避けられないI/O待ちに対処する: Rails アプリにおけるSSEとasync gemの活用 / Tackling Inevitable I/O Latency in Rails Apps with SSE and the async gem

Kaigi on Rails 2025の発表資料です #kaigionrails
補足はこちら: https://moznion.hatenadiary.com/entry/2025/09/29/142534

Transcript

1. ආ͚ΒΕͳ͍I/O଴ͪʹରॲ͢Δ: Rails ΞϓϦʹ͓͚ΔSSEͱasync gemͷ׆༻ Tackling Inevitable I/O Latency in Rails Apps with SSE and the async gem
2.  !NP[OJPO !NP[OJPO 4NBSU#BOL
   *OD
   
   4PGUXBSF
   &OHJOFFS 5BJLJ
   ,BXBLBNJ
   !NP[OJPO
3. X
4. 44&
   TFSWFSTFOU
   FWFOUT 
5.  44&ͱ͸ Ұ౓ΫϥΠΞϯταʔόʔؒͰ )551ͷ44&ίωΫγϣϯΛுΔͱɺ
   αʔόʔ͔ΒΫϥΠΞϯτʹରͯ͠ ܧଓతʹσʔλΛૹग़Ͱ͖Δ࢓૊Έ
   ͬ͘͟Γݴ͏ͱ ఻౷తʹ͸ɺ΢Σϒϖʔδ͕৽ͨͳσʔλΛड͚औΔͨΊʹɺ αʔόʔʹϦΫΤετΛૹ৴͠ͳ͚Ε͹ͳΓ·ͤΜɻ͢ͳΘͪɺ ϖʔδ͕αʔόʔ͔ΒσʔλΛཁٻ͠·͢ɻαʔόʔૹ৴Πϕϯ τʹΑͬͯɺαʔόʔ͕΢ΣϒϖʔδʹϝοηʔδΛϓογϡૹ ৴͢Δ͜ͱʹΑΓɺαʔόʔ͔Β΢Σϒϖʔδ΁৽ͨͳσʔλΛ ͍ͭͰ΋ૹ৴͢Δ͜ͱ͕Ͱ͖·͢ɻ
   IUUQTEFWFMPQFSNP[JMMBPSHKBEPDT8FC"1*4FSWFS TFOU@FWFOUT z ௨ৗͷ)551 44&
6.  ͲͷΑ͏ͳঢ়گͰ44&͸༗ޮ͔ ‣χϡʔεͷΞοϓσʔτ
   ଎ใ
   ‣ϩάͷετϦʔϛϯάදࣔ
   ‣ϝοηʔδϯάɾνϟοτ
   ‣,P3ͷαϒεΫϦʔϯ
   ̈
   ‣௕͔͔࣌ؒΔॲཧͷʜ
   ‣ਐḿදࣔ
   ‣׬ྃ௨஌ ྫ ˢ$IBU(15΋44&Ͱಈ࡞͍ͯ͠Δͱ͍͏ྫ ̈
   IUUQTHJUIVCDPNLBJHJPOSBJMTTIJSBUBLJ
7.  ͲͷΑ͏ͳঢ়گͰ44&͸༗ޮ͔ ྫ ˢ$IBU(15΋44&Ͱಈ࡞͍ͯ͠Δͱ͍͏ྫ ‣χϡʔεͷΞοϓσʔτ
   ଎ใ
   ‣ϩάͷετϦʔϛϯάදࣔ
   ‣ϝοηʔδϯάɾνϟοτ
   ‣,P3ͷαϒεΫϦʔϯ
   ̈
   ‣௕͔͔࣌ؒΔॲཧͷʜ
   ‣ਐḿදࣔ
   ‣׬ྃ௨஌ ̈
   IUUQTHJUIVCDPNLBJHJPOSBJMTTIJSBUBLJ
8.  44&
   ˰
   Ϣʔβʔମݧ޲্ࢪࡦͷҰछ
9.  Ϣʔβʔମݧ޲্ࢪࡦͷҰछ ࡢࠓͷΞϓϦͩͱΑ͋͘Δ
   ‣"1*31$ݺͼग़͠
   ‣"*
   --.
   ਪ࿦
   ӈਤ͸ϫϯόϯΫΞϓϦͷʮ"*εΫγϣಡΈऔΓػೳʯ ྫ
   ௕͍଴ͪ࣌ؒ
   FH
   *0
   XBJU
   ͕ൃੜ͢Δॲཧͷਐḿ εΫγϣը૾Λ0$3ͯ͠--.͕৘ใநग़͢Δػೳ
10.  Ϣʔβʔମݧ޲্ࢪࡦͷҰछ ࡢࠓͷΞϓϦͩͱΑ͋͘Δ
    ‣"1*31$ݺͼग़͠
    ‣"*
    --.
    ਪ࿦
    ӈਤ͸ϫϯόϯΫΞϓϦͷʮ"*εΫγϣಡΈऔΓػೳʯ ྫ
