新規事業を支える技術 / Technology for new business

■イベント
Developers Boost 2018
https://event.shoeisha.jp/devboost/20181215

■登壇概要
タイトル：新規事業を支える技術
登壇者：DSOC Development Group 木田悠一郎

▼Sansan Builders Box
https://buildersbox.corp-sansan.com/

Transcript

1. ৽نࣄۀ։ൃΛ ࢧ͑Δٕज़ 2018/12/15 Developers Boost Sansanגࣜձࣾ DSOC Development Group ΤϯδχΞ ໦ా༔Ұ࿠
2. ࣗݾ঺հ • ໦ా༔Ұ࿠ (mokuo) • Twitter : @mokuo_ • 92೥ੜ·Ε • ݸਓ։ൃͨ͠Γϒϩάॻ͍ͨΓ͠·͢ • ϙουΩϟετ΍ϥδΦΛΑ͘ௌ͖·͢
3. ܦྺ • 2018೥2݄ : Sansanגࣜձࣾೖࣾ • Eight ͷϑϩϯτΤϯυɾαʔόʔαΠυͷ։ൃ • React + Redux, Ruby on Rails • 2018೥6݄ : DSOC ʹҟಈ • GEESʢ໊ࢗͷσʔλԽγεςϜʣͷ։ൃɾӡ༻ • Ruby on Rails • ৽نࣄۀ։ൃ <= ຊ೔ͷ͓࿩ʂʂ
4. ΞδΣϯμ • ͸͡Ίʹ • ৽نࣄۀ։ൃΛࢧ͑Δٕज़ • ཁ݅ͷચ͍ग़͠ • ։ൃϓϩηεͷબఆ • ΞʔΩςΫνϟઃܭ • ٕज़બఆ • DBઃܭ • APIఆٛ • ը໘ઃܭ • ϑϩϯτΤϯυ࣮૷ • αʔόʔαΠυ࣮૷ • ·ͱΊ
5. ͸͡Ίʹ
6. ࣄۀ಺༰ʹ͍ͭͯ • େਓͷࣄ৘ʹΑΓɺݱ࣌఺Ͱ͸ɺ ৽نࣄۀͷத਎ʹ͍͓ͭͯ࿩Ͱ͖ ·ͤΜɻ • ࣄۀ಺༰ʹ৮Εͳ͍ൣғͰ͓࿩͞ ͍͖ͤͯͨͩ·͢ɻ
7. ຊ೔ͷ͓࿩ʹ͍ͭͯ • ৽نࣄۀ։ൃΛ୲౰͢Δ͜ͱʹͳͬͯɺ࣮ࡍ ʹࢲ͕औΓ૊ΜͰ͍Δ͜ͱΛ͓࿩͠·͢ɻ • ଞʹ΋༷ʑͳ΍Γํ͕͋Δͱࢥ͍·͢ɻ͋͘ ·Ͱɺࢀߟ৘ใͷҰͭͱͯ͠ฉ͍͍͚ͯͨͩ ·͢ͱ޾͍Ͱ͢ɻ
8. ৽نࣄۀ։ൃΛࢧ͑Δٕज़
9. લఏ • ։ൃ͢ΔγεςϜ͸ෳ਺ • ͦͷதͷج൫తͳγεςϜΛϝΠϯͰ୲౰
10. ৺͕͚͍ͯΔ͜ͱ
11. ࣄۀͷ੒௕͕ୈҰ • Ұੜݒ໋ͩ͜Θͬͯ࡞ͬͯ΋ɺചΕͳ͚Ε͹ɺ ιϑτ΢ΣΞ͸ࢮΜͰ͠·͍·͢ɻ • ࠓٻΊΒΕ͍ͯΔ΋ͷ͸Կͳͷ͔ɺৗʹߟ͑ ΔΑ͏ʹؾΛ͚͍ͭͯ·͢ɻ
12. ࣄۀͱٕज़ͷόϥϯεΛऔΔ • ͱ͸͍͑ɺεϐʔυ͚ͩΛ༏ઌ͢ΔͷͰ͸ͳ ͘ɺٕज़తͳҰઢ͸कΓ͍ͨͱߟ͍͑ͯ·͢ • ΋͠඼࣭΍։ൃ଎౓Λอͭ͜ͱ͕Ͱ͖Ε͹ɺ কདྷతʹ͸ϖΠͰ͖ΔͷͰ͸ͳ͍͔ɺͱࢥͬ ͨΓ͍ͯ͠·͢ɻ
13. ཁ݅ఆٛ
14. δϣΠϯͨ࣌͠ͷঢ়گ • ཁ͕݅·ͩ;Θͬͱ͍ͯ͠Δ͕ɺεέδϡʔ ϧ͸ܾ·͍ͬͯΔ
