config.is_new? ? "create" : "update"
+      dependency_action = app.is_new? ? "created" : "updated"
       config.save
-      r = {"result" => "success","id" => "#{config.id}"}
+      r = {"result" => "success","id" => "#{config.id}", "action" => action, "dependencies" => dependency_action, "application" => app.name, "item" => config.name}
       r.to_json
     else
       raise "#{config.errors}"

irbstub.rb

 require "bundler/setup"
 
 require 'ohm'
-require 'json'
+begin
+  require 'yajl'
+rescue LoadError
+  require 'json'
+end
 
 require File.join(File.dirname(__FILE__), 'config/db')
 require File.join(File.dirname(__FILE__), 'models')

models.rb

@@ -25,6 +25,10 @@ class Host < Ohm::Model
     super.merge(:name => name, :status => status, :updated_at => updated_at, :services => arr)
   end
 
+  def is_new?
+    self.created_at == self.updated_at
+  end
+
   class << self
   def find_or_create(opts = {})
     begin
@@ -67,6 +71,10 @@ class Service < Ohm::Model
   def to_hash
     super.merge(:name => name, :status => status, :updated_at => updated_at, :host => Host[host_id].name)
   end
+
+  def is_new?
+    self.created_at == self.updated_at
+  end
 end
 
 class Configuration < Ohm::Model
@@ -78,6 +86,7 @@ class Configuration < Ohm::Model
   attribute :name
   attribute :format
   attribute :body
+  attribute :new_record
   reference :application, Application
 
   index :name
@@ -93,10 +102,18 @@ class Configuration < Ohm::Model
     super.merge(:name => name, :format => format, :body => body, :update_at => updated_at, :application => Application[application_id].name)
   end
 
+  def is_new?
+    self.created_at == self.updated_at
+  end
+
   class << self
   def find_or_create(opts={})
     begin
-      find(opts).first.nil? ? (conf = create(opts)) : (conf = find(opts).first)
+      if find(opts).first.nil?
+        conf = create(opts)
+      else  
+        conf = find(opts).first
+      end  
     rescue Exception => e
       e.message
     end
@@ -126,6 +143,10 @@ class Application < Ohm::Model
     super.merge(:name => name, :updated_at => updated_at, :configurations => arr)
   end
 
+  def is_new?
+    self.created_at == self.updated_at
+  end
+
   class << self
   def find_or_create(opts = {})
     begin

setup.rb

 require 'ohm'
-require 'json'
+begin
+  require 'yajl'
+rescue LoadError
+  require 'json'
+end
 
 require File.join(File.dirname(__FILE__), 'config/db')
 require File.join(File.dirname(__FILE__), 'models')

views/200.erb

+<%= {:status => "success"}.merge(api_call_results).to_json %>