Design patterns talk_node_summit
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This document discusses various software design patterns for building applications using Node.js frameworks. It begins by introducing the author and their background in software architecture. It then examines early "natal" Node.js patterns like callbacks and modules. Several popular frameworks like Express, Hapi and LoopBack are evaluated. The document also covers emerging patterns like microservices and mobile backend as a service (mBaaS). It argues that APIs and decomposing monolithic applications into independent services will be increasingly important patterns to address the needs of mobile and IoT development.
Design patterns talk_node_summit
- 1. Shubhra Kar | Products & Education twitter:@shubhrakar mail:[email protected] Frameworks or a Design Pattern ?
- 2. About me StrongLoop Confidential and Proprietary Information – © 2015 u J2EE and SOA architect – Infosys u Performance architect – Wily à CA u Node, mBaaS and API stacks - StrongLoop
- 3. These guys sent me ! Bert Belder Ben Noordhuis Node Core Raymond Feng Ritchie Martori LoopBack / Express Core Sam Roberts Miroslav Bajtos Ryan Graham Plus 15 other full-time open source developers working on Node.js core, modules and tools. Contributing to over 100 open source modules. Supporting banks, retail, IoT companies, startups and internet companies on Node.js
- 5. Patterns evolve to serve market needs; not opinions Thick Web SaaS Mobile IoT
- 6. The new curve: Innovate or Die 10 25 50 100100 50 10 15 40 100 25 Web SaaS Mobile IoT The new curve Concurrent Users Latency Adoption StrongLoop Confidential and Proprietary Information – © 2015
- 7. Pattern 0: Natal patterns StrongLoop Confidential and Proprietary Information – © 2015 Philosophy: KISS (Keep It Simple Stupid) u small core u small modules u small surface area Patterns u reactor u callback u module u observer
- 8. Pattern 1: Convention Web Middleware REST API
- 9. Pros and Cons StrongLoop Confidential and Proprietary Information – © 2015 u Pseudo-Opinionated, Express and Restify are DIY u Middleware u Strengths u Express: Web templating, ecosystem u Restify: REST API u Low learning curve u Restify: Dtrace and SPDY Support u Weakness u Manual CRUD u Manual recursive Testing/Refactoring
- 10. Router in Express StrongLoop Confiden.al and Proprietary Informa.on – © 2015
- 11. Pattern 2: Configuration u Opinionated u Configuration over Convention u Granular HTTP/Webserver control u Good plug-in ecosystem u Supported and well documented u Weakness u Manual CRUD/Refactor/ Testing u No plug & play with Express ecosystem StrongLoop Confidential and Proprietary Information – © 2015 Web Middleware
- 12. Router in hapi StrongLoop Confiden.al and Proprietary Informa.on – © 2015
- 13. Pattern 3 : Full Stack JS StrongLoop Confidential and Proprietary Information – © 2015 {“..”} JSON is the new first class citizen
- 14. Pattern 4: ORM & Isomorphic JS u Model Driven Development u Any data source u Isomorphic JS u Omni-Channel u Share Models (Client/Server) u Loopback & Meteor u Automatic REST API generation, routing, etc u Weakness u Higher learning curve StrongLoop Confidential and Proprietary Information – © 2015
- 15. ORM & Isomorphic JS – Loopback.io JS client JS Server Remoting JS client StrongLoop Confidential and Proprietary Information – © 2015 Developer SDKs
- 16. Router & Swagger in Loopback StrongLoop Confiden.al and Proprietary Informa.on – © 2015
- 17. API Economy driven by Mobile / IoT Mobile and IoT explosion u Sheer number of clients has increased u Clients are increasingly sophis.cated u Node.js is the plaHorm of choice for these API StrongLoop Confiden.al and Proprietary Informa.on – © 2015
- 18. StrongLoop Confidential and Proprietary Information – © 2015 mobile/web clients social & analytics JSON API API XML SQL SOAP Etc. mBaaS Mobile API tier Enterprise Pattern 5: mBaaS
- 19. mBaaS could be on cloud or premises StrongLoop Confidential and Proprietary Information – © 2015 u Closed Source / Commercial u Open Source Key API u Push Notification u Geo Location u Offline Sync u Storage u User Management u Metering, Analytics u Native SDK u Isomorphic JS
- 20. REST API PUSH GEO OFF SYNC DEVICE USER FILE Relational Database Clustered Database Security Gateway Cloud Laptop ( not requested but useful) Connections Tablet Phone IoT SDK API SERVER Quick Example of Use App S Add App Server Storage Relational Database Clustered Database Security Gateway Cloud Firewall SOA Bus ( not sure on this one) Laptop ( not requested but useful) Connections Tablet Phone IoT SDK API SERVER Items for ACL Quick Example of Use App Server Add On App Server REST API GATEWAY Channel SDKs API ENGINE C O N N E C T O R s A P I S D K s Open Source ORM, mBaaS and API framework REST API atabase Security Gateway Cloud Firewall SOA Bus ( not sure on this one) Phone IoT SDK API SERVER Items for ACL Quick Example of Use App Server Add On App Server API Explorer
- 22. Is micro services a pattern too ? StrongLoop Confiden.al and Proprietary Informa.on – © 2015 Not just infrastructure virtualization !
- 23. API “Re-Composition” is good… Relational Database Clustered Database Security Gateway Cloud Laptop ( not requested but useful) Connections Tablet Phone IoT SDK API SERVER Quick Example of Use App Server Relational Database Clustered Database Security Gateway Laptop ( not requested but useful) Connections Tablet Phone IoT SDK Quick E App Server Auth Routing Rate-Limit Proxy Mediation Orchestration Analytics StrongLoop Confidential and Proprietary Information – © 2015
- 24. Why not an API Gateway pattern ? Pattern 6 Security & Social Logins Marquee – Auth, Routing, Throttling, Proxy, Mediation, Aggregation, Virtualization StrongLoop Confidential and Proprietary Information – © 2015
- 25. The need is “DE-COMPOSITION” SaaS Mobile IoTWeb App Server API Server HTML JSON {JSON} {JSON} {JSON}<SOAP/XML> <TABLE> StrongLoop Confidential and Proprietary Information – © 2015
- 26. Pattern 7: Micro-services (Design Time) StrongLoop Confidential and Proprietary Information – © 2015
- 27. StrongLoop Confidential and Proprietary Information – © 2015 Pattern 8: Micro-services (Run Time)
- 28. Now I know !!!
- 29. A Shameless Plug… StrongLoop Confidential and Proprietary Information – © 2015
- 31. First there was Node Thank you! JUST WIN, BABY!