15. Ұ൪࠷ॳʹ΍ͬͨ͜ͱ • ཁ݅ͷચ͍ग़͠ • ݒ೦఺ͷղফ • ͬ͘͟Γͨ͠ݟੵ΋Γ • εέδϡʔϧௐ੔
16. ཁ݅ͷચ͍ग़͠ • ϓϩμΫτόοάϩάΛ࡞੒ • ϓϩμΫτΦʔφʔͱҰॹʹɺཁ݅Λεϓ Ϩουγʔτʹॻ͖ग़ͨ͠
17. ٙ໰఺ͷղফ • ٙ໰఺͕͋Δͱɺݟੵ΋Γ͕Ͱ͖ͳ͍ • ୭ʹ֬ೝ͢Δ͔Ͱ෼ྨ • ࣗ෼Ͱௐ΂Δ, PO, νʔϜA, νʔϜB, … • ҰͭҰͭ௵͍ͯͬͨ͠
18. ͬ͘͟Γͨ͠ݟੵ΋Γ • தؒ͘Β͍ͷ೉қ౓ͷλεΫΛ 3 ϙ Πϯτͱ͢Δ • 1, 3, 5, 8, 13 ͱϙΠϯτΛ෇͚ͯ૬ର ݟੵ΋ΓΛ࣮ࢪ • Πϝʔδ͠΍͍͢λεΫΛબͼɺԿ ͔͔࣌ؒΓͦ͏͔ݟੵ΋ͬͯΈΔ • શମͰ͔͔Δ೔਺Λܭࢉ
19. εέδϡʔϧௐ੔ • ཁ݅Λ࡟͗མͱͯ͠εέδϡʔϧʹؒʹ߹Θ ͤΔ͔ɺεέδϡʔϧΛ৳͹͔͢ަব • डୗ։ൃͳΒɺ2, 3ഒͷόοϑΝΛੵΈ͍ͨͱ ͜Ζ͕ͩɺࣗࣾαʔϏεͰ͋Ε͹ɺ͋Δఔ౓ ͸ॊೈʹௐ੔Ͱ͖Δ
20. ։ൃϓϩηεͷબఆ
21. બ୒ࢶ1 : ΢ΥʔλʔϑΥʔϧ • ઌʹεέδϡʔϧ͕ܾ·͍ͬͯΔͷͰ͋Ε͹ɺ ࠷ॳ͸΢ΥʔλʔϑΥʔϧͰ΋ྑ͍͔΋͠Ε ͳ͍ • σϝϦοτ : ཁٻ͕มΘͬͨͱ͖ʹɺॊೈʹର Ԡͮ͠Β͍
22. બ୒ࢶ2 : ΞδϟΠϧ • ΞδϟΠϧιϑτ΢ΣΞͷ12ͷݪଇ • Ձ஋ͷ͋Διϑτ΢ΣΞΛૣ͘ܧଓతʹఏڙ͠ ·͢ɻ • ཁٻͷมߋ͸ͨͱ͑։ൃͷޙظͰ͋ͬͯ΋׻ܴ ͠·͢ɻ => ৽نࣄۀʹ͸ద͍ͯ͠Δͱ൑அ
23. εΫϥϜΛ࠾༻ • վΊͯɺ͍͔ͭ͘ͷจݙΛಡΈ௚ͨ͠ • ΞδϟΠϧιϑτ΢ΣΞ։ൃએݴ • εΫϥϜΨΠυ • ࠓ·Ͱͷܦݧ΋౿·͑ͯɺ۩ମతͳ Πϕϯτ΋ఆٛ͞Ε͍ͯΔεΫϥϜ͕ ྑ͍ͱ൑அ
24. ܗࣜʹͩ͜ΘΓա͗ͳ͍ • ઐ໳༻ޠΛ࢖Θͳ͍ • ϓϩμΫτόοάϩά => λεΫ • εϓϦϯτϓϥϯχϯά => ܭը • ϨτϩεϖΫςΟϒ => ;Γ͔͑Γ • ϓϩμΫτόοΫϩά͸εϓϨουγʔτͰ؅ཧ • ϓϩμΫτΦʔφʔ͕࢖͍΍͍͢΋ͷΛ࠾༻ • υϥοά&υϩοϓͰॱ൪ΛೖΕସ͑ΒΕΔ͠ɺࠓͷͱ͜Ζ͸ࠔ͍ͬͯͳ͍
25. ΞʔΩςΫνϟઃܭ
26. લఏ • ୲౰͢ΔγεςϜ͸ Web ΞϓϦέʔγϣϯͷ ΈͰɺϞόΠϧΞϓϦ͸։ൃ͠·ͤΜɻ • ӡ༻ෛՙΛԼ͍͛ͨͱ͍͏ࢥ͍͕͋Γ·͢ɻ
27. ΞʔΩςΫνϟઃܭͷมભ ᶃ SPA + Firebase ⊗ ᶄ ϚΠΫϩαʔϏεΞʔΩςΫνϟ on GAE ⊗ ᶅ ࠷ॳ͸αʔϏε෼ׂ͸࠷খݶʹ͠Α͏ <= ݱࡏ
28. SPA + Firebase
