これからのNode.jsの話をしよう

Transcript

1. 
   ͜Ε͔Βͷ/PEFKTͷ࿩ Λ͠Α͏ !ZPTVLF@GVSVLBXB
2. !ZPTVLF@GVSVLBXB ೔ຊ/PEFKTϢʔβʔάϧʔϓ৽୅ද
3. !ZPTVLF@GVSVLBXB $VSSFOU
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4. !ZPTVLF@GVSVLBXB $VSSFOU
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5. !ZPTVLF@GVSVLBXB $VSSFOU
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6. ຊ୊
7. ຊ୊ /PEFKT
   OFXT
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   /PEFKT
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   ౦ژ/PEFֶԂͷࠓޙ
8. /PEFKT
   OFXT
9. /PEFKT
   OFXT
   
10. /PEFKT
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11. 5+
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    KPJO $*΍UFTUϝΠϯʹ୲౰ 8BMNBSUͷϝϞϦϦʔΫΛൃݟ ͨ͠Γͱ௿ϨΠϠʔʹ΋ڧ͍
12. 5+
    'POUBJOF͸͜Μͳਓɹ ʹ
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    KPJO $*΍UFTUϝΠϯʹ୲౰ 8BMNBSUͷϝϞϦϦʔΫΛൃݟ ͨ͠Γͱ௿ϨΠϠʔʹ΋ڧ͍ ౦ژ/PEFֶԂࡇ
    ʹݺͼ͍ͨ
13. /PEFKT
    OFXT
    
14. /PEFKT
    OFXT
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    ΋͏͙͢Ͱ͢Ͷ
15. 
    WͰ৽͘͠ͳΔ͜ͱ 4USFBN
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16. 
    WͰ৽͘͠ͳΔ͜ͱ 4USFBN
    DMVTUFS
    SPVOE
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    JO
    WN
    TZOD
    DIJME@QSPDFTT
    USBDJOH
    BQJ
    QFSGPSNBODF
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    FUD ࢒೦ͳ͕ΒWͰ͸&4σϑΥϧτʹ͸ͳΒͳ͍
17. WͰ৽͘͠ͳΔ͜ͱ
    ٞ࿦ͷྲྀΕΛϒϩάʹ঺հͯ͠ΔͷͰ͕࣌ؒ͋Ε͹ݟ ͍ͯͩ͘͞ɻ
18. 
    WͰ৽͘͠ͳΔ͜ͱ 4USFBN
    DMVTUFS
    SPVOE
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    NVMUJQMF
    DPOUFYU
    JO
    WN
    TZOD
    DIJME@QSPDFTT
    USBDJOH
    BQJ
    QFSGPSNBODF
    JNQSPWFNFOU
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19. TZOD
    DIJME@QSPDFTT DIJME@QSPDFTTʹҎԼͷ"1*͕௥Ճ͞ΕΔɻ
    FYFD4ZOD
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    TQBXO4ZOD
20. TZOD
    DIJME@QSPDFTT DIJME@QSPDFTTʹҎԼͷ"1*͕௥Ճ͞ΕΔɻ
    FYFD4ZOD
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    TQBXO4ZOD HSVOUͱ͔ͷλεΫϥϯφʔͰ
    خ͍͠ػೳ
21. TZOD
    DIJME@QSPDFTT %&.0
22. USBDJOH
    "1* QSPpMJOH༻ͷ"1*
    IFBQ
    NFNPSZͷঢ়گΛϞχλͨ͠Γ
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23. USBDJOH
    "1* %&.0
24. Wͷશػೳ͸঺հ͠ ͖Εͳ͍
25. Wͷશػೳ͸঺հ͠ ͖Εͳ͍ 4USPOH-PPQ͕͔ͳΓ
    ঺հͯ͠ΔͷͰݟΑ͏ /PEFֶԂࡇʹ4USPOH-PPQͷਓ ݺΜͰ΋͍͍͔΋
26. ؾʹͳΔϥΠϒϥϦ
27. ؾʹͳΔϥΠϒϥϦ
28. ؾʹͳΔϥΠϒϥϦ
    8"'ฤ
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';! });
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
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;! });!
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
33. ৄ͘͠͸
34. ৄ͘͠͸ ๻ͷॻ͍ͨLPBೖ໳هࣄΛ͝ҰಡԼ͍͞ɻ
35. ؾʹͳΔϥΠϒϥϦ
    SFBMUJNFฤ
36. ؾʹͳΔϥΠϒϥϦ
    SFBMUJNFฤ 4PDLFU*0
    
    ͸
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37. 
    SFBMUJNF
    ϥΠϒϥϦ͸
    ࣮͸ͨ͘͞Μ͋Δ
38. 
    SFBMUJNF
    ϥΠϒϥϦ͸
    ࣮͸ͨ͘͞Μ͋Δ TPDLFUJP
    ʹ͚ͩ
    नΘΕΔඞཁͳ͍ɻ
39. Ͱ΋ͲΕ࢖͏ͷ
40. 1SJNVT
41. 1SJNVT ͦ͜Ͱɺ1SJNVTɻ
    USBOTGFS૚ͰFOHJOFJP
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    TPDLKT
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    XT͕
    ࢖͑Δɺͦͷ্ͰTPDLFUJPͰαϙʔτ͍ͯ͠ΔΑ͏ͳ
    SPPNͱ͔ͷΞϓϦέʔγϣϯ૚Λߏங͢Δ
    
