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
   .Z
   803,4 4VQQPSU
   %FWFMPQFST $SFBUJOH
   (BNFT $SFBUJOH
   'SBNFXPSLT

4. !ZPTVLF@GVSVLBXB $VSSFOU
   NZ
   JOUFSFTUT 1FSGPSNBODF
   *NQSPWFNFOU 3FBMUJNF "OZ
   PUIFS
   OFX
   UFDIT
   MJLF
   (P
   %PDLFS
   $MJFOU
   TJEF
   .7$
   FUD

5. !ZPTVLF@GVSVLBXB $VSSFOU
   .Z
   GBWT 1FSGPSNBODF
   *NQSPWFNFOU 3FBMUJNF "OZ
   PUIFS
   OFX
   UFDIT
   MJLF
   (P
   %PDLFS
   $MJFOU
   TJEF
   .7$
   FUD 'PMMPX
   NF

6. ຊ୊

7. ຊ୊ /PEFKT
   OFXT
   ؾʹͳΔ
   /PEFKT
   ϥΠϒϥϦ
   ౦ژ/PEFֶԂͷࠓޙ

8. /PEFKT
   OFXT

9. /PEFKT
   OFXT
   

10. /PEFKT
    OFXT
     Ϧʔμʔ͕
    *[BBDT
    ͔Β
    5+
    'POUBJOF
    ʹ

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

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

13. /PEFKT
    OFXT
    

14. /PEFKT
    OFXT
     W
    ΋͏͙͢Ͱ͢Ͷ

15. 
    WͰ৽͘͠ͳΔ͜ͱ 4USFBN
    DMVTUFS
    SPVOE
    SPCJO
    NVMUJQMF
    DPOUFYU
    JO
    WN
    TZOD
    DIJME@QSPDFTT
    USBDJOH
    BQJ
    QFSGPSNBODF
    JNQSPWFNFOU
    FUD

16. 
    WͰ৽͘͠ͳΔ͜ͱ 4USFBN
    DMVTUFS
    SPVOE
    SPCJO
    NVMUJQMF
    DPOUFYU
    JO
    WN
    TZOD
    DIJME@QSPDFTT
    USBDJOH
    BQJ
    QFSGPSNBODF
    JNQSPWFNFOU
    FUD ࢒೦ͳ͕ΒWͰ͸&4σϑΥϧτʹ͸ͳΒͳ͍

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

18. 
    WͰ৽͘͠ͳΔ͜ͱ 4USFBN
    DMVTUFS
    SPVOE
    SPCJO
    NVMUJQMF
    DPOUFYU
    JO
    WN
    TZOD
    DIJME@QSPDFTT
    USBDJOH
    BQJ
    QFSGPSNBODF
    JNQSPWFNFOU
    FUD

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

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

21. TZOD
    DIJME@QSPDFTT %&.0

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

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
    
    ͸
    ৽͍͠
    1FSMͰ͋Δɻ
    

37. 
    SFBMUJNF
    ϥΠϒϥϦ͸
    ࣮͸ͨ͘͞Μ͋Δ

38. 
    SFBMUJNF
    ϥΠϒϥϦ͸
    ࣮͸ͨ͘͞Μ͋Δ TPDLFUJP
    ʹ͚ͩ
    नΘΕΔඞཁͳ͍ɻ

39. Ͱ΋ͲΕ࢖͏ͷ

40. 1SJNVT

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

42. 1SJNVT ͦ͜Ͱɺ1SJNVTɻ
    USBOTGFS૚ͰFOHJOFJP
    GBZF
    TPDLKT
    CSPXTFSDIBOOFM͕
    ࢖͑Δɺͦͷ্ͰTPDLFUJPͰαϙʔτ͍ͯ͠ΔΑ͏ͳ
    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
    
    5+
    'POUBJOF
    /PEFKT
    WͰมΘΔ͜ͱ
    ؾʹͳΔ
    /PEFKT
    ϥΠϒϥϦ
    ,PB
    1SJNVT
    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·͢