29. SPA + Firebase • JavaScript ͷॲཧ͸ඞཁ • ϑϩϯτΤϯυͰҰఆҎ্ͷॲཧΛ͢ΔͳΒ SPA ʹͯ͠͠·ͬ ͨํ͕ྑ͍ʢͱࢥ͍ͬͯΔʣ • ͔͠͠ɺϑϩϯτΤϯυͱαʔόʔαΠυͷ྆ํΛ࣮૷͢Δ͜ͱ ͸޻਺͕͔͔Δ • Cloud Firestore ͳΒϑϩϯτΤϯυ͔Β௚઀ॻ͖ࠐΊΔ • ଟ͘ͷ API ͸࣮૷͢Δඞཁ͕ͳ͘ͳΔ…͸ͣɻ
30. ۩ମతʹ͸ • Firebase Authentication Ͱೝূ • Cloud Firestore, Cloud Storage ΁ͷॻ͖ࠐΈ Λݕ஌ͯ͠ɺCloud Functions Λ૸ΒͤΔ͜ͱ ͕Ͱ͖Δ • όοΫΤϯυͷॲཧ͸τϦΨʔத৺ʹ͢Δ
31. SPA + Firebase τϦΨʔ
32. ݒ೦఺ • ϐλΰϥεΠονతͳγεςϜʹͳΔ͜ͱ͕૝ఆ͞ΕΔ • কདྷతʹॲཧ͕ෳࡶʹͳͬͯདྷͨͱ͖ʹɺCloud Functions ͚ͩͰ৐Γ੾ΕΔͷ͔ • Firebase Authentication ͸ B2C ޲͖ʹݟ͑Δ • ࡉ͔͍ݖݶ؅ཧΛ͢ΔͨΊʹ͸ɺ࢓૊ΈΛߟ͑ͯࣗ લͰ࣮૷͢Δඞཁ͕͋Δ
33. ͦ΋ͦ΋΍Γ͔ͨͬͨ͜ͱ • ӡ༻ෛՙΛԼ͍͛ͨ • Firebase ʹͩ͜ΘΔඞཁ͸ͳ͍
34. ϚΠΫϩαʔϏεΞʔΩςΫνϟ on Google App Engine
35. Google App Engine • GCP ͕ఏڙ͢Δ PaaS • ϦΫΤετʹԠͯࣗ͡ಈͰεέʔϧ • ίϚϯυҰൃͰσϓϩΠͨ͠Βಈ͘ • Function ୯ҐͰͳ͘ɺαʔϏε୯ҐͰσϓϩΠ • FaaS ʹൺ΂ͯɺෳࡶͳॲཧʹ΋ରԠ͠΍͍͢͸ͣ
36. Microservices Architecture on Google App Engine • DB, Ωϡʔ ͳͲ͸ڞ༗
37. جຊͷߟ͑ํ • αʔϏεؒͷ΍ΓͱΓ͸جຊ Cloud Tasks Λܦ༝ • DB ͸Ҿ͖ଓ͖ Cloud Firestore Λ࠾༻ • ϑϩϯτΤϯυ͔Β௚઀ DB Λ৮Δ͜ͱ͸ͤͣɺAPIܦ༝Ͱ ΞΫηεͤ͞Δ • কདྷతʹ͸ɺ௚઀৮Δ͜ͱ΋͋Δ͔΋͠Εͳ͍ʢ؅ཧը໘ͱ ͔ʁʣ • ෳ਺αʔϏεͰίϨΫγϣϯ͸ڞ༗͠ͳ͍
38. σʔλϕʔε͸Կʹ͢Δ͔ • Cloud Datastore • ࣗಈεέʔϦϯάɾύϑΥʔϚϯεΛߟ͑Δ ͱɺGAE ʹద͍ͯ͠Δ • Cloud SQL for MySQL • Cloud SQL for PostgreSQL
39. Cloud Firestore Λબ୒ ެࣜυΩϡϝϯτ ↓↓ • Cloud Firestore ͱ Cloud Datastore ͷબ୒ > Cloud Firestore ͸ɺCloud Datastore ͷϦϒϥϯσΟϯάͱͳΔ ࣍ظϝδϟʔ όʔδϣϯͰ͢ • Cloud Firestore ΁ͷࣗಈΞοϓάϨʔυ • Cloud Datastore ͸ Cloud Firestore ʹΞοϓάϨʔυ͞ΕΔ༧ఆ
