Recall: n-Layer Code Structure & Org Structure What’s NodeJS Who are applying NodeJS Why considering NodeJS for Ctrip Risks & Issues Demo & QA

1. Full-Stack-Development with
NodeJS
携程Mobile/Online 应用场景分析

2. Agenda
• Recall: n-Layer Code Structure & Org Structure
• What’s NodeJS
• Who are applying NodeJS
• Why considering NodeJS for Ctrip
• Risks & Issues
• Demo & QA

3. n-Layer Distilled – Tech Stack
e-Commerce System (frontend + backend)
FrontEnd BackEnd
JobWS Svc Proxies
SOA/Asmx/WCF/
Servlet/RESTful Svc
Technology Center
Controllers, Svc Proxies
Presentation Layer
Application Layer
Domain Layer
Infrastructure Layer
HTML/JS Aspx/Servlet
Ascx/Taglib/JSF
DAL Fx/Svc, Data Access Layer, etc.
ADO.NET, JDBC, ORM, etc.
Framework, Utils, etc.
Utils
OOD &
DDD
WinSvc

4. Code Arch to Org Arch – Ctrip Samples
• Ctrip Flight Dev Team
– Frontend  Presentation + Application
– Backend  API (SOA) + Domain + Data
• Ctrip Hotel Dev Team
– Data Dev Team  DB/SQL/Repl/DAL
• Ctrip Fx Dev Team
– Frontend  Presentation + Application
– Backend  API (RESTful) + Domain + Data

5. Code Arch to Org Arch – Int’l Flight Team
航空公司SNS 无线APP Online 分销Offline
搜索查询
资源共享平台API
GDS Amadeus Sabre Galileo 中航信
Presentation
Layer (View)
Application
Layer (Controller)
Domain Layer
(API)
Infrastructure
Layer (internal)
Infrastructure
Layer (external)
Frontend Dev Team
Backend Dev Team

6. Agenda
• Recall: n-Layer Code Structure & Org Structure
• What’s NodeJS
• Who are applying NodeJS
• Why considering NodeJS for Ctrip
• Risks & Issues
• Demo

7. What’s NodeJS
• 2009.5 Ryan Dahl 发布于GitHub，总排名#3
• 基于Google V8 引擎的Web & Socket Server
• 使用Javascript 编写服务端代码，前后通吃
• Single Thread, Event Driven, Non-blocking IO
• Light-weight, Scale-out, Cluster-enabled
• 接近70,000 NPM (Node Packaged Modules)
• 成熟的社区，热情贡献者，Full-Stack 呼声

8. Who are applying NodeJS (国外)
• LinkedIn
– 2012.10 将所有移动应用服务从Ruby on Rails 迁到NodeJS
• Groupon
– 2013.10 将所有应用从Ruby on Rails 迁到NodeJS
• eBay
– 2012.3 在GitHub 发布ql.io 框架，可认为是Service Aggregator
– 2013.5 发布第一个线上NodeJS 项目
• PayPal
– 2012.4 使用NodeJS 在6 周内完成支付系统重写
– 2013.1 在GitHub 发布Kraken 框架，两年内将大规模使用
• Walmart  2014 年底电商平台全上NodeJS
• Google, Yahoo, Netflix, AWS, Azure, etc.

9. Who are applying NodeJS (国内)
• 淘宝
– 淘宝指数、数据魔方、时光机
– CNodeJS 社区
• 网易
– 2012.11 在GitHub 发布pomelo 框架
– 移动推送、Web 推送采用pomelo 框架构建
• 腾讯推送、百度推送、搜狐推送、新浪微博DB Proxy
• 去哪儿、点点、花瓣、雪球、小米手机销售、etc.
• 携程 DVF RESTful API、Real-Time Crawler (Open House)

10. 携程最新进展：
1、框架已构建Ctrip NPM Repository
2、Clog via edge, SOA via Node native
3、门票v5.8 H5/Hybrid 接入NodeJS

11. Agenda
• Recall: n-Layer Code Structure & Org Structure
• What’s NodeJS
• Who are applying NodeJS
• Why considering NodeJS for Ctrip
• Risks & Issues & Countermeasure
• Demo

12. Why considering NodeJS for Ctrip
• 高性能，可减少服务器(non-blocking IO, IOCP on Windows)
• 开发效率高，减少集成(Same Javascript + Less Integration)
• 易于修改和维护(由管道连接小模块构成)
• DRY Principle：View & Controller 共用一套验证逻辑
• Frontend == View + Controller，Controller 是短板
• Controller == Model (SOA 1.0/2.0) Composing & Tailoring
• 适合IO-intensive 场景，不适合CPU-intensive 场景
• 机票、酒店已做前后端分离，可在前端团队尝试
• 强烈建议看这篇文章：淘宝基于NodeJS 全栈开发

13. Frontend & Backend – Tech Stack

14. Risk & Issue & Countermeasure
• 思想理念的转变 Controller from C# to JS
• 团队分工的转变 Frontend Full-Stack-Engineer
and Full-Stack-Development
• 同步开发模式 异步开发模式+ 严格异常处理
• 框架支持 Clog、SOA 已验证没问题，可稳定运
行(demo)，Cfx 需扩展，但不动核心，CI 原生支持
• 运维支持 NodeJS module for Zabbix
• 其它SOA 支持 NodeJS module for SOAP/REST
• NodeJS & NPM  框架& 系统研发(C/C++/Driver支持)

15. 请收藏两个Mail Groups：
1、技术支持：RDkjts
2、产品建议： KJCP

16. Demo #1 – ql.io for service composing
& tailoring

17. Demo #2 – Send log via Clog .NET client

18. Demo #3 – Send log via SOA 2.0 client

19. Demo #4 – Visit .NET Service via SOAP

20. Demo #5 – One rule set via nools run
@ both node-side and browser-side

21. Demo #6 – One js via browserify run @
both node-side and browser-side

22. Q & A