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Lightbend Academyオンライントレーニングを受けてみた
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Yohei TSUJI
June 16, 2020
Programming
4
1.4k
Lightbend Academyオンライントレーニングを受けてみた
Lightbend社のオンライントレーニング「Lightbend Academy」の紹介と、受講したリアクティブアーキテクチャの理論についてのコースで学んだことをご紹介します。
Yohei TSUJI
June 16, 2020
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Transcript
-JHIUCFOE"DBEFNZ ΦϯϥΠϯτϨʔχϯάΛड͚ͯΈͨ ϦΞΫςΟϒϚΠΫϩαʔϏεͷཧฤ @crossroad0201 4DBMBؔษڧձ 1
© Chatwork ࣗݾհ :PIFJ546+* !DSPTTSPBE $IBUXPSL4DBMBΤϯδχΞ ࣍ੈΞʔΩςΫνϟͷઃܭɾධՁʹܞΘ͍ͬͯ·͢ 2
© Chatwork ࣍ -JHIUCFOE"DBEFNZͱ ͭͷτϨʔχϯάύε डߨͷίπ
͜͜·Ͱडߨֶͯ͠Μͩ͜ͱ ͳ͓ɺ͜ͷεϥΠυʹScalaͷ͍͍ͬ͞ग़͖ͯ·ͤΜ... 3
-JHIUCFOE"DBEFNZͱ 4
© Chatwork -JHIUCFOE"DBEFNZͱ w "LLBͰΒΕΔ-JHIUCFOE͕ࣾఏڙ͍ͯ͠Δ ΦϯϥΠϯτϨʔχϯάϓϩάϥϜɻ w ಉࣾͷΤϯλʔϓϥΠζ͚༗ঈαʔϏεͰ͋Δ ʮ-JHIUCFOE4VCTDSJQUJPOʯͰఏڙ͞ΕΔϓϩάϥϜͷதͷͻͱͭɻ w
-JHIUCFOE4VCTDSJQUJPOͷ͓ஈαΠτʹهࡌ͕ͳ͘ɺ ཁ͓͍߹ΘͤͬΆ͍ w ৽ܕίϩφͷӨڹͳͷ͔ɺ·ͰແঈͰडߨͰ͖Δɻ 5
© Chatwork ֓ཁ w ࣗͷϖʔεͰ͖ͳͱ͖ʹֶशͰ͖Δࣗशܕɻ w ओʹϦΞΫςΟϒϚΠΫϩαʔϏεΛ։ൃ͢ΔͨΊͷࣝΛֶͿɻ w ڭࡐಈըʹΑΔղઆͱΫΠζɺ֬ೝςετͳͲɻͪΖΜӳޠɻ 6
© Chatwork डߨͰ͖Δίʔε w -JHIUCFOE"DBEFNZʹͷίʔε͕͋Δɻ w ͻͱͭͷίʔεडߨʹ͔͔Δ࣌ؒɺ͍͍ͩͨʙ࣌ؒ͘Β͍ɻ w ֤ίʔε࠷ޙͷࢼݧʹύε͢Δͱɺमྃূͱόοδ͕Β͑·͢ɻ 7
© Chatwork डߨͷಈػ w $IBUXPSLͷ࣍ੈΞʔΩςΫνϟͰ࠾༻Λݕ౼͍ͯ͠Δٕज़ελο ΫͷΩϟονΞοϓɻ w ݴޠɹɹɹɹɹɿ4DBMB w ϑϨʔϜϫʔΫɿ"LLB
w ΞʔΩςΫνϟɿυϝΠϯۦಈઃܭɺϦΞΫςΟϒϚΠΫϩαʔϏ εɺΠϕϯτιʔγϯάɺ$234 8
ͭͷτϨʔχϯάύε 9
© Chatwork ͭͷτϨʔχϯάύε ֤ίʔεҙͷॱʹडߨͰ͖·͕͢ɺతʹ߹ΘͤͯମܥతʹֶशͰ ͖ΔΑ͏ɺͭͷτϨʔχϯάύε͕ఏҊ͞Ε͍ͯ·͢ɻ ΞʔΩςΫνϟ 4DBMBݴޠ
"LLBϚΠΫϩαʔϏε -PHPNϚΠΫϩαʔϏε σʔλΤϯδχΞϦϯά 10