40. Cloud Firestore ͷϞʔυ • Cloud Firestore ͱ Cloud Datastore ͷબ୒ • Cloud Firestore in Datastore mode • Cloud Firestore in Native mode • ͦΕͧΕͷಛੑΛݟͯ൑அ
41. ϚΠΫϩαʔϏεΞʔΩςΫνϟ • ຊͰମܥతͳ஌ࣝΛೖΕ௚͢ • ಡΊ͹ಡΉ΄ͲɺGAE ͸Ϛ ΠΫϩαʔϏεͷͨΊͷ PaaS ͩͱࢥ͑ͯ͘Δ
42. αʔϏεؒͷ࿈ܞύλʔϯ
43. ࢖༻͢Δओͳ GCP ͷαʔϏε • App Engine • Cloud Storage • Cloud Pub/Sub • Cloud Tasks • Cloud Firestore
44. Cloud Pub/Sub Notifications for Cloud Storage Cloud Pub/Sub มߋΛݕ஌ Service A
45. Cloud Pub/Sub Service C Service B Service A Cloud Pub/Sub
46. Cloud Tasks Service A Service B
47. ϑϩϯτΤϯυ͔Β API Λୟ͘ Frontend Service Backend Service
48. ࠷ॳ͸αʔϏε෼ׂ͸࠷খݶ ʹ͢Δ
49. ࣌ظঘૣͳ෼ղ • ༷ʑͳ৘ใ΍ɺࣾ಺֎ͷΤ ϯδχΞͱͷର࿩Λ௨ͯ͠ɺ ࠷ॳ͔ΒαʔϏεΛ෼ׂ͢ Δͷ͸ةݥͱ൑அ • ·ͣ͸࠷খݶͰελʔτ͢ Δ༧ఆͰ͢
50. ඇಉظॲཧ • Cloud Tasks ͸ΤϯυϙΠϯτΛࢦఆͯ͠ Ωϡʔʹ٧ΊΔ Service A ࣗ෼ࣗ਎ʹ໭ͬͯ͘Δ
51. ٕज़બఆ
52. ϑϩϯτΤϯυ
53. ϑϩϯτΤϯυ • React + Redux • TypeScript • Next.js
54. React + Redux • Eight Ͱ React Λ࢖͍ͬͯΔ͜ͱ΋͋Γɺ׳Ε͍ͯΔɻ ݸਓతʹ Vue ΑΓ޷͖ • React ͳΒ Redux, Vue ͳΒ Vuex ͳͲɺFlux ΞʔΩς ΫνϟΛ࢖͏͜ͱ͸ɺ΄΅ඞਢͩͱࢥ͍ͬͯΔ • ΞϓϦέʔγϣϯશମͰ State Λڞ༗Ͱ͖Δ • ڊେͳ JSON Λ͍࣋ͬͯΔΠϝʔδ
55. TypeScript • ࢓ࣄ΍ݸਓ։ൃͰ JS Λॻ͍͍ͯͯɺܕ͕ͳ͍ਏ͞Λײ͍ͯ͡ ͨ • Promise ͕ೖͬͯ͘Δͱɺ΋͸΍Կ͕ฦ͖͍ͬͯͯΔͷ͔Θ ͔Βͳ͘ͳͬͨΓ͢Δ • ࣮ߦ࣌ΤϥʔͰ௚͢ɺΛ܁Γฦ͢ • TypeScirpt ΛೖΕͯɺIDE తͳԸܙΛड͚ΒΕΔ • ΋ͪΖΜɺٯʹେมͳ͜ͱ΋͋Δ
56. Next.js • pages/ ҎԼʹίϯϙʔωϯτஔ͘ͱࣗಈͰϧʔ ςΟϯάͯ͘͠ΕΔ • αʔόʔαΠυϨϯμϦϯά΋؆୯ • ಋೖ͓͍ͯͯ͠ѱ͍͜ͱ͸ͳ͍ͱ൑அ
