これからのNode.jsの話をしよう

Transcript

1. ͜Ε͔Βͷ/PEFKTͷ࿩
   Λ͠Α͏
   !ZPTVLF@GVSVLBXB
   

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2. !ZPTVLF@GVSVLBXB
   ೔ຊ/PEFKTϢʔβʔάϧʔϓ৽୅ද
   

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3. !ZPTVLF@GVSVLBXB
   $VSSFOU.Z803,4
   4VQQPSU%FWFMPQFST
   $SFBUJOH(BNFT
   $SFBUJOH'SBNFXPSLT
   

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4. !ZPTVLF@GVSVLBXB
   $VSSFOUNZJOUFSFTUT
   1FSGPSNBODF*NQSPWFNFOU
   3FBMUJNF
   "OZPUIFSOFXUFDIT
   MJLF(P %PDLFS $MJFOUTJEF.7$ FUD
   

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5. !ZPTVLF@GVSVLBXB
   $VSSFOU.ZGBWT
   1FSGPSNBODF*NQSPWFNFOU
   3FBMUJNF
   "OZPUIFSOFXUFDIT
   MJLF(P %PDLFS $MJFOUTJEF.7$ FUD
   'PMMPXNF
   

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6. ຊ୊
   

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7. ຊ୊
   /PEFKTOFXT
   ؾʹͳΔ/PEFKTϥΠϒϥϦ
   ౦ژ/PEFֶԂͷࠓޙ
   

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8. /PEFKTOFXT
   

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9. /PEFKTOFXT
   
   

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10. /PEFKTOFXT
    
    Ϧʔμʔ͕*[BBDT͔Β
    5+'POUBJOFʹ
    

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11. 5+'POUBJOF͸͜Μͳਓɹ
    ʹDPSFUFBNʹKPJO
    $*΍UFTUϝΠϯʹ୲౰
    8BMNBSUͷϝϞϦϦʔΫΛൃݟ
    ͨ͠Γͱ௿ϨΠϠʔʹ΋ڧ͍
    

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12. 5+'POUBJOF͸͜Μͳਓɹ
    ʹDPSFUFBNʹKPJO
    $*΍UFTUϝΠϯʹ୲౰
    8BMNBSUͷϝϞϦϦʔΫΛൃݟ
    ͨ͠Γͱ௿ϨΠϠʔʹ΋ڧ͍
    ౦ژ/PEFֶԂࡇ
    ʹݺͼ͍ͨ
    

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13. /PEFKTOFXT
    
    

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14. /PEFKTOFXT
    
    W΋͏͙͢Ͱ͢Ͷ
    

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15. WͰ৽͘͠ͳΔ͜ͱ
    4USFBN
    DMVTUFSSPVOESPCJO
    NVMUJQMFDPOUFYUJOWN
    TZODDIJME@QSPDFTT
    USBDJOHBQJ
    QFSGPSNBODFJNQSPWFNFOU FUD
    

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16. WͰ৽͘͠ͳΔ͜ͱ
    4USFBN
    DMVTUFSSPVOESPCJO
    NVMUJQMFDPOUFYUJOWN
    TZODDIJME@QSPDFTT
    USBDJOHBQJ
    QFSGPSNBODFJNQSPWFNFOU FUD
    ࢒೦ͳ͕ΒWͰ͸&4σϑΥϧτʹ͸ͳΒͳ͍
    

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17. WͰ৽͘͠ͳΔ͜ͱ
    ٞ࿦ͷྲྀΕΛϒϩάʹ঺հͯ͠ΔͷͰ͕࣌ؒ͋Ε͹ݟ
    ͍ͯͩ͘͞ɻ
    

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18. WͰ৽͘͠ͳΔ͜ͱ
    4USFBN
    DMVTUFSSPVOESPCJO
    NVMUJQMFDPOUFYUJOWN
    TZODDIJME@QSPDFTT
    USBDJOHBQJ
    QFSGPSNBODFJNQSPWFNFOU FUD
    

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19. TZODDIJME@QSPDFTT
    DIJME@QSPDFTTʹҎԼͷ"1*͕௥Ճ͞ΕΔɻ
    FYFD4ZOD
    FYFD'JMF4ZOD
    TQBXO4ZOD
    

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20. TZODDIJME@QSPDFTT
    DIJME@QSPDFTTʹҎԼͷ"1*͕௥Ճ͞ΕΔɻ
    FYFD4ZOD
    FYFD'JMF4ZOD
    TQBXO4ZOD HSVOUͱ͔ͷλεΫϥϯφʔͰ
    خ͍͠ػೳ
    

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21. TZODDIJME@QSPDFTT
    %&.0
    

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22. USBDJOH"1*
    QSPpMJOH༻ͷ"1*
    IFBQNFNPSZͷঢ়گΛϞχλͨ͠Γ
    UJDLຖʹVTFSͷ೚ҙͷΦϒδΣΫτΛUSBDFͰ͖
    Δ
    

