Node.js Web Application Survey 2016

Transcript

1. Node.js Web App Frameworks 2016 @yosuke_furukawa

2. Twitter: @yosuke_furukawa Github: yosuke-furukawa

3. Web Application Frameworks 2016

4. Express

5. Is Express dying? thread is opened…

6. None
7. None

8. Don’t be afraid.

9. Express will be OK. That thread is FUD.

10. Discussion point • IBM is not OSS company. • Doug

    Willson will stay express project permanently? • Express release schedule is not clear… • when express v5 is released?!

11. Discussion point • IBM is not OSS company.
 → Node

    Foundation will incubate Express and those libraries. • Doug Willson will stay express project permanently?
 → Express WG is established. • Express release schedule is not clear…
 → DougWillson will move forward to the schedule.

12. So, don’t be afraid.

13. Koa

14. Koa v2.0.0

15. All files are translated from ES.next to ES5

16. Koa v2.0.0 // Koa application is now a class and

    requires the new operator. const app = new Koa() // uses async arrow functions app.use(async (ctx, next) => { try { await next() // next is now a function } catch (err) { ctx.body = { message: err.message } ctx.status = err.status || 500 } }) app.use(async ctx => { const user = await User.getById(ctx.session.userid) // await instead of yield ctx.body = user // ctx instead of this })

17. Koa v2.0.0 // Koa application is now a class and

    requires the new operator. const app = new Koa() // uses async arrow functions app.use(async (ctx, next) => { try { await next() // next is now a function } catch (err) { ctx.body = { message: err.message } ctx.status = err.status || 500 } }) app.use(async ctx => { const user = await User.getById(ctx.session.userid) // await instead of yield ctx.body = user // ctx instead of this }) Yes!!! you can use async/await on Koa v2!!

18. Should we use Koa v2.0 instead of Koa v1.0 ???

19. Not now. please wait. currently Koa v2.0 is alpha.

20. Koa v2 will have breaking changes from Koa v1.

21. Stay tunes…

22. hapi

23. hapi FAQ:

24. What is hapi? What difference from Express???

25. hapi stands for HTTP API server

26. None

27. Express const express = require('express'); const app = express(); app.get('/hello',

    (req, res) => { res.send('hello world'); }); app.listen(‘3000’, (err) => { if (err) { throw err; } console.log('Server running at: 3000'); }); SPVUFS
    BT
    B
    DPEF

28. hapi const Hapi = require('hapi'); const server = new Hapi.Server();

    server.connection({ host: 'localhost', port: 8000 }); server.route({ method: 'GET', path:'/hello', handler: (request, reply) => { return reply('hello world'); } }); server.start((err) => { if (err) { throw err; } console.log('Server running at:', server.info.uri); }); SPVUFS
    BT
    B
    DPOpHVSBUJPO

29. Express const express = require('express'); const app = express(); app.get('/hello',

    (req, res) => { app.render(‘view’, {name: ‘Tobi’}); }); app.listen(‘3000’, (err) => { if (err) { throw err; } console.log('Server running at: 3000'); }); SFTSFOEFS
    JT
    VTFGVM
    GPS
    SFOEFSJOH
    IUNM

30. hapi does not have res.render const Hapi = require('hapi'); const

    server = new Hapi.Server(); server.connection({ host: 'localhost', port: 8000 }); server.route({ method: 'GET', path:'/hello', handler: (request, reply) => { return reply('hello world'); } }); server.start((err) => { if (err) { throw err; } console.log('Server running at:', server.info.uri); }); SFQMZ
    DBO
    IBOEMF
    #V⒎FS
    1SPNJTF
    4USFBN

31. Hapi can handle multi-type request lifecycle • onRequest • onPreResponse

    • onPreAuth • onPostAuth • onPreHandler • onPostHandler

32. hapi plugins • joi - testing library • shot -

    fake http req/res • vision - template rendering • chairo - micro services plugins • lab - test utilities

33. nodal

34. None

35. nodal is supernova.

36. In other words, nodal is pretty young.

37. nodal is rich WAF.

38. nodal • Full staaaaaaaaaaaaaack • PostgreSQL supports (only!!) • Nodal

    can select server types • Branding Server (SEO-indexable) • API Server (just JSON) • Application Server (SinglePageApps, asset compilation) • nodal-angular

39. nodal class BlogPostsController extends Nodal.Controller { index() { BlogPost.query() .join('user')

    .join('comments') .where(this.params.query) .end((err, blogPosts) => { this.respond(err || blogPosts); }); } show() { BlogPost.find(this.params.route.id, (err, blogPost) => this.respond(err || blogPost)); } }

40. nodal future

41. conclusions

42. Node.js Web Application Frameworks 2016 • If you are express

    user, you don’t be afraid to continue to use express! • If you are koa v1.0 user or async/await lover, you would be better to be ready to upgrade koa v2.0. • If you would like to create microsevices nodes and getting tired of using express, you need to know more about hapi. • If you would like to know more new application frameworks, you should use nodal.