57. αʔόʔαΠυ
58. αʔόʔαΠυ • Node.js • Express • TypeScript • swagger-node
59. αʔόʔαΠυͷݴޠΛԿʹ͢Δ͔ • ݸਓతʹ΋ɺ෦ॺͱͯ͠΋ɺಘҙͳͷ͸ Rails • ͔͠͠ɺݱ࣌఺ͷ Google App Engine ͷ Standard Environment Ͱ͸ Ruby ͕࢖͑ͳ͍
60. GAE ͷ2छྨͷ؀ڥʹ͍ͭͯ • Standard Environment • ݱ࣌఺Ͱ͸ Python, Java, PHP, Go, Node.js ͷΈ • Flexible Environment • ্هʹՃ͑ͯ .NET, Ruby, ΧελϜϥϯλΠϜ ͕࢖͑Δ
61. ֤؀ڥͷൺֱʢൈਮʣ • https://cloud.google.com/appengine/docs/the-appengine-environments ػೳ 4UBOEBSE
    &OWJSPONFOU 'MFYJCMF
    &OWJSPONFOU Πϯελϯεىಈ࣌ؒ ϛϦඵ ෼ ϦΫΤετͷ࠷େλΠϜ Ξ΢τ ඵ ෼ εέʔϦϯά खಈɺجຊɺࣗಈ खಈɺࣗಈ ΧελϚΠζՄೳͳॲཧ ελοΫ º ˓ʢ%PDLFSpMF
    ͷΧε λϚΠζͰߏஙʣ ྉۚ Πϯελϯε࣌ؒ
    ʹجͮ͘ W$16ɺϝϞϦɺӬଓσ ΟεΫͷ࢖༻ྔʹجͮ͘
62. ஫໨͢΂͖ҧ͍ • Πϯελϯεىಈ࣌ؒ • ྉۚ
63. جຊ͸ Standard Environment • ඞཁͳ͚࣌ͩ Flexible Environment ʹ͢Δ • ࠓճ͸ը૾ॲཧʹඞཁͳϥΠϒϥϦΛ࢖͏ ͨΊʹɺGAE/FE Ͱ Docker Λ࢖༻
64. Node.js Λ࠾༻ • ݸਓతʹɺRuby ͷ࣍ʹಘҙͳݴޠ͸ JS • Node.js ΋ AWS Lambda, Google Cloud Functions Ͱ͸࢖ͬͨ͜ͱ͕͋Δ • ࠓޙδϣΠϯ͢Δϝϯόʔʹ͸ɺϑϩϯτΤϯ υ΋αʔόʔαΠυ΋ݟͯ΄͍͠ͱ͍͏ࢥ͍΋ ͋Δ
65. ϑϨʔϜϫʔΫ͸ Express • Node.js ͰҰ൪࢖ΘΕ͍ͯΔϑϨʔϜϫʔΫ ͸ɺExpress ͩͱࢥΘΕΔ • ܰྔͳϑϨʔϜϫʔΫͰɺϚΠΫϩαʔϏεʹ ͸ྑͦ͞͏
66. TypeScript • ϑϩϯτΤϯυͱಉ༷ʹ TypeScript Λ࢖༻
67. swagger-node • Swagger Ͱ API ఆٛΛॻ͘ͱɺϧʔςΟϯά΍ϦΫΤε τͷόϦσʔγϣϯΛͯ͘͠ΕΔ • ࣮ଶ͸ swagger-express-mw • ϝϯς͕ߦ͖ಧ͍͍ͯͳ͍ײ͡΋͢ΔͷͰɺཁ஫ҙ • swagger editor ΋ೖ͍ͬͯΔ͕ɺόʔδϣϯ͕ݹ͍ • swagger project create ίϚϯυ͸ࢀߟఔ౓ʹ࢖༻͢Δ