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23. USBDJOH"1*
    %&.0
    

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24. Wͷશػೳ͸঺հ͠
    ͖Εͳ͍
    

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25. Wͷશػೳ͸঺հ͠
    ͖Εͳ͍
    4USPOH-PPQ͕͔ͳΓ
    ঺հͯ͠ΔͷͰݟΑ͏
    /PEFֶԂࡇʹ4USPOH-PPQͷਓ
    ݺΜͰ΋͍͍͔΋
    

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26. ؾʹͳΔϥΠϒϥϦ
    

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27. ؾʹͳΔϥΠϒϥϦ
    

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28. ؾʹͳΔϥΠϒϥϦ
    8"'ฤ
    
    

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29. ؾʹͳΔϥΠϒϥϦ
    8"'ฤ
    
    // Express!
    !
    // response time!
    !
    app.use(function(req, res, next){!
    var start = new Date;!
    res.on('header', function(){!
    var ms = new Date - start;!
    res.setHeader('X-Response-Time', ms +
    'ms');!
    });!
    next();!
    }); !
    !
    // response!
    !
    app.use(function(req, res, next){!
    res.send(200, "Hello World");!
    });
    // koa!
    !
    // response time!
    !
    app.use(function *(next){!
    var start = new Date;!
    yield next;!
    var ms = new Date - start;!
    this.set('X-Response-Time', ms + 'ms');!
    });!
    !
    // response!
    !
    app.use(function *(){!
    this.body = 'Hello World';!
    });
    

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30. ؾʹͳΔϥΠϒϥϦ
    8"'ฤ
    
    // Express!
    !
    // response time!
    !
    app.use(function(req, res, next){!
    var start = new Date;!
    res.on('header', function(){!
    var ms = new Date - start;!
    res.setHeader('X-Response-Time', ms +
    'ms');!
    });!
    next();!
    }); !
    !
    // response!
    !
    app.use(function(req, res, next){!
    res.send(200, "Hello World");!
    });
    // koa!
    !
    // response time!
    !
    app.use(function *(next){!
    var start = new Date;!
    yield next;!
    var ms = new Date - start;!
    this.set('X-Response-Time', ms + 'ms');!
    });!
    !
    // response!
    !
    app.use(function *(){!
    this.body = 'Hello World';!
    });
    HFOFSBUPSZJFME
    Ͱͷະདྷ
    

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31. ؾʹͳΔϥΠϒϥϦ
    8"'ฤ
    
    // handle error!
    app.use(function *(next) {!
    // try-catchͰΤϥʔϋϯυϦϯάͰ͖Δ!
    try {!
    yield next;!
    } catch (err) {!
    this.status = 500;!
    this.body = err.message;!
    }!
    });!
    !
    // error thrower!
    app.use(function *(next) {!
    if (this.url === "/_err") {!
    throw new Error("Send Error");!
    }!
    yield next;!
    });!
    

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32. ؾʹͳΔϥΠϒϥϦ
    8"'ฤ
    
    // handle error!
    app.use(function *(next) {!
    // try-catchͰΤϥʔϋϯυϦϯάͰ͖Δ!
    try {!
    yield next;!
    } catch (err) {!
    this.status = 500;!
    this.body = err.message;!
    // errorΠϕϯτΛൃߦ!
    this.app.emit("error", err, this);!
    }!
    });!
    !
    // error thrower!
    app.use(function *(next) {!
    if (this.url === "/_err") {!
    throw new Error("Send Error");!
    }!
    yield next;!
    });!
    ΤϥʔϋϯυϦϯά௚ײత
    

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33. ৄ͘͠͸
    

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34. ৄ͘͠͸
    ๻ͷॻ͍ͨLPBೖ໳هࣄΛ͝ҰಡԼ͍͞ɻ
    

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35. ؾʹͳΔϥΠϒϥϦ
    SFBMUJNFฤ
    
    

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36. ؾʹͳΔϥΠϒϥϦ
    SFBMUJNFฤ
    
    4PDLFU*0
    ͸৽͍͠1FSMͰ͋Δɻ
    

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37. SFBMUJNFϥΠϒϥϦ͸
    ࣮͸ͨ͘͞Μ͋Δ
    

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38. SFBMUJNFϥΠϒϥϦ͸
    ࣮͸ͨ͘͞Μ͋Δ
    TPDLFUJPʹ͚ͩ
    नΘΕΔඞཁͳ͍ɻ
    

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39. Ͱ΋ͲΕ࢖͏ͷ
    

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40. 1SJNVT
    

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41. 1SJNVT
    ͦ͜Ͱɺ1SJNVTɻ
    USBOTGFS૚ͰFOHJOFJP GBZF TPDLKT CSPXTFSDIBOOFM XT͕
    ࢖͑Δɺͦͷ্ͰTPDLFUJPͰαϙʔτ͍ͯ͠ΔΑ͏ͳ
    SPPNͱ͔ͷΞϓϦέʔγϣϯ૚Λߏங͢Δ
    