    ௕͍଴ͪ࣌ؒ
    FH
    *0
    XBJU
    ͕ൃੜ͢Δॲཧͷਐḿ εΫγϣը૾Λ0$3ͯ͠--.͕৘ใநग़͢Δػೳ ͜͜ʹ͕͔͔࣌ؒΔ
11.  Ϣʔβʔମݧ޲্ࢪࡦͷҰछ ࡢࠓͷΞϓϦͩͱΑ͋͘Δ
    ‣"1*31$ݺͼग़͠
    ‣"*
    --.
    ਪ࿦
    ӈਤ͸ϫϯόϯΫΞϓϦͷʮ"*εΫγϣಡΈऔΓػೳʯ ྫ
    ௕͍଴ͪ࣌ؒ
    FH
    *0
    XBJU
    ͕ൃੜ͢Δॲཧͷਐḿ εΫγϣը૾Λ0$3ͯ͠--.͕৘ใநग़͢Δػೳ ͜ͷҰ࿈ͷॲཧΛ44&ʹͯ͠ਐḿΛදࣔ͢Δ
12.  Ϣʔβʔମݧ޲্ࢪࡦͷҰछ ‣͜ͷΑ͏ͳʮ଴ͪʯʹؔ͢Δ࠷దԽͷ༨஍͸ݶఆ͞Ε͍ͯΔ
    ‣ʮݺग़ઌʯͷੑೳΛྑ͘͢Δ͜ͱ͸ࠔ೉ͳ৔߹͕ଟ͍
    ‣͔͠͠Ϣʔβʔମݧ͸ྑ͍ͨ͘͠
    ‣44&͸ͦͷͨΊͷબ୒ࢶͷͻͱͭʹͳΓ͑Δ ྫ
    ௕͍଴ͪ࣌ؒ
    FH
    *0
    XBJU
    ͕ൃੜ͢Δॲཧͷਐḿ
13. 3BJMTͰ44&
    3FTQPOTFΛฦ٫͢Δʹ͸ʁ 
14.  3BJMTͰ44&
    3FTQPOTFΛฦ٫͢Δํ๏ ग़ల
    IUUQTBQJSVCZPOSBJMTPSHDMBTTFT"DUJPO$POUSPMMFS-JWF44&IUNM &YBNQMF
15. ؆୯Ͱ͢Ͷ
17.  എޙͰ͸ͲͷΑ͏ͳ͜ͱ͕ى͍ͬͯ͜Δͷ͔
18.  44&࢓༷͜ͱ͸͡Ί ҎԼ͕ඪ४࢓༷👇
    IUUQTIUNMTQFDXIBUXHPSHNVMUJQBHFTFSWFSTFOUFWFOUTIUNM
19.  44&࢓༷͜ͱ͸͡Ί ‣جຊతʹ)551
    Λϕʔεͱͨ͠
    zϝοηʔδϯάϑΥʔϚοτz
    ‣8FC4PDLFUͱൺֱͯ͠γϯϓϧͳ࢓૊Έʹͳ͍ͬͯΔ
    ‣8FC4PDLFUʹΑΔ΋Ζ΋Ζͷ՝୊͕)551
    Λϕʔεʹ͢Δ͜ͱͰ ղܾ͞Ε͍ͯΔ
    ‣Ұํ44&͸αʔόʔ͔Βσʔλ͕Ұํతʹϓογϡ͞Εͯ͘Δ࢓૊Έ
    8FC4PDLFUͷΑ͏ͳίωΫγϣϯͰͷ૒ํ޲ੑ͸ແ͍
20.  44&ϓϩτίϧ͜ͱ͸͡Ί
21.  44&઀ଓཱ֬ϑΣΠζ
22.  44&઀ଓཱ֬ϑΣΠζ ‣$MJFOU
    44&ͷΤϯυϙΠϯτ΁)551
    ϦΫΤετ͢Δ
    ‣$MJFOUϥΠϒϥϦ͸಺෦తʹ44&઀ଓ
    ͷεςʔτ؅ཧΛߦ͏
    ‣4FSWFS
    ௨ৗͷϨεϙϯεͱͯ͠
    AUFYUFWFOUTUSFBNAΛฦ٫ͯ͠
    44&઀ଓΛཱ֬ < HTTP/1.1 200 OK < cache-control : no-store < content-type : text/event- stream < x-accel-buffering : no < Transfer-Encoding : chunked
23.  ΠϕϯτετϦʔϜॲཧ
24.  ΠϕϯτετϦʔϜॲཧ ‣ετϦʔϜͷจࣈྻ͸65'
    ‣ߦࢦ޲ͷϝοηʔδϑΥʔϚοτ
    ‣ۭߦ۠੾Γ
    AaOA
    PS
    AaSaOA data : first event id : 1 data : second event id data : third event &YBNQMF
25.  ΠϕϯτετϦʔϜॲཧ ߦͷछผ͸ҎԼͷ௨Γ
    