68. CI • طʹࣾ಺Ͱར༻͍ͯͯ͠ɺಛʹ՝୊ײ΋ͳ͍ͷ ͰɺCircleCI, Sider Λ࢖༻ • CircleCI Ͱ Jest • Sider Ͱ TSLint • CD ΋΍Γ͍ͨ
69. DBઃܭ
70. Cloud Firestore • NoSQL υΩϡϝϯτࢦ޲σʔλϕʔε • جຊతʹ͸ɺRDB ͷΑ͏ͳਖ਼نԽ͸͠ͳ͍ • ؔ࿈͸αϒίϨΫγϣϯͱ͍͏ܗͰωετ͢ Δ
71. εϓϨουγʔτͰઃܭ • ΋ͬͱྑ͍΍Γํ͕͋Ε͹ڭ͍͑ͯͩ͘͞… • ↓ Πϝʔδ
72. APIઃܭ
73. RESTful API • Rails ͷϧʔςΟϯάΛࢀߟ • Rails ͷϧʔςΟϯά͸ڧྗ • `resouces: photos` ͷΑ͏ʹॻ͚ͩ͘ͰɺϦ ιʔεϕʔεͷنଇతͳϧʔςΟϯά͕Ͱ͖Δ • Rails ͷϧʔςΟϯά | Rails ΨΠυ ࢀর
74. Swagger Λ࢖༻ • APIυΩϡϝϯτͷσϑΝΫτελϯμʔυʹ ͳ͖͍ͬͯͯΔͱࢥΘΕΔ • swagger-express-mw ͰϧʔςΟϯάͱϦΫΤ ετͷόϦσʔγϣϯ͕Ͱ͖Δ͜ͱ΋େ͖͍ • ͍ͣΕʹͤΑɺAPIυΩϡϝϯτ͸ඞཁ
75. GraphQL ͸ʁ • ϑϩϯτ <=> αʔόʔؒ͸ GraphQL Ͱ΋ྑͦ͞ ͏ • طʹɺࣗ෼ͱͯ͠΋෦ॺͱͯ͠΋͋·Γ࢖ͬͯ͜ͳ ͔ٕͬͨज़Λ੝ΓࠐΜͰ͍Δ • GCP, TypeScript, Node.js, SPA, Atomic Design… • ࠓճ͸ݟૹΓ
76. ίϯϙʔωϯτઃܭ
77. Atomic Design • σβΠϯʹΦϒδΣΫτࢦ޲త ͳߟ͑ํΛऔΓೖΕͨײ͡ • UI ͷมߋʹڧ͘ɺίϯϙʔωϯ τΛ࠶ར༻͠΍͍͢
78. ϑϩϯτΤϯυ࣮૷
79. ίϯϙʔωϯτ
80. Storybook • Storybook Λ࢖͏͜ͱͰɺίϯϙʔωϯτ͝ͱʹಈ࡞ ֬ೝ͠ͳ͕Β։ൃͰ͖Δ • Storyshot ͰεφοϓγϣοτΛऔΔ͜ͱ΋Ͱ͖Δ • Storyshot ʹؔͯ͠͸ɺTypeScript, Next.js ΋࢖༻͠ ͍ͯΔ͔Β͔ɺΤϥʔ͕ग़ͯղফͰ͖ͣ… • ଞͷํ๏Λݕ౼த
81. Redux
82. Actions • Flux Standard Action (FSA) ʹै͏͜ͱ͕ਪ঑͞Εͯ ͍Δ • FSA ʹԊͬͨϥΠϒϥϦ͸͍͔ͭ͋͘Δ • redux-actions Λ࢖͓͏ͱ͕ͨ͠ɺTypeScript ͱ ૬ੑ͕ѱ͔ͬͨʢܕఆ͕ٛෆ׬શʣ • typescript-fsa Λ࠾༻
83. Reducers • Immutable.js Λ࢖༻ • State ͕ωετͨ͠Γෳࡶʹͳͬͯ͘ΔͱɺReducer ͕ େมͳ͜ͱʹͳΔ • Object.assign() ΋ਏ͍ • Immutable.js ͷ Record Λ࢖͏͜