© Chatwork ΞʔΩςΫνϟ ϦΞΫςΟϒϚΠΫϩαʔϏεΛ։ൃ͢ΔͨΊͷཧΛֶͼ·͢ɻ *OUSPEVDUJPOUP3FBDUJWF %PNBJO%SJWFO%FTJHO 3FBDUJWF.JDSPTFSWJDFT
#VJMEJOH4DBMBCMF4ZTUFNT %JTUSJCVUFE.FTTBHJOH1BUUFSOT $234&WFOU4PVSDJOH 11
© Chatwork 4DBMBݴޠ "LLBΛ͍͜ͳͨ͢ΊʹඞཁʹͳΔ4DBMBݴޠΛֶͼ·͢ɻ 4DBMB-BOHVBHF1SPGFTTJPOBM 12
© Chatwork "LLBϚΠΫϩαʔϏε "LLBΞΫλʔͷ͍ํ͔ΒΫϥελͷΈํɺӡ༻ࢹͳͲɺ"LLBΞ ϓϦέʔγϣϯΛ։ൃ͠ӡ༻͢ΔͨΊͷࣝΛֶͼ·͢ɻ -JHIUCFOE5FMFNFUSZ*OTUBMMBUJPO "LLBGPS4DBMB1SPGFTTJPOBM
"LLB$MVTUFS'VOEBNFOUBMT "LLB$MVTUFS4IBSEJOH 4DBMB "LLB$MVTUFS4IBSEJOH +BWB "LLB4USFBNTGPS4DBMB1SPGFTTJPOBM "LLB4USFBNTGPS+BWB1SPGFTTJPOBM 13
© Chatwork -PHPNϚΠΫϩαʔϏε -PHPNϚΠΫϩαʔϏεϑϨʔϜϫʔΫͷॳาʹֶ͍ͭͯͼ·͢ɻ +BWB-BOHVBHF-BNCEBT +BWB-BOHVBHF'VUVSFT -PHPNGPS+BWB)FMMP8PSME
"LLB$MVTUFS'VOEBNFOUBMT GPS-PHPN$MVTUFSJOH 14
© Chatwork σʔλΤϯδχΞϦϯά $MPVEqPXΛ͏ͨΊͷجૅࣝΛֶͼ·͢ɻʢͨͿΜʣ %BUB1SJODJQMFT $MPVEqPX1SJODJQMFT 15
डߨͷίπ 16
© Chatwork डߨͷίπ ӳޠ͕ฉ͖औΕͳ͍߹ɺ͜͜ͷจࣈ ى͜͠Λ%FFQ-Ͱ༁͢Δʢসʣ ͨͩ͠ɺจͷ్தͰվߦ͞Εͯ͠·ͬͯ ͍ΔͷͰߦʹܗ͢ΔඞཁΞϦɻ ͨͿΜɺಈըΛ࠷ޙ·Ͱݟ͔ͨΛه͞ Εͯͦ͏ɻ จࣈى͜͠ͷ࠷ޙͷจΛΫϦοΫ͢Δ
ͱָͰ͖·͢ɻ ղઆͷޙͷ֬ೝͰɺͨ·ʹهड़ࣜͷ ͕͋ΔͷͰɺओͳݻ༗໊ࢺʢӳ୯ ޠʣϝϞ͓ͬͯ͘ํ͕ແͰ͢ɻ 17
͜͜·Ͱडߨֶͯ͠Μͩ͜ͱ 18
© Chatwork ΞʔΩςΫνϟ *OUSPEVDUJPOUP3FBDUJWF %PNBJO%SJWFO%FTJHO 3FBDUJWF.JDSPTFSWJDFT
#VJMEJOH4DBMBCMF4ZTUFNT %JTUSJCVUFE.FTTBHJOH1BUUFSOT $234&WFOU4PVSDJOH 4DBMBݴޠ 4DBMB-BOHVBHF1SPGFTTJPOBM "LLBϚΠΫϩαʔϏε -JHIUCFOE5FMFNFUSZ*OTUBMMBUJPO "LLBGPS4DBMB1SPGFTTJPOBM "LLB$MVTUFS'VOEBNFOUBMT "LLB$MVTUFS4IBSEJOH 4DBMB "LLB4USFBNTGPS4DBMB1SPGFTTJPOBM डߨ͍ͨ͠ίʔε ݟੵΓɿ6࣌ؒ/ίʔε * 12ίʔε = 72࣌ؒ 19