    
    
    ߦ͕ۭന
    ۭനߦ
    ‣σϦϛλͱͯ͠ѻ͍ɺΠϕϯτΛॲཧ͢Δ
    
    
    
    ߦ͕ίϩϯ͔Β࢝·͍ͬͯΔ
    ‣ແࢹ͞ΕΔ
    ϋʔτϏʔτʹศར
    
    
    
    ߦʹίϩϯؚ͕·Ε͍ͯΔ৔߹
    ‣ίϩϯʹΑΔ,FZ
    'JFME
    ͱ7BMVFͱͯ͠ ѻ͏
    ޙड़
    
    
    
    ͦΕҎ֎
    ‣ߦશମΛ'JFMEͱۭͯ͠จࣈΛ7BMVFͱ͠ ͯѻ͏
26.  ΠϕϯτετϦʔϜॲཧ ‣ڐՄ͞ΕΔ'JFME͸ҎԼ
    ଞ͸ແࢹ͞ΕΔ
    ‣FWFOU
    ೚ҙͷΠϕϯτλΠϓ
    ‣EBUB
    ೚ҙͷσʔλ
    ‣JE
    Ұҙͳ*%
    ‣A-BTU&WFOU*%AͰ࠶઀ଓ࣌ͷ
    ࠶։ϙΠϯτͱͯ͠࢖ΘΕΔ
    ‣SFUSZ
    ࠶઀ଓ࣌ؒ
    ϛϦඵ
    ͦͷଞͷࡉ͔ͳϧʔϧ͸࢓༷Λࢀর͞Ε͍ͨ
27.  ΠϕϯτετϦʔϜॲཧ ྫ : test stream data : first event id : 1 data : second event id data : third event ίϩϯ͔Β͸͡·Δϝοηʔδ͸ແࢹ͞ΕΔ
    ͜ͷϒϩοΫͰ͸Կ΋ൃੜ͠ͳ͍
28.  ΠϕϯτετϦʔϜॲཧ ྫ : test stream data : first event id : 1 data : second event id data : third event EBUB͕ fi STU
    FWFOU
    JE͕
    ͱͯ͠ϒϩοΫ͕ॲཧ͞ΕΔ
29.  ΠϕϯτετϦʔϜॲཧ ྫ : test stream data : first event id : 1 data : second event id data : third event EBUB͕TFDPOE
    FWFOU
    JE͕ۭจࣈྻ
    VOTFU
    ͱͯ͠ϒϩοΫ͕ॲཧ͞ΕΔ
30.  ΠϕϯτετϦʔϜॲཧ ྫ : test stream data : first event id : 1 data : second event id data : third event EBUB͕UIJSE
    FWFOU
    ͱͯ͠ΠϕϯτϒϩοΫ͕ॲཧ͞ΕΔ
    ۭߦͰऴ୺͞Ε͍ͯͳ͍ͱΠϕϯτ͕ൃՐ͠ͳ͍
31.  ΠϕϯτετϦʔϜॲཧ ‣ΫϥΠΞϯτ͸ۭߦΛσϦϛλͱͨ͠
    ΠϕϯτϒϩοΫΛͭͷ୯Ґͱͯ͠
    ॲཧ͢Δ
    ‣EBUB͕ෳ਺͋Δ৔߹͸վߦ
    AaOA
    Ͱ
    ࿈݁͞Εͯ౉͞ΕΔ data : uno data : dos data : tres
32.  ΠϕϯτετϦʔϜॲཧ ‣ΫϥΠΞϯτ͸ۭߦΛσϦϛλͱͨ͠
    ΠϕϯτϒϩοΫΛͭͷ୯Ґͱͯ͠
    ॲཧ͢Δ
    ‣EBUB͕ෳ਺͋Δ৔߹͸վߦ
    AaOA
    Ͱ
    ࿈݁͞Εͯ౉͞ΕΔ data : uno data : dos data : tres ͜͜ʹ͸ϒϩοΫ಺ͷσʔλ͕
    AVOPaOEPTaOUSFTA
    ͱͯ͠དྷΔ
33.  ΠϕϯτετϦʔϜॲཧ ‣ΫϥΠΞϯτ͸ஞ࣍དྷΔFWFOU
    EBUB
    JE Λॲཧͯ͠ॴ๬ͷػೳΛ࣮ݱ͢Δ
    ‣࣮༻ྫ
    EBUBʹ+40/͕ೖͬͯ͘ΔͷͰ ΫϥΠΞϯτ͸ͦΕΛ౎౓ϨϯμϦϯά ͢Δ
    ‣SFUSZ͸جຊతʹ͸ΫϥΠΞϯτϥΠϒϥ Ϧ͕έΞ͢Δ
34.  ઀ଓऴྃॲཧ
35.  ઀ଓऴྃॲཧ ‣ΫϥΠΞϯτ͔Β໌ࣔతʹ44&઀ଓΛ
    DMPTF͢Δ
    ‣ྫ
    AFWFOU4PVSDFDMPTF A
    ‣αʔόʔ͔Β44&઀ଓΛDMPTF͢Δ
    ‣ྫ
    ATTFDMPTFA
    ‣ద֬ʹDMPTF͞Εͳ͔ͬͨ৔߹͸
    ΫϥΠΞϯτ͔Β࠶઀ଓ͕ߦͳΘΕΔ
36.  جຊతʹΫϥΠΞϯτϥΠϒϥϦ͸͜ͷ΁ΜΛΑ͠ͳʹ΍ͬͯ͘ΕΔ ‣ϒϥ΢βʹ͸΋͏࣮૷͕ଘࡏ͍ͯ͠Δ
    ‣A&WFOU4PVSDFA
    ΠϯλʔϑΣΠε
    ‣/BUJWF
    "QQ༻ͷΫϥΠΞϯτ΋ෳ਺͋Δ ग़ల
    IUUQTEFWFMPQFSNP[JMMBPSHFO64EPDT8FC"1*&WFOU4PVSDF
37. 44&ͱඇಉظॲཧ͸૬ੑ͕ྑͦ͞͏ʹࢥ͍·ͤΜ͔ 
38.  44&ͱඇಉظॲཧͷ૬ੑ αϯϓϧγφϦΦ
    
    αʔόʔଆͰඇಉظͰॏ͍ॲཧΛฒྻԽ͠ɺͦͷਐḿΛΫϥΠΞϯτʹ஌ΒͤΔ 
    ϦΫΤετ 
    44&઀ଓཱ֬ 
    ฒྻॲཧ
    ྫ
    --.ਪ࿦ ... 
    ਐḿใࠂ 
    ׬ྃ௨஌
    XDMPTF $MJFOU 4FSWFS --.
39.  44&ͱඇಉظॲཧͷ૬ੑ αϯϓϧγφϦΦ
    
