Node.js Web Application Survey 2016

Node学園 19時限目資料です。　

Transcript

1. Node.js Web App
   Frameworks 2016
   @yosuke_furukawa
   

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2. Twitter: @yosuke_furukawa
   Github: yosuke-furukawa
   

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3. Web Application
   Frameworks 2016
   

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4. Express
   

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5. Is Express dying?
   thread is opened…
   

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8. Don’t be afraid.
   

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

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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?!
    

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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.
    

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12. So, don’t be afraid.
    

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13. Koa
    

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14. Koa v2.0.0
    

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

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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
    })
    

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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!!
    

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

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

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

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21. Stay tunes…
    

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22. hapi
    

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23. hapi FAQ:
    

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

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25. hapi stands for
    HTTP API server
    

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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');
    });
    SPVUFSBTBDPEF
    

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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);
    });
    SPVUFSBTB
    DPOpHVSBUJPO
    

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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');
    });
    SFTSFOEFSJTVTFGVMGPS
    SFOEFSJOHIUNM
    

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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);
    });
    SFQMZDBOIBOEMF#V⒎FS 1SPNJTF
    4USFBN
    

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31. Hapi can handle multi-type
    request lifecycle
    • onRequest
    • onPreResponse
    • onPreAuth
    • onPostAuth
    • onPreHandler
    • onPostHandler
    

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32. hapi plugins
    • joi - testing library
    • shot - fake http req/res
    • vision - template rendering
    • chairo - micro services plugins
    • lab - test utilities
    

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33. nodal
    

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35. nodal is supernova.
    

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36. In other words,
    nodal is pretty young.
    

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37. nodal is rich WAF.
    

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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
    

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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));
    }
    }
    

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40. nodal future
    

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41. conclusions
    

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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.
    

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