42. 1SJNVT ͦ͜Ͱɺ1SJNVTɻ
    USBOTGFS૚ͰFOHJOFJP
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    SPPNͱ͔ͷΞϓϦέʔγϣϯ૚Λߏங͢Δ
    ೰ΜͰͳ͍Ͱ1SJNVT࢖͓͏ɺ ޙͰUSBOTGFS૚͸ม͑ΒΕΔɻ
43. ؾʹͳΔϥΠϒϥϦ
    ϑϩϯτΤϯυπʔϧฤ
44. ؾʹͳΔϥΠϒϥϦ
    ϑϩϯτΤϯυฤ ඦՖ៶ཚ͗ͯ͢ɺઆ໌͸ׂѪɻ
    
45. ؾʹͳΔϥΠϒϥϦ
    ϑϩϯτΤϯυπʔϧฤ ݸਓతʹ͸
    HVMQ
    CSPXTFSJGZ
    DPNQPOFOUJP
46. ͜ͷޙ
    CSPXTFSJGZͷ࿩ ͋Γ·͢ʂʂɹ
47. ౦ژ/PEFֶԂͷࠓޙ
48. جຊํ਑ ೋ݄ʹҰ౓͸/PEFֶԂΛ։࠵ͯ͠ɺΈΜͳͷ ஌ݟΛूΊ͍ͨ
    ೥ʹҰ౓ɺ౦ژ/PEFֶԂࡇ͸։࠵͍ͨ͠
    /PEFKTͷ࿩͹͔Γ͡Όͳͯ͘ผͳݴޠ͔Βֶ ΜͩΓɺ৽͍͠ࣄ͸ͲΜͲΜٵऩ͍ͨ͠
49. جຊํ਑ ೋ݄ʹҰ౓͸/PEFֶԂΛ։࠵ͯ͠ɺΈΜͳͷ ஌ݟΛूΊ͍ͨ
    ೥ʹҰ౓ɺ౦ژ/PEFֶԂࡇ͸։࠵͍ͨ͠
    /PEFKTͷ࿩͹͔Γ͡Όͳͯ͘ผͳݴޠ͔Βֶ ΜͩΓɺ৽͍͠ࣄ͸ͲΜͲΜٵऩ͍ͨ͠ ͭ·Γ͜Ε·Ͱ௨Γ
    /PEFֶԂΛ΍Γ͍ͨ
50. ม͍͑ͨ͜ͱ ΋ͬͱελοϑҎ֎͔Βͷਓͷҙݟ΋ฉ͖͍ͨɻ ΈΜͳ͕ͲΜͳͷʹڵຯ͕༗Δͷ͔ืू͍ͨ͠ɻ HJUUFSͱHJUIVCϦϙδτϦ࡞Γ·ͨ͠ɻ
 IUUQTHJUUFSJNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM
 IUUQTHJUIVCDPNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM
51. ม͍͑ͨ͜ͱ ΋ͬͱελοϑҎ֎͔Βͷਓͷҙݟ΋ฉ͖͍ͨɻ ΈΜͳ͕ͲΜͳͷʹڵຯ͕༗Δͷ͔ืू͍ͨ͠ɻ HJUUFSͱHJUIVCϦϙδτϦ࡞Γ·ͨ͠ɻ
 IUUQTHJUUFSJNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM
 IUUQTHJUIVCDPNZPTVLFGVSVLBXB5PLZP/PEF'FTUJWBM Θ͍Θ͍΍Γ͍ͨ
52. ·ͱΊ
53. ·ͱΊ /PEFKT
    OFXT
    Ϧʔμʔมߋ J[T
    
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    WͰมΘΔ͜ͱ
    ؾʹͳΔ
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    ϑϩϯτΤϯυπʔϧ͋Γա͗
    ౦ژ/PEFֶԂͷࠓޙ
    جຊ͸ม͑ͳ͍
    ҙݟΛऩू͠΍͘͢ɺ൓ө͠΍͘͢͢Δ
    Θ͍Θ͍Θʔ͍
54. ೋ୅໨ऻ໊൸࿐ޱ্
55. ͍ͭ·Ͱ΋มΘΒ͵NodeֶԂ΁ͷޚް৘ɺ͝᩾ርΛ ۱͔Β۱·Ͱ ͣͣͣʔ͍ͱ ޤ͍ئ͍ ͋͛ͨͯ·ͭΓ·͢Δʂʂʂ
56. ͍ͭ·Ͱ΋มΘΒ͵NodeֶԂ΁ͷޚް৘ɺ͝᩾ርΛ ۱͔Β۱·Ͱ ͣͣͣʔ͍ͱ ޤ͍ئ͍ ͋͛ͨͯ·ͭΓ·͢Δʂʂʂ ΑΖ͓͘͠ئ͍͠·͢