    αʔόʔଆͰඇಉظͰॏ͍ॲཧΛฒྻԽ͠ɺͦͷਐḿΛΫϥΠΞϯτʹ஌ΒͤΔ 👉
    *0଴ͪͷΑ͏ͳ࣌ؒͷ͔͔Δॲཧʹ͸Ұൠʹඇಉظॲཧ͕༗ޮ 44&ʹΑΔද໘తͳମݧͷվળʹՃ͑
    ඇಉظॲཧʹΑΔຊ࣭తͳύϑΥʔϚϯεͷվળ͕ݟࠐΊΔ 
    ϦΫΤετ 
    44&઀ଓཱ֬ 
    ฒྻॲཧ
    ྫ
    --.ਪ࿦ ... 
    ਐḿใࠂ 
    ׬ྃ௨஌
    XDMPTF $MJFOU 4FSWFS --.
40.  BTZOD
    HFN
41.  BTZOD
    HFN TPDLFUSZBTZOD
    
    
    
    
    
    
    
    
    "TZOD
    JT
    B
    DPNQPTBCMF
    BTZODISPOPVT
    *0
    
    
    
    
    
    
    
    
    GSBNFXPSL
    GPS
    3VCZ
    CBTFE
    PO JPFWFOU
    
    
    
    
    'JCFSΛϕʔεͱͨ͠ΠϕϯτυϦϒϯ*0Λఏڙ
    
    
    
    
    ݸਓతʹ͸७ਮʹॻ͖ຯ͕ྑ͘ɺ޷Έ z
42.  BTZOD
    HFN 5ISFBE
    ‣(7-ͷӨڹΛड͚Δ͕ɺ*0଴ͪͳͲ͸ฒྻԽͰ͖Δ
    ‣ϝϞϦϦιʔεΛ৯͏
    େྔʹTQBXOͰ͖ͳ͍
    'JCFS
    ‣ڠௐత
    ΠϕϯτϧʔϓͱϊϯϒϩοΩϯά*0
    ‣ϝϞϦϦιʔεʹର͢Δ༏Ґੑ͕͋Δ
    ‣$16ό΢ϯυͳॲཧ͸ฒྻԽͰ͖ͳ͍
    ‣ϒϩοΩϯάॲཧ͕ೖΔͱશମΛϒϩοΫ͢Δ
    ‣ؔ࿈͢Δίϯϙʔωϯτ͕ඇಉظ*0ɾ'JCFS
    BXBSFͰ͋Δඞཁ͕͋Δ
43.  BTZOD
    HFN 5ISFBE
    ‣(7-ͷӨڹΛड͚Δ͕ɺ*0଴ͪͳͲ͸ฒྻԽͰ͖Δ
    ‣ϝϞϦϦιʔεΛ৯͏
    େྔʹTQBXOͰ͖ͳ͍
    'JCFS
    ‣ڠௐత
    ΠϕϯτϧʔϓͱϊϯϒϩοΩϯά*0
    ‣ϝϞϦϦιʔεʹର͢Δ༏Ґੑ͕͋Δ
    ‣$16ό΢ϯυͳॲཧ͸ฒྻԽͰ͖ͳ͍
    ‣ϒϩοΩϯάॲཧ͕ೖΔͱશମΛϒϩοΫ͢Δ
    ‣ؔ࿈͢Δίϯϙʔωϯτ͕ඇಉظ*0ɾ'JCFS
    BXBSFͰ͋Δඞཁ͕͋Δ *0଴ͪաଟͳ
    λΠϓͷΞϓϦ
    Ͱ͸5ISFBEΑΓ
    εέʔϧ͢Δ
    Մೳੑ͕ߴ͍
44. 44&ͱ૊Έ߹Θ࣮ͤͨ૷ύλʔϯ
45.  44&ͱ૊Έ߹Θ࣮ͤͨ૷ύλʔϯ "TZOD2VFVFͱͷ૬ੑ͕ྑͦ͞͏ ‣ATUBSUA
    ͰλεΫΛฒྻॲཧ
    ‣׬ྃͨ͠Β44&ͷϝοηʔδΛ
    "TZOD2VFVFʹFORVFVF
    ‣AOFYUA
    Ͱ44&ϝοηʔδΛ
    RVFVF͔Βऔಘ
    
46.  44&ͱ૊Έ߹Θ࣮ͤͨ૷ύλʔϯ ͜Μͳײ͡ͰΠςϨʔλతʹ
    ѻ͏ͱ͍͏ύλʔϯ
47.  "TZODλεΫͷಉ࣮࣌ߦ਺੍ݶ #BSSJFSͱ4FNBQIPSFΛ
    ૊Έ߹ΘͤΔͱྑ͍ ‣4FNBQIPSFʹ࠷େฒྻ࣮ߦ਺ͱ
    #BSSJFSΛ༩͑Δ
    ‣A4FNBQIPSFBTZODA
    ͷதͰ
    ॲཧ͢Δͱ࣮ߦ਺Λ੍ݶͰ͖Δ
    ‣A#BSSJFSXBJUA
    Ͱ׬ྃ଴ͪ
    
    XFMMEPDVNFOUFEͰ࠷ߴ
    ‣ IUUQTTPDLFUSZHJUIVCJPBTZODHVJEFTUBTLTJOEFYIUNMDPNCJOJOHBCBSSJFSXJUIBTFNBQIPSF
    ‣ IUUQTTPDLFUSZHJUIVCJPBTZODHVJEFTCFTUQSBDUJDFTJOEFYIUNMVTFBUPQMFWFMTZODUPEFOPUFUIFSPPUPGZPVSQSPHSBN
48.  "TZODλεΫͷλΠϜΞ΢τઃఆ A5BTLXJUI@UJNFPVUA
    Λ࢖͏ͱྑ͍ ‣λΠϜΞ΢τ͠͏ΔॲཧΛ
    ίʔυϒϩοΫͰ༩͑Δ
    ‣λΠϜΞ΢τͨ͠Β
    A"TZOD5JNFPVU&SSPSA
    ্͕͕Δ
    