© Chatwork ΞʔΩςΫνϟ *OUSPEVDUJPOUP3FBDUJWF %PNBJO%SJWFO%FTJHO 3FBDUJWF.JDSPTFSWJDFT
#VJMEJOH4DBMBCMF4ZTUFNT %JTUSJCVUFE.FTTBHJOH1BUUFSOT $234&WFOU4PVSDJOH 4DBMBݴޠ 4DBMB-BOHVBHF1SPGFTTJPOBM "LLBϚΠΫϩαʔϏε -JHIUCFOE5FMFNFUSZ*OTUBMMBUJPO "LLBGPS4DBMB1SPGFTTJPOBM "LLB$MVTUFS'VOEBNFOUBMT "LLB$MVTUFS4IBSEJOH 4DBMB "LLB4USFBNTGPS4DBMB1SPGFTTJPOBM ਐ ͍͍ͩͨि1ϖʔεɻಓͷΓ͍... 20
© Chatwork ΞʔΩςΫνϟ *OUSPEVDUJPOUP3FBDUJWF 21
© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ͳͥϦΞΫςΟϒͳͷ͔ʁ ϦΞΫςΟϒΞʔΩςΫνϟͷݪଇ ϦΞΫςΟϒΞʔΩςΫνϟͱϦΞΫςΟϒϓϩάϥϛϯάͷҧ͍ 22
© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ̍ɽͳͥϦΞΫςΟϒͳͷ͔ʁ w ࣾձ׆ಈʹ͓͍ͯɺιϑτΣΞ͕Ռׂͨ͢େ͖͘ͳΔҰํɻ w ඞཁͳͱ͖ʹར༻Ͱ͖ͳ͚ΕɺϢʔβʔ͙͢ʹସɾڝ߹ʹ Γ͑ͯ͠·͏ɻ w
োͰશମ͕ఀࢭɺϝϯςφϯεͰ͑ͳ͍͏ڐ͞Εͳ͍ɻ w ϦΞΫςΟϒΞʔΩςΫνϟ͕ղܾ͍ͨ͠՝ɺٕज़తͳ՝Ͱ ͳ͘ɺ͜ͷΑ͏ͳιϑτΣΞʹର͢ΔظͷมԽͰ͋Δɻ 23
© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ̎ɽϦΞΫςΟϒΞʔΩςΫνϟͷݪଇ w ଈԠੑ 3FTQPOTJWF ৗʹԠΛฦ͢ w ྗੑ
&MBTUJD ෛՙʹԠͨ͡εέʔϧΞοϓʗμϯ w োੑ 3FTJMJFOU ো͕ൃੜͯ͠ճ෮͢Δ w ϝοηʔδۦಈ .FTTBHF%SJWFO ඇಉظɾϊϯϒϩοΩϯά ग़యɿϦΞΫςΟϒએݴ https://www.reactivemanifesto.org/ja ͯ͢ଈԠੑͷͨΊɻ ৗʹԠΛฦ͢͜ͱ͕Ϣʔβʔͷ৴པʹͭͳ͕Δɻ 24
© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF ̏ɽϦΞΫςΟϒΞʔΩςΫνϟͱϦΞΫςΟϒϓϩάϥϛϯάͷҧ͍ w ϦΞΫςΟϒΞʔΩςΫνϟɺγεςϜ͕ϦΞΫςΟϒݪଇΛຬ ͨͨ͢Ίͷํ๏ɻ w ϦΞΫςΟϒϓϩάϥϛϯάɺϦΞΫςΟϒΞʔΩςΫνϟΛޮ తʹ࣮ݱ͢Δखஈͷͻͱͭɻ
w ϦΞΫςΟϒϓϩάϥϛϯά͔ͨ͠Βͱ͍ͬͯɺϦΞΫςΟϒͳγ εςϜʹͳΔΘ͚Ͱͳ͍ɻ 25
© Chatwork ΞʔΩςΫνϟ*OUSPEVDUJPOUP3FBDUJWF w "LLB͕ϕʔεͱ͢ΔΞΫλʔγεςϜɺϦΞΫςΟϒΞʔΩςΫ νϟͱϦΞΫςΟϒϓϩάϥϛϯάΛγʔϜϨεʹͭͳ͙͜ͱ͕Ͱ ͖ΔύϥμΠϜɻ w ϦΞΫςΟϒγεςϜΛߏங͢ΔͨΊʹΞΫλʔϞσϧඞਢͰ ͳ͍͕ɺ͞·͟·ͳύϥμΠϜΛΈ߹Θͤͯ͏ΑΓɺΞΫ
