MEAN Stack
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by Samiyuru Senarathne Mean Stack Fast scalable web apps Friday, July 25, 14
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This is an introductory presentation to MEAN stack for web application development which is done at 99X Technology. This presentation is associated with a demonstration application of a instant group chat application which is 100% developed using MEAN stack within the 1h 30m of the presentation duration. Demonstration app: https://github.com/samiyuru/mean-stack-chat-app
Transcript of MEAN Stack
by Samiyuru Senarathne
Mean StackFast scalable web apps
Friday, July 25, 14
Who am I?
I am Samiyuru Senarathne
javascript, Objective C and java background
Web development experience in node, php, python and java
Friday, July 25, 14
What is Mean Stack?
Friday, July 25, 14
Mean Stack is!
A modern web development technology stack
express
Friday, July 25, 14
Why Mean Stack?
Friday, July 25, 14
Isn't it good to use one language everywhere
Reuse code in client and server
Scalability
Advantages & Why?
And we hope we’ll get to develop in this stack in the future
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JS everywhere
Isn't it too slowww....?
Friday, July 25, 14
Node vs ApacheConcurrency Level: 20000Time taken for tests: 1043.076 secondsComplete requests: 1000000Failed requests: 25227 (Connect: 0, Receive: 8409, Length: 8409, Exceptions: 8409)Write errors: 0Total transferred: 81265680 bytesHTML transferred: 18059040 bytesRequests per second: 958.70 [#/sec] (mean)Time per request: 20861.529 [ms] (mean)Time per request: 1.043 [ms] (mean, across all concurrent requests)Transfer rate: 76.08 [Kbytes/sec] received Connection Times (ms) min mean[+/-‐sd] median maxConnect: 0 10201 2391.8 10840 20177Processing: 595 10455 3239.1 10904 39809Waiting: 0 8323 2331.0 8728 38740Total: 1181 20656 4758.5 21795 44333
Concurrency Level: 20000Time taken for tests: 3570.753 secondsComplete requests: 1000000Failed requests: 2617614 (Connect: 0, Receive: 848121, Length: 886497, Exceptions: 882996)Write errors: 0Total transferred: 36832520 bytesHTML transferred: 2372264 bytesRequests per second: 280.05 [#/sec] (mean)Time per request: 71415.058 [ms] (mean)Time per request: 3.571 [ms] (mean, across all concurrent requests)Transfer rate: 10.07 [Kbytes/sec] received Connection Times (ms) min mean[+/-‐sd] median maxConnect: 0 4259 14734.0 0 79497Processing: 4 64979 51442.2 65543 381910Waiting: 0 2725 16784.2 0 249108Total: 87 69238 56233.8 68138 426365
Friday, July 25, 14
Who uses Mean Stack
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Let’s jump to work
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Wait!
Let’s see what we are gonna use!
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We’ll create an app module
Will be using controllers
We’ll use angular $http service
Directivesng-app, ng-controller, ng-model, ng-click, ng-keypress, ng-repeat, ng-class, ng-if
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MongoDB is our database
Start mongodb in terminal
querying the db from mongo shell
Insertion & finding documents from collections
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Node is a platform built on Chrome's JavaScript runtime
Node uses an event-driven, non-blocking I/O model
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Create express app
map static files
get & post routes
respond to client in json
express
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Now let’s jump to work
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Scalability
Are you ready to scale?
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Vertical Scaling
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Horizontal Scaling
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No bottle necks
Mongo Node
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Scale Node
Node enforce shared nothing architecture
Process clustering
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Scale MongoDb
Friday, July 25, 14
Thank You
Friday, July 25, 14