    XFMMEPDVNFOUFEͰ࠷ߴ
    ‣ IUUQTTPDLFUSZHJUIVCJPBTZODHVJEFTUBTLTJOEFYIUNMUJNFPVUT
    ‣ IUUQTTPDLFUSZHJUIVCJPBTZODHVJEFTCFTUQSBDUJDFTJOEFYIUNMVTFBUPQMFWFMTZODUPEFOPUFUIFSPPUPGZPVSQSPHSBN
49.  44&ͱ૊Έ߹Θ࣮ͤͨ૷ύλʔϯ
    ΠϨΪϡϥʔ BTZOD
    UBTL಺͔Β"DUJWF
    3FDPSE
    NZTRM
    ͷίωΫγϣϯΛCPSSPX͢Δͱɺ
    ಈ࡞தͷ5ISFBE಺ͷίωΫγϣϯΛआ༻͢Δ͜ͱʹͳΔɻ
    आΓ͖ͯͨ
    ୯Ұ5ISFBEʹׂΓ౰ͯΒΕͨ
    ίωΫγϣϯΛ'JCFSԣஅͰ
    ࢖͍ճ͢ͱϦιʔεڝ߹͕ൃੜͯ͠Ϋϥογϡͯ͠͠·͏ɻ ্هͷΑ͏ʹεϨουϓʔϧͱίωΫγϣϯϓʔϧΛซ༻͠ɺ
    TQBXO͞Εͨ
    5ISFBE͕%#ίωΫγϣϯΛద੾ʹऔಘ͢ΔXSBQQFSΛ࢖͏͜ͱͰɺ
    BTZOD
    UBTL಺͔Β%#Λฒߦʹ৮ΕΔΑ͏ͳղܾΛࢼΈͨɻ
    ଞʹԿ͔ྑ͍ΞΠσΞ͕͋Ε͹஌Γ͍ͨʜʜ 5ISFBEΛ࡞Δͱ'JCFSͷྑ͕͞ݮΔͷͰ
50.  BTZODʹ͸44&ͱ૊Έ߹Θͤͯ࢖͏ͨΊͷ
    ػೳ͕શ෦ἧ͍ͬͯͯ͢͹Β͍͠
51. ͢΂͕ͯղܾ
    ΊͰͨ͠ΊͰͨ͠
52. ͱࢥ͍͖΍࣮ಈ·Ͱ͸༷ʑͳϒϩοΧʔ͕͋Δ
    
    ͋ͬͨ 
53.  ϒϩοΧʔ৭ʑ
    Ϩεϙϯεϔομͷௐ੔ ‣ඪ४࢓༷Ͱ͸
    A$BDIF$POUSPM
    OPTUPSFA
    Λ෇͚Αɺͱ͍͏;͏ʹॻ͍ͯ͋Δ
    ‣.%/ͷυΩϡϝϯτͰ͸
    A$BDIF$POUSPM
    OPDBDIFA
    Λ෇͚͍ͯΔ
    ‣Ͳͬͪ΍ͶΜ
    OPDBDIFͰྑͦ͞͏͕ͩʜʜ
    ‣3FBDUͷϓϩΩγΛ௨͢ͱ44&
    4FSWFSTFOU
    FWFOUT ͷϨεϙϯεΛड͚औΕͳ͍
    3FBDU
    
    2JJUBΛࢀߟʹ͢Δͱ
    AOPUSBOTGPSNA
    Λ෇͚ͨ΄͏͕ྑͦ͞͏ʹݟ͑Δ
    ‣ͳͷͰ
    A$BDIF$POUSPM
    OPDBDIF
    OPUSBOTGPSNA
    Λ෇༩͢Δ͜ͱͰಈ͔͍ͯ͠Δ
54.  ϒϩοΧʔ৭ʑ
    Ϩεϙϯεϔομͷௐ੔ ‣ϦόʔεϓϩΩγͷόοϑΝϦϯάΛ཈੍͢ΔͨΊʹ
    A9"DDFM#V ff FSJOH
    OPA
    ΋
    ઃఆ͓ͯ͘͠
    ‣͜ͷ͋ͨΓͷௐ੔͸ϦόʔεϓϩΩγͷઃఆͱಉظΛऔΔඞཁ͋Γ
    ‣࣮ྫ
    
