Academy PRO: Node.js platform. Lecture 1

Jun 20, 2017Download as PPTX, PDF1 like130 views

Lecture for Binary Studio Academy PRO course about Node.js by Nikita Semenistiy (TechLead & JS developer at Binary Studio)

Lectures plan
1. Node.js Platform
2. Web applications - Default stack
3. Web applications - Alternative stacks
4. Node.js in Production

Origins
Ryan Dahl - 2009
Joyent
io.js
Nodejs foundation - TSC and various members on board

Why JS?
- Open and popular platform
- Event loop
- V8

Use cases
Web applications
Desktop applications
Console applications
IoT applications

Why?
Vibrant community
Cheap performance
One web language
Super-easy to develop

nvm
https://github.com/creationix/nvm
nvm install node
nvm use node
npm install 6
npm install 4.2.1

ES2015/16
http://node.green/

fs.readFile setTimeout
Event Loop
[sync
execution
scope]

microtasks
https://jakearchibald.com/2015/tasks-microtasks-queues-and-schedules/
setImmediate()
process.nextTick(()=>{})
Promise

fs
fs.chmod(path, mode, callback)
fs.chmodSync(path, mode)
fs.exists(path, callback)
fs.existsSync(path)
fs.mkdir(path[, mode], callback)
fs.mkdirSync(path[, mode])
fs.readdir(path[, options], callback)
fs.readdirSync(path[, options])
fs.readFile(file[, options], callback)
fs.readFileSync(file[, options])
fs.writeFile(file, data[, options], callback)
fs.writeFileSync(file, data[, options])

Fs modules
A `rm -rf` util for nodejs
https://github.com/isaacs/rimraf
fs with incremental backoff on EMFILE
https://github.com/isaacs/node-graceful-fs

http
Class: http.Agent
Class: http.ClientRequest
Class: http.Server
Class: http.ServerResponse
Class: http.IncomingMessage
http.createClient([port][, host])
http.createServer([requestListener])
http.get(options[, callback])
http.request(options[, callback])

Buffer
Buffer.alloc(size[, fill[, encoding]])
Buffer.allocUnsafe(size)
Buffer.allocUnsafeSlow(size)
Buffer.byteLength(string[, encoding])
Buffer.compare(buf1, buf2)
Buffer.concat(list[, totalLength])
Buffer.from(array)
Buffer.from(buffer)
Buffer.from(string[, encoding])
Buffer.isBuffer(obj)
Buffer.isEncoding(encoding)

Streams
Readable
Writable
Duplex
Transform

Error handling
Error-first callback
Process events

npm init
npm install express
npm i express
npm install --save express
npm install --save-dev express
npm uninstall --save express
npm i -g pm2
npm

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1. Academy PRO Node.js Platform

2. Lectures plan 1. Node.js Platform 2. Web applications - Default stack 3. Web applications - Alternative stacks 4. Node.js in Production

3. Origins Ryan Dahl - 2009 Joyent io.js Nodejs foundation - TSC and various members on board

4. Why JS? - Open and popular platform - Event loop - V8

5. Use cases Web applications Desktop applications Console applications IoT applications

6. Happy users

7. Why? Vibrant community Cheap performance One web language Super-easy to develop

8. Versions

9. nvm https://github.com/creationix/nvm nvm install node nvm use node npm install 6 npm install 4.2.1

10. Node.js anatomy

11. ES2015/16 http://node.green/

12. fs.readFile setTimeout Event Loop [sync execution scope]

13. microtasks https://jakearchibald.com/2015/tasks-microtasks-queues-and-schedules/ setImmediate() process.nextTick(()=>{}) Promise

14. microtasks

15. Nodejs vs Traditional Server

16. Modules - CommonJS

17. Modules - CommonJS

18. fs fs.chmod(path, mode, callback) fs.chmodSync(path, mode) fs.exists(path, callback) fs.existsSync(path) fs.mkdir(path[, mode], callback) fs.mkdirSync(path[, mode]) fs.readdir(path[, options], callback) fs.readdirSync(path[, options]) fs.readFile(file[, options], callback) fs.readFileSync(file[, options]) fs.writeFile(file, data[, options], callback) fs.writeFileSync(file, data[, options])

19. Fs modules A `rm -rf` util for nodejs https://github.com/isaacs/rimraf fs with incremental backoff on EMFILE https://github.com/isaacs/node-graceful-fs

20. http Class: http.Agent Class: http.ClientRequest Class: http.Server Class: http.ServerResponse Class: http.IncomingMessage http.createClient([port][, host]) http.createServer([requestListener]) http.get(options[, callback]) http.request(options[, callback])

21. Buffer Buffer.alloc(size[, fill[, encoding]]) Buffer.allocUnsafe(size) Buffer.allocUnsafeSlow(size) Buffer.byteLength(string[, encoding]) Buffer.compare(buf1, buf2) Buffer.concat(list[, totalLength]) Buffer.from(array) Buffer.from(buffer) Buffer.from(string[, encoding]) Buffer.isBuffer(obj) Buffer.isEncoding(encoding)

22. Streams Readable Writable Duplex Transform

23. child_process

24. Async handling - Callbacks

25. Async

26. Async

27. Promises

28. Promises

29. Generators Output -> <- Input

30. Generators - Coroutines

31. Async await

32. Error handling Error-first callback Process events

33. npm init npm install express npm i express npm install --save express npm install --save-dev express npm uninstall --save express npm i -g pm2 npm

34. npm package.json

35. npm

36. V2 vs V3

37. V2 vs V3

38. Native modules

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