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![Ticket = new Schema({
tId:{
type:String,
required:true
},
title:{
type:String,
required:true
},
organizationDate:{
type:Date,
required:true
},
owner:{
type:String,
validate:[validator({
length:{
min:3,
max:20
}
}), "username"],
required:false,
default:"anonymous"
}
});
Yes, model definition in json format. Actually, all
the data in nodejs world are in json format.
Model definition is done. This model should be
exists under “models” folder.
Require this model when you need to use
Assume this model defined in a file called
“Ticket.js”](https://image.slidesharecdn.com/completemvconnodejs-131104010401-phpapp02/85/Complete-MVC-on-NodeJS-29-320.jpg)
![Ticket = new Schema({
tId:{
type:String,
required:true
},
title:{
type:String,
required:true
},
organizationDate:{
type:Date,
required:true
},
owner:{
type:String,
validate:[validator({
length:{
min:3,
max:20
}
}), "username"],
required:false,
default:"anonymous"
}
});
Yes, model definition in json format. Actually, all
the data in nodejs world are in json format.
Model definition is done. This model should be
exists under “models” folder.
Require this model when you need to use
Assume this model defined in a file called
“Ticket.js”](https://image.slidesharecdn.com/completemvconnodejs-131104010401-phpapp02/75/Complete-MVC-on-NodeJS-29-2048.jpg)
Uploaded byHüseyin BABAL
Complete MVC on NodeJS
This document discusses building scalable network applications using Node.js. It begins with an introduction to Node.js, describing it as a software platform built on the Chrome V8 engine for building scalable applications using JavaScript on the server side. It then discusses why to use Node.js, noting that its single-threaded and event-driven model avoids issues with memory usage that can occur in multi-threaded models. The document proceeds to explain event loops and non-blocking I/O in Node.js. It then provides an example of building a simple web server with Node.js. Finally, it introduces Express.js and provides an overview of how to structure an Express application using MVC patterns with models, views,
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Complete MVC on NodeJS
- 1. Complete MVC withNodeJS Hüseyin BABAL Software Developer, CSM @Sony Eurasia
- 2. Who Am I HüseyinBABAL Software Developer, CSM @Sony Eurasia Open Source Comitter Linux, JAVA, PHP, MongoDB, Javascript, NodeJS, Elasticsearch are my job GDG event speaker
- 3.
- 4. NodeJS is asoftware platform that is used to build scalable network applications
- 5. ● Author: Ryan LienhartDahl ● Built on Chrome V8 Engine ● Written in C++, Javascript ● Sponsored by Joyent
- 6.
- 7. V8 Engine JS onServer Side Single Thread Event Loop Non-Blocking I/O
- 8.
- 9.
- 10. Apache:Memory usage increases per connection Nginx:Constant memoryusage per connection, because nginx uses event loop mechanism
- 11. Dealing with I/OProblems ● Synchronous - One request at a time ● Fork - New process for each request ● Thread - New thread for each request
- 12. Thread per requestis memory expensive! What if all threads are busy? Multithread code is; ● difficult to debug ● difficult to write ● in efficiently performed
- 13. How about thisanswer? Single thread with non-blocking I/O
- 14. WHAT IS EVENTLOOP AND NON-BLOCKING I/O?
- 15. Blocking I/O Busy process Block processuntil job is done Process available Non-Blocking I/O Event Stack cb Do the job and notify program when it’s done
- 16. Assign jobs toevent stack, you will be notified One single thread can handle entire program Traditional threaded architecture is not an easy thing More thread means more process, equals more memory Min cost, speed development Scalable architecture Callback functions
- 17. SEEMS COOL, HOW ABOUTCODING?
- 18. You know JS?Then you code NPM (Node Package Manager) Available Windows/Linux/MAC Webstorm is the best, also use notepad++
- 19. npm install “module_name” Importmodule with “require” File : server.js Simple web server!!! node server.js
- 20. To test webserver, go to url http://127.0.0.1:1337 What about if you try to make a system have such url: http://127.0.0.1:1337/product/1234.html ???
- 21.
- 22. Sinatra inspired webdevelopment framework for node.js
- 23.
- 24. You have alreadyinstalled node.js before… npm install express -g That’s it! You can use express framework on your project
- 25. Ideal project structurefor nodejs based web applications
- 26.
- 27. A quick scenario… ●User goes http://127.0.0.1:1337/tickets/devfestticket54332.html ● System fetchs ticket information from db by using id(54332) ● Assign ticket information to view ● Render view and send to user browser
- 28.
- 29. Ticket = newSchema({ tId:{ type:String, required:true }, title:{ type:String, required:true }, organizationDate:{ type:Date, required:true }, owner:{ type:String, validate:[validator({ length:{ min:3, max:20 } }), "username"], required:false, default:"anonymous" } }); Yes, model definition in json format. Actually, all the data in nodejs world are in json format. Model definition is done. This model should be exists under “models” folder. Require this model when you need to use Assume this model defined in a file called “Ticket.js”
- 30.
- 31. *Controller isthe behaviourof your program *Put your controller definition files under “controller” folder.
- 32.
- 33. View files areunder “views” folder. You can use template engines with express.js, in this scenario, “jade” used Create ticket-detail.jade, put it under “views” folder
- 34.
- 35.
- 36. Controllers, Views, Models managed bymain bootstrap file called “app.js” 1 2 Go to project folder and say 3 node app.js 4 5
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