    )551
    
    0,
    
    DBDIFDPOUSPM
    OPDBDIF
    OPUSBOTGPSN
    
    DPOUFOUUZQF
    UFYUFWFOUTUSFBN
    
    YBDDFMCV ff FSJOH
    OP
    
    5SBOTGFS&ODPEJOH
    DIVOLFE
55.  ϒϩοΧʔ৭ʑ
    ϦόʔεϓϩΩγͷઃఆ ྫ
    OHJOYDPOG
    ‣MPDBUJPOʹӈͷΑ͏ͳઃఆΛ෇༩͢Δ
    ‣લܝͷϨεϙϯεϔομͱॏෳ͢ΔՕॴ͸͋Δ͕ʜʜ
    ‣ϓϩτίϧతͳಛੑ͔Β44&ʹ͍ͭͯ͸)551ͷόʔδϣϯΛʹݻఆͯ͠
    ͓͘΄͏͕҆શ
    ‣ϦόʔεϓϩΩγ͕ଟஈͰ͋ͬͨ৔߹͸ܦ࿏͢΂ͯͷઃఆΛ͢Δඞཁ͕͋Δ
    ‣Ұ෦ͷϦόʔεϓϩΩγͰઃఆ͕࿙Ε͍ͯͯಈ͔ͳ͔ͬͨܦݧ͋Γ
    ഊ ༨ஊ
    ϦόʔεϓϩΩεͷઃఆ౳ʹΑΓແ௨৴ঢ়ଶ͕ଓ͘ͱίωΫγϣϯ͕੾ΒΕΔ͜ͱ͕͋ΔͷͰ44&্ͰϋʔτϏʔτΛૹΔඞཁ͕͋Δ৔߹͕͋Δ
56.  ϒϩοΧʔ৭ʑ
    ศརͳ"DUJPO$POUSPMMFS-JWF͕ͩʜʜ AJODMVEF
    "DUJPO$POUSPMMFS-JWFA
    ͨ͠ίϯτϩʔϥʔͰ
    ABQQMJDBUJPOKTPOA
    ͷΑ͏ͳDPOUFOUUZQF͕ʮී௨ͳʯϨεϙϯεΛฦ٫͠Α͏ͱ͢Δͱࢗ͞Δ
    ‣"DUJPO಺Ͱʮ44&ͷΑ͏ͳTUSFBNJOHʯΛฦ٫͢Δ࣌͸ίʔυ಺Ͱ໌ࣔతʹ
    ADMPTFA
    ͯ͠ϦιʔεΛฦ٫͢Δνϟϯε͕͋Δ
    ‣Ұํɺී௨ͷϦιʔεΛී௨ʹฦ٫͢Δ
    FH
    ASFOEFS
    KTPO
    A
    ͱ
    ADMPTFA
    ͕ݺ͹ΕΔػձ͕ແ͍ͨΊϦιʔε͕औΒΕͬͺͳ͠ʹ
    
    
    
    
    
    
    👉
    QVNB
    UISFBE͕CVTZʹͳͬͯΞϓϦέʔγϣϯશମ͕ετʔϧ͢Δ
    ˰
    ैͬͯ44&ͱͦΕҎ֎ͱͰ$POUSPMMFS
    $MBTTΛ෼͚Δඞཁ͕͋Δ
    
    
    
    
    3BJMTతʹͪΐͬͱඍົͳݟͨ໨ʹʜʜʁ
57.  DPNNJUUFF
    HFNͷ3FTQPOTF
    #PEZ
    7BMJEBUJPO
    .JEEMFXBSFΛ࢖͏ͱࢗ͞Δ
    ‣ਖ਼͘͠ݴ͏ͱϨεϙϯεϘσΟΛશ෦ฦ͠ऴ͑Δ·Ͱϛυϧ΢ΣΞͰόοϑΝͯ͠
    ͠·͏ͷͰετϦʔϛϯάॲཧʹͳΒͳ͍
    ‣QVNB
    UISFBE͕CVTZʹͳͬͯΞϓϦέʔγϣϯશମ͕ετʔϧ͢Δ
    ࠶ొ৔
    ‣ৄࡉ͸աڈͷࢿྉ
    $PNNJUUFF.JEEMFXBSF3FTQPOTF7BMJEBUJPOͰ4USFBNJOH
    3FTQPOTF
    #PEZΛॲཧ͢Δͱࢗ͞Γ·͢ ϒϩοΧʔ৭ʑ
    DPNNJUUFF
    HFN
58.  Ξο
    IUUQTHJUIVCDPNJOUFSBHFOUDPNNJUUFFCMPCDGDGFDDBDBDDEGDBCMJCDPNNJUUFFTDIFNB@WBMJEBUPSPQFO@BQJ@SC աڈεϥΠυ͔ΒҾ༻
59.  ‣DPNNJUUFFʹݶΒͣϨεϙϯεϘσΟશମΛόοϑΝ͢ΔΑ͏ͳϛυϧ΢ΣΞͰ͸
    ಉ༷ͷ໰୊͕ൃੜ͢ΔՄೳੑ͕͋Δ
    ‣αʔόʔଆ͚ͩͰ͸ͳ͘ΫϥΠΞϯτଆͰ΋ى͜ΔՄೳੑ͕͋ΔͷͰ஫ҙ
    ‣ྫ
    "OESPJEͷ)UUQ-PHHJOH*OUFSDFQUPS ϒϩοΧʔ৭ʑ
    DPNNJUUFF
    HFN
60.  0QFO"1*ͱ44&ͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣0QFO"1*͕3&45GVMͳ"1*ఆٛΛهड़͢Δ͜ͱΛओ؟ͱ͍ͯ͠ΔͨΊ
    4USFBNJOHͳ44&ͱͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣ΫϥΠΞϯτͷࣗಈੜ੒͸ࠓ͋ΔҰൠతͳπʔϧͰ͸ࠔ೉ ϒϩοΧʔ৭ʑ
    0QFO"1*
    
61. 44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά
62.  44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά ϦΫΤετϔομͱϨεϙϯεϔομΛਅͬઌʹݟΔ
    ‣ϔομ͕ҧ͍ͬͯΔͱجຊతʹ͸ਖ਼ৗʹಈ͔ͳ͍
    ‣ ͨ·ʹ࣮૷ґଘͰ͏͔ͬΓಈ͍ͨΓͯ͠͠·͏͜ͱ͕͋Δ͕ʜʜ
63.  44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά ‣ϦΫΤετͱϨεϙϯε͕௨Δܦ࿏͢΂ͯΛνΣοΫ͢Δ
    ‣ྫ͑͹ϦόʔεϓϩΩγ͕͋ΔͷʹΞϓϦαʔόʔͱ͚ͩૄ௨ࢼݧͯ͠΋ҙຯ͕ແ͍
    
64.  44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά ‣ϦΫΤετͱϨεϙϯε͕௨Δܦ࿏͢΂ͯΛνΣοΫ͢Δ
    ‣ྫ͑͹ϦόʔεϓϩΩγ͕͋ΔͷʹΞϓϦαʔόʔͱ͚ͩૄ௨ࢼݧͯ͠΋ҙຯ͕ແ͍
    ‣ ܦݧ্
    "84ͷ"-#͸ݪҼʹͳΒͳ͍
65.  44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά ‣ϦΫΤετͱϨεϙϯε͕௨Δܦ࿏͢΂ͯΛνΣοΫ͢Δ
    ‣ྫ͑͹ϦόʔεϓϩΩγ͕͋ΔͷʹΞϓϦαʔόʔͱ͚ͩૄ௨ࢼݧͯ͠΋ҙຯ͕ແ͍
    ‣ ܦݧ্
    "84ͷ"-#͸ݪҼʹͳΒͳ͍ ͝ΊΜΑʜʜ
66.  44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά ‣νϟϯΫαΠζͰ੾ΒΕͯ44&ͷίϯςϯπ͸ૹΒΕͯ͘Δ͜ͱʹཹҙ͢Δ
    ‣44&ͷΠϕϯτϒϩοΫ୯ҐͰૹΒΕͯ͘ΔΘ͚Ͱ͸ͳ͘ɺ
    QVNB΍OHJOY౳Ͱઃఆ͞ΕΔνϟϯΫαΠζʹैͬͯૹΒΕͯ͘Δ
    ‣ΫϥΠΞϯτ͸ϨεϙϯεϘσΟΛετϦʔϛϯάͰड͚औΓɺ
    ͦΕΛόοϑΝ͍͖ͯ͠ͳ͕ΒσϦϛλ͕དྷͨ࣌ʹ
    44&ͷΠϕϯτϒϩοΫͱͯ͠QBSTF͢Δඞཁ͕͋Δ
67.  44&ͰϋϚͬͨ࣌ͷτϥϒϧγϡʔςΟϯά ‣UDQEVNQ
    ύέοτΩϟϓνϟ
    ΛݟΒΕΔͷ͕Ұ൪ྑ͍
    ‣͍Ζ͍Ζͱ໘౗Ͱ͋Δͷ͸ͦ͏
    ‣"NB[PO
    &$4ͷΑ͏ͳίϯςφ؀ڥʹࠩ͠ࠐΉํ๏
    ‣5-4ʹ્·ΕΔ
68. ϒϩοΧʔΛऔΓআ͍͍ͯ͘औΓ૊Έ 
69.  ϒϩοΧʔ৭ʑ
    ศརͳ"DUJPO$POUSPMMFS-JWF͕ͩʜʜ AJODMVEF
    "DUJPO$POUSPMMFS-JWFA
    ͨ͠ίϯτϩʔϥʔͰ
    ABQQMJDBUJPOKTPOA
    ͷΑ͏ͳDPOUFOUUZQF͕ʮී௨ͳʯϨεϙϯεΛฦ٫͠Α͏ͱ͢Δͱࢗ͞Δ
    ‣QVNB
    UISFBE͕CVTZʹͳͬͯΞϓϦέʔγϣϯશମ͕ετʔϧ͢Δ
70.  ϒϩοΧʔ৭ʑ
    ศརͳ"DUJPO$POUSPMMFS-JWF͕ͩʜʜ AJODMVEF
    "DUJPO$POUSPMMFS-JWFA
    ͨ͠ίϯτϩʔϥʔͰ
    ABQQMJDBUJPOKTPOA
    ͷΑ͏ͳDPOUFOUUZQF͕ʮී௨ͳʯϨεϙϯεΛฦ٫͠Α͏ͱ͢Δͱࢗ͞Δ
    ‣QVNB
    UISFBE͕CVTZʹͳͬͯΞϓϦέʔγϣϯશମ͕ετʔϧ͢Δ IUUQTHJUIVCDPNSBJMTSBJMTQVMM
71.  DPNNJUUFF
    HFNͷ3FTQPOTF
    #PEZ
    7BMJEBUJPO
    .JEEMFXBSFΛ࢖͏ͱࢗ͞Δ
    ‣ਖ਼͘͠ݴ͏ͱϨεϙϯεϘσΟΛશ෦ฦ͠ऴ͑Δ·Ͱϛυϧ΢ΣΞͰόοϑΝͯ͠
    ͠·͏ͷͰετϦʔϛϯάॲཧʹͳΒͳ͍
    ‣QVNB
    UISFBE͕CVTZʹͳͬͯΞϓϦέʔγϣϯશମ͕ετʔϧ͢Δ
    ࠶ొ৔ ϒϩοΧʔ৭ʑ
    DPNNJUUFF
    HFN
72.  DPNNJUUFF
    HFNͷ3FTQPOTF
    #PEZ
    7BMJEBUJPO
    .JEEMFXBSFΛ࢖͏ͱࢗ͞Δ
    ‣ਖ਼͘͠ݴ͏ͱϨεϙϯεϘσΟΛશ෦ฦ͠ऴ͑Δ·Ͱϛυϧ΢ΣΞͰόοϑΝͯ͠
    ͠·͏ͷͰετϦʔϛϯάॲཧʹͳΒͳ͍
    ‣QVNB
    UISFBE͕CVTZʹͳͬͯΞϓϦέʔγϣϯશମ͕ετʔϧ͢Δ
    ࠶ొ৔ IUUQTHJUIVCDPNJOUFSBHFOUDPNNJUUFFQVMM ϒϩοΧʔ৭ʑ
    DPNNJUUFF
    HFN
73.  ϒϩοΧʔ৭ʑ
    DPNNJUUFF
    HFN 6TBHF
    &YBNQMF ಺෦࣮૷
    ؆ུ  if strea mi ng_response?(headers) response = Rack : : BodyProxy.ne w (response) do begin validate(request, status, headers, response) rescue = > e handle_exception(e, request.env) raise e if @raise end end else ಺෦తʹ3BDL#PEZ1SPYZΛ࢖༻
    ৄ͘͠͸1VMM
    3FRVFTUΛࢀরͷ͜ͱ
74.  ϒϩοΧʔ৭ʑ
