Node.JS Development | | Software Development

Course aims to introduce listeners to NodeJS platform and features and to demonstrate how these features can be used in practice.

JavaScript developers

JavaScript

a:2:{s:4:"TEXT";s:5035:"NodeJS basics
• What is Node.JS?
• Node.JS features
• Multithreaded server request processing
• Node.JS request processing with event loop
• NPM package manager
o package.json
o package-lock.json
o NPM folders
o Semantic versioning in NPM
o NPM commands
o Nodemon
• CommonJS and ES2015 module systems
• Simple http server
• Simple http server returning JSON

Express framework
• Minimal Express app
• MVC pattern
• Express routing
o Request params
o Request query
o App.route()
o Put router to separate module
o Response methods
• Pug template engine
o Loops in Pug
o Conditions and variables
o Each
o Template inheritance
o Block append/prepend
o Mixins
• Middleware
o What is middleware
o How to create your own middleware (example with logging)
o Middleware to work with sessions
o Body-parser to parse POST requests body
o Express structure with middleware
o Middleware to serve static files
o Restricting middleware to route
o Order of middleware calls
• Express in practice
• Rest approach
o MVC pattern with REST server
o REST requests to obtain data
o Creating data in REST
o Updating and deleting data in REST
o Returning data format, Content-Type and Accept headers
o REST API summary and use cases
o REST statelessness vs statefulness
o REST statelessness and scalability
o REST statelessness and reliability
• Using Express to create REST service
• Error handling in Express
o Default error handler
o Custom error class
• Practice: Implement REST service (keeping data in session) [2h]

Async/await syntax. Working with file system.
• Async/await syntax
o Async/await syntax and parallel execution
o Exception processing with Async/await
o Loops with async/await
o Async/await in Express
• Working with files
o Reading from file
o Writing to the file
o Reading file with async/await syntax
o Low-level work with files
o Sync calls exception handling
o Async calls exception handling
o Listing files in folder
• Practice: Implement REST service (keeping data in files)

Using MongoDb with NodeJS
• What is MongoDb?
• What is Mongo Db good for?
• Impedance mismatch (object-oriented vs. relational)
• No impedance mismatch with MongoDb
• MongoDb vs. Relational database
o Inserting documents to MongoDb collection
o The problem: slow search in collections
o Solution: building indexes
• Finding documents in MongoDb
o Find: queries
o Find: projections
o Find: cursors
o How to implement paging
• Updating documents in MongoDb
o Update: replacing document
o Update: changing only part of the document with operators
• Using MongoDb with NodeJS
o Connecting to MongoDb from NodeJS server
o Reading data from MongoDb with Express
o Writing data to MongoDb with Express
o Deleting/updating data with Express
• Practice: Implement REST service (keeping data in MongoDb)

NodeJS advanced topics
• Node event loop and timers
o Set immediate
o Process nextTick
o Unref and clearInterval
o Node event loop in depth
o Timers
• Node event emitter
• Node streams
o File streams
o Readable and writable streams
o Creating big file with streams
o Creating writable stream and stream data processing
o Creating server with Stream API
o Stream types in Node.JS
o Stream events
o Transform streams
o Using pipes for data processing
o Demonstrations
• Streaming in Express
o Streaming in Express
o Streaming in Express based on Event Emitter
o Streaming in Express when sending big amounts of data
o Demonstrations
• Kafka
o Kafka architecture overview
o Kafka producer with Kafka.js
o Kafka consumer with Kafka.js
o Demonstrations
• WebSocket protocol
o What is WebSocket protocol?
o When is WebSocket protocol needed?
o WebSocket on the server-side with NodeJS
o WebSocket on the client side
o Demo application
• Node cluster deployment
o Node server without cluster support
o Node server with cluster support
o Node cluster module
o Node cluster with PM2
o Node server crash
o Automatic restart on server crash with PM2
o PM2 server monitoring
o Express cluster with shared sessions (with mem-cached)
o Collecting and analysing logs in cluster mode
o Benchmarks and stress tests of single vs. cluster NodeJS deployments
o Demonstrations";s:4:"TYPE";s:4:"HTML";}