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42. 1SJNVT
    ͦ͜Ͱɺ1SJNVTɻ
    USBOTGFS૚ͰFOHJOFJP GBZF TPDLKT CSPXTFSDIBOOFM͕
    ࢖͑Δɺͦͷ্ͰTPDLFUJPͰαϙʔτ͍ͯ͠ΔΑ͏ͳ
    SPPNͱ͔ͷΞϓϦέʔγϣϯ૚Λߏங͢Δ
    ೰ΜͰͳ͍Ͱ1SJNVT࢖͓͏ɺ
    ޙͰUSBOTGFS૚͸ม͑ΒΕΔɻ
    

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43. ؾʹͳΔϥΠϒϥϦ
    ϑϩϯτΤϯυπʔϧฤ
    
    

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44. ؾʹͳΔϥΠϒϥϦ
    ϑϩϯτΤϯυฤ
    
    ඦՖ៶ཚ͗ͯ͢ɺઆ໌͸ׂѪɻ
    

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45. ؾʹͳΔϥΠϒϥϦ
    ϑϩϯτΤϯυπʔϧฤ
    
    ݸਓతʹ͸HVMQ CSPXTFSJGZ DPNQPOFOUJP
    

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46. ͜ͷޙCSPXTFSJGZͷ࿩
    ͋Γ·͢ʂʂɹ
    

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47. ౦ژ/PEFֶԂͷࠓޙ
    

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48. جຊํ਑
    ೋ݄ʹҰ౓͸/PEFֶԂΛ։࠵ͯ͠ɺΈΜͳͷ
    ஌ݟΛूΊ͍ͨ
    ೥ʹҰ౓ɺ౦ژ/PEFֶԂࡇ͸։࠵͍ͨ͠
    /PEFKTͷ࿩͹͔Γ͡Όͳͯ͘ผͳݴޠ͔Βֶ
    ΜͩΓɺ৽͍͠ࣄ͸ͲΜͲΜٵऩ͍ͨ͠
    

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49. جຊํ਑
    ೋ݄ʹҰ౓͸/PEFֶԂΛ։࠵ͯ͠ɺΈΜͳͷ
    ஌ݟΛूΊ͍ͨ
    ೥ʹҰ౓ɺ౦ژ/PEFֶԂࡇ͸։࠵͍ͨ͠
    /PEFKTͷ࿩͹͔Γ͡Όͳͯ͘ผͳݴޠ͔Βֶ
    ΜͩΓɺ৽͍͠ࣄ͸ͲΜͲΜٵऩ͍ͨ͠
    ͭ·Γ͜Ε·Ͱ௨Γ
    /PEFֶԂΛ΍Γ͍ͨ
    

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50. ม͍͑ͨ͜ͱ
    ΋ͬͱελοϑҎ֎͔Βͷਓͷҙݟ΋ฉ͖͍ͨɻ
    ΈΜͳ͕ͲΜͳͷʹڵຯ͕༗Δͷ͔ืू͍ͨ͠ɻ
    HJUUFSͱHJUIVCϦϙδτϦ࡞Γ·ͨ͠ɻ

    IUUQTHJUUFSJNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM

    IUUQTHJUIVCDPNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM
    

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51. ม͍͑ͨ͜ͱ
    ΋ͬͱελοϑҎ֎͔Βͷਓͷҙݟ΋ฉ͖͍ͨɻ
    ΈΜͳ͕ͲΜͳͷʹڵຯ͕༗Δͷ͔ืू͍ͨ͠ɻ
    HJUUFSͱHJUIVCϦϙδτϦ࡞Γ·ͨ͠ɻ

    IUUQTHJUUFSJNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM

    IUUQTHJUIVCDPNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM
    Θ͍Θ͍΍Γ͍ͨ
    

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52. ·ͱΊ
    

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53. ·ͱΊ
    /PEFKTOFXT
    Ϧʔμʔมߋ J[T5+'POUBJOF
    
    /PEFKTWͰมΘΔ͜ͱ
    ؾʹͳΔ/PEFKTϥΠϒϥϦ
    ,PB
    1SJNVT
    ϑϩϯτΤϯυπʔϧ͋Γա͗
    ౦ژ/PEFֶԂͷࠓޙ
    جຊ͸ม͑ͳ͍
    ҙݟΛऩू͠΍͘͢ɺ൓ө͠΍͘͢͢Δ
    Θ͍Θ͍Θʔ͍
    

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54. ೋ୅໨ऻ໊൸࿐ޱ্
    

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55. ͍ͭ·Ͱ΋มΘΒ͵NodeֶԂ΁ͷޚް৘ɺ͝᩾ርΛ
    ۱͔Β۱·Ͱ ͣͣͣʔ͍ͱ
    ޤ͍ئ͍ ͋͛ͨͯ·ͭΓ·͢Δʂʂʂ
    

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56. ͍ͭ·Ͱ΋มΘΒ͵NodeֶԂ΁ͷޚް৘ɺ͝᩾ርΛ
    ۱͔Β۱·Ͱ ͣͣͣʔ͍ͱ
    ޤ͍ئ͍ ͋͛ͨͯ·ͭΓ·͢Δʂʂʂ
    ΑΖ͓͘͠ئ͍͠·͢
    
    

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