    0QFO"1*
     ‣0QFO"1*ͱ44&ͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣0QFO"1*͕3&45GVMͳ"1*ఆٛΛهड़͢Δ͜ͱΛओ؟ͱ͍ͯ͠ΔͨΊ
    4USFBNJOHͳ44&ͱͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣ΫϥΠΞϯτͷࣗಈੜ੒͸ࠓ͋ΔҰൠతͳπʔϧͰ͸ࠔ೉
75.  ϒϩοΧʔ৭ʑ
    0QFO"1*
     ‣0QFO"1*ͱ44&ͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣0QFO"1*͕3&45GVMͳ"1*ఆٛΛهड़͢Δ͜ͱΛओ؟ͱ͍ͯ͠ΔͨΊ
    4USFBNJOHͳ44&ͱͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣ΫϥΠΞϯτͷࣗಈੜ੒͸ࠓ͋ΔҰൠతͳπʔϧͰ͸ࠔ೉ IUUQTHJUIVCDPN0"*0QFO"1*4QFDJ fi DBUJPOEJTDVTTJPOT
76.  ϒϩοΧʔ৭ʑ
    0QFO"1*
     ‣0QFO"1*ͱ44&ͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣0QFO"1*͕3&45GVMͳ"1*ఆٛΛهड़͢Δ͜ͱΛओ؟ͱ͍ͯ͠ΔͨΊ
    4USFBNJOHͳ44&ͱͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣ΫϥΠΞϯτͷࣗಈੜ੒͸ࠓ͋ΔҰൠతͳπʔϧͰ͸ࠔ೉ IUUQTHJUIVCDPN0"*0QFO"1*4QFDJ fi DBUJPOEJTDVTTJPOT
77.  ϒϩοΧʔ৭ʑ
    0QFO"1*
     ‣0QFO"1*ͱ44&ͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣0QFO"1*͕3&45GVMͳ"1*ఆٛΛهड़͢Δ͜ͱΛओ؟ͱ͍ͯ͠ΔͨΊ
    4USFBNJOHͳ44&ͱͷ૬ੑ͕͋·Γྑ͘ͳ͍
    ‣ΫϥΠΞϯτͷࣗಈੜ੒͸ࠓ͋ΔҰൠతͳπʔϧͰ͸ࠔ೉  IUUQTHJUIVCDPN0"*0QFO"1*4QFDJ fi DBUJPOEJTDVTTJPOT
78.  ϒϩοΧʔ৭ʑ
    0QFO"1*
     ‣0QFO"1*
    ͔Β
    A4FRVFOUJBM
    .FEJB
    5ZQFTA
    ͕ಋೖ͞ΕΔ
    ‣FH
    ABQQMJDBUJPOKTPOMA
    AUFYUFWFOUTUSFBNA
    ‣4FRVFOUJBM
    .FEJB
    5ZQFTͷ֤ΞΠςϜͷεΩʔϚΛ
    AJUFN4DIFNBAͰఆٛͰ͖ΔΑ͏ʹͳΔ ࢀর
    IUUQTTQFDPQFOBQJTPSHPBTWIUNM
79.  ϒϩοΧʔͰ͸ͳ͍͕ศརʹ͍ͯ͘͠औΓ૊Έ
80.  BTZOD
    HFNͷϑοΫ
    VOIBOEMFEͳྫ֎Λϋϯυϧ͢Δ IUUQTHJUIVCDPNTPDLFUSZBTZODQVMM
81.  STQFDTTFNBUDIFST 44&ؔ࿈ͷςετΛॻ͖΍͘͢͢ΔͨΊͷSTQFD
    NBUDIFS
82.  STQFDTTFNBUDIFST &YBNQMF
83. 44&पΓ͸ࠓͰ΋े෼ʹαϙʔτ͞Ε͍ͯΔ
    ͋Γ͕͍ͨ
    ҰํͰ࢖ͬͯΈΔͱ΋ͬͱศརʹͰ͖ΔՕॴ͕͋Δ͜ͱʹؾ෇͘
84.  44&ʹݶΒͣ
    ͦͷΑ͏ͳࣄฑʹग़͘Θͨ࣌͠ʹ͸
    ίϛϡχςΟʹؐݩͰ͖Δͱྑ͍Ͱ͢Ͷ
85.  ίϛϡχςΟΛҭͯΔͷ͸ར༻ऀ
86. ·ͱΊ 
87.  ·ͱΊ ‣44&ʹ͍ͭͯઆ໌͠·ͨ͠
    ‣44&ͷ༗ޮͳ༻్ʹ͍ͭͯઆ໌͠·ͨ͠
    ‣44&ͱBTZODΛ૊Έ߹ΘͤͨඇಉظॲཧʹΑΔԸܙɾ࣮૷ύλʔϯΛઆ໌͠·ͨ͠
    ‣ΤίγεςϜΛศརʹͰ͖ΔνϟϯεΛݟ෇͚ͨΒͲ͠Ͳ͠ߩݙ͍͖ͯ͠·͠ΐ͏
89. ࢀߟ৘ใ
90.  ࢀߟ৘ใ ‣)5.-
    4UBOEBSE
    
    
    4FSWFSTFOU
    FWFOUT
    IUUQTIUNMTQFDXIBUXHPSHNVMUJQBHFTFSWFSTFOUFWFOUTIUNM
    ‣4FSWFSTFOU
    FWFOUT
    
    8FC
    "1*T
    c
    .%/
    IUUQTEFWFMPQFSNP[JMMBPSHFO64EPDT8FC"1*4FSWFSTFOU@FWFOUT