λʔϞσϧΛ͏΄͏ָ͕ɻ 26
© Chatwork ΞʔΩςΫνϟ %PNBJO%SJWFO%FTJHO 27
© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO υϝΠϯۦಈઃܭ %%% ͱϦΞΫςΟϒΞʔΩςΫνϟ υϝΠϯͷׂͱϚΠΫϩαʔϏε
%%%ʹΑΔϚΠΫϩαʔϏεͷઃܭͱ࣮ 28
© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO ̍ɽυϝΠϯۦಈઃܭ %%% ͱϦΞΫςΟϒΞʔΩςΫνϟ w %%%ͷߟ͑ํنଇɺϦΞΫςΟϒΞʔΩςΫνϟͱੑ͕ߴ ͍ɻ w
େ͖ͳυϝΠϯΛɺϢʔβʔʗϏδωεͷࢹ͔ΒҰ؏ੑͷ͋Δ୯ Ґʹׂ͢Δ͜ͱɺϦΞΫςΟϒཁ݅Λຬͨͨ͢Ίʹඞཁͳ ఔͰ͋Δɻ 29
© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO ̎ɽυϝΠϯͷׂͱϚΠΫϩαʔϏε w ϚΠΫϩαʔϏεͷׂ୯ҐΛܾΊΔͨΊʹɺ%%%ͷʮڥք͚Β ΕͨίϯςΩετʯΛ͏ɻ w ϚΠΫϩαʔϏεڥք͚ΒΕͨίϯςΩετPS/ w
υϝΠϯΛׂ͢Δܾ·ͬͨखॱͳ͍͕ɺϢʔβʔͷจԽͷมΘ Γ૬ޓ࡞༻ʹண͢Δɻ w ࠷ۙΠϕϯτϑΝʔετͳ%%%͕͞Εͭͭ͋Δɻ 30
© Chatwork ΞʔΩςΫνϟ%PNBJO%SJWFO%FTJHO ̏ɽ%%%ʹΑΔϚΠΫϩαʔϏεͷઃܭͱ࣮ w ͭͷΞΫςΟϏςΟΛநग़͠ɺඇಉظϝοηʔδϯάͰ૬ޓ࡞༻ ͢Δɻ ɹίϚϯυɿঢ়ଶΛมԽͤ͞Δཁٻɻಛఆͷ૬खʹૹ৴ɻ ɹΫΤϦɹɿใΛऔಘ͢Δཁٻɻঢ়ଶมԽ͠ͳ͍ɻ ɹΠϕϯτɿঢ়ଶ͕มԽͨ͜͠ͱͷهɻෆಛఆଟʹ৴ɻ
w %%%ͷʮूϧʔτʯ͕ΞΫλʔͷީิʹͳΔɻ 31
© Chatwork ΞʔΩςΫνϟ 3FBDUJWF.JDSPTFSWJDFT 32
© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ϞϊϦεͱ40"ͱϚΠΫϩαʔϏε ϦΞΫςΟϒϚΠΫϩαʔϏεͷಛ ϚΠΫϩαʔϏεΛͲ͏ͬͯϦΞΫςΟϒʹ͢Δ͔ 33
© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ̍ɽϞϊϦεͱ40"ͱϚΠΫϩαʔϏε w ͲͪΒ͕ྑ͍ѱ͍Ͱͳ͘ɺ1SPT$POTΛཧղ͍͚ͯ͠Δɻ w ϞϊϦεྗੑ͕ͳ͍ͷͰΧεέʔυނোΛىͯ͜͠͠·͏ɻ w 40"ͱϚΠΫϩαʔϏεͷҧ͍σϓϩΠͷཁٻɻ
40"ͰαʔϏεͱσϓϩΠͷ୯Ґ͕ಉ͡Ͱͳͯ͘ྑ͍ɻ w ϚΠΫϩαʔϏεɺ୯ҰͷݪଇʹैͬͯͦΕΛมߋ͢Δཧ༝ Λ͚̍ͭͩ࣋ͭΑ͏ʹׂ͢Δ͖ɻ 34
© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ̎ɽϦΞΫςΟϒϚΠΫϩαʔϏεͷಛ w ϚΠΫϩαʔϏεؒͷ௨৴ɺϦΞΫςΟϒγεςϜʹ͓͍ͯݪ ଇɺඇಉظɾϊϯϒϩοΩϯάʹ͢Δɻ w ͭͷ؍ͰϚΠΫϩαʔϏεΛִͰ͖ΔΑ͏ʹׂ͢Δɻ ঢ়ଶɿαʔϏε͕࣋ͭঢ়ଶͷΞΫηε"1*ͰͷΈެ։͢Δɻ
ۭؒɿαʔϏεޓ͍ʹͲ͜ʹσϓϩΠ͞Ε͍ͯΔ͔Βͳ͍ɻ ࣌ؒɿଞͷαʔϏεͷॲཧΛͨͳ͍ɻ োɿଞͷαʔϏεͷোͷӨڹΛड͚ͳ͍ɻ 35
© Chatwork ΞʔΩςΫνϟ3FBDUJWF.JDSPTFSWJDFT ̏ɽϚΠΫϩαʔϏεΛͲ͏ͬͯϦΞΫςΟϒʹ͢Δ͔ w αʔΩοτϒϨʔΧͰɺΧεέʔυނোΛආ͚Δɻ w ϝοηʔδۦಈͰɺඇಉظɾϊϯϒϩοΩϯάʹ௨৴͢Δɻ w ඞཁͳσʔλͷίϐʔΛ࣋ͭͳͲͯ͠ɺ΄͔ͷαʔϏε͕ނোͯ͠
ࣗతʹػೳΛఏڙʢ੍͖ͰʣͰ͖ΔΑ͏ʹ͢Δɻ w ήʔτΣΠαʔϏεͰɺΫϥΠΞϯτ͕ͯ͢ͷϚΠΫϩαʔϏ εΛΒͳͯ͘ྑ͍Α͏ʹ͢Δɻ 36
© Chatwork ΞʔΩςΫνϟ #VJMEJOH4DBMBCMF4ZTUFNT 37
© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT Ұ؏ੑɺՄ༻ੑɺεέʔϥϏϦςΟ ࢄγεςϜͷεέʔϥϏϦςΟΛ͛Δͷ Ұ؏ੑͱγϟʔσΟϯά
Մ༻ੑͱ$3%5 Ұ؏ੑͱՄ༻ੑͷબ 38
© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̍ɽҰ؏ੑɺՄ༻ੑɺεέʔϥϏϦςΟ w Ұ؏ੑɿ ɹڧ͍Ұ؏ੑɾɾɾৗʹҰ؏ੑ͕͋Δঢ়ଶ͕อͨΕΔ ɹ݁Ռ߹ੑɾɾɾ࠷ऴతʹҰ؏ੑ͕͋Δঢ়ଶʹͳΔ w Մ༻ੑɿ
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© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̎ɽࢄγεςϜͷεέʔϥϏϦςΟΛ͛Δͷ w Ұ؏ੑΛอͱ͏ͱ͢ΔͱσʔλͷϩοΫ͕ൃੜ͢ΔɻϩοΫ͕Ϙτ ϧωοΫʹͳͬͯεέʔϧͰ͖ͳ͍ɻʢΞϜμʔϧͷ๏ଇʣ w Մ༻ੑΛอͭͨΊʹσʔλΛෳ͢Δͱσʔλؒͷಉظ͕ʹͳ Δɻ࠷ѱɺಉظͷίετ͕εέʔϧͨ͠ೳྗΛ্ճͬͯ͠·͏ɻ
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© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̏ɽҰ؏ੑͱγϟʔσΟϯά w 3%#.4ͳͲͷػೳͰͳ͘ɺΞϓϦέʔγϣϯઃܭςΫχοΫɻ w σʔλΛ֨ೲ͢ΔثΛׂ͠ɺث୯ҐͰҰ؏ੑΛอূ͢Δɻ ҧ͏ثͲ͏͠ޓ͍ʹϩοΫͷӨڹΛड͚ͳ͍ɻ w
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© Chatwork ΞʔΩςΫνϟ#VJMEJOH4DBMBCMF4ZTUFNT ̑ɽҰ؏ੑͱՄ༻ੑͷબ w Ұ؏ੑͱՄ༻ੑτϨʔυΦϑͷؔʹ͋Δɻ w ೋऀҰͰͳ͘ɺ྆ऀͷؒͰͷόϥϯεɻ w ͲͪΒʹൺॏΛஔ͔͘ɺϏδωεཁ݅ɻ
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© Chatwork ͓ΘΓʹ 4DBMB"LLBΛΘͳ͍ͱͯ͠ɺ͜Ε͔ΒͷγεςϜ։ൃͰ ߟ͑ͳ͍ͱ͍͚ͳ͍՝ͱɺͦΕΛղͨ͘ΊͷҾ͖ग़͠ΛֶͿ͜ ͱ͕Ͱ͖ΔͷͰɺडߨΛΦεεϝ͠·͢ʂʂ 44
© Chatwork ͋Γ͕ͱ͏͍͟͝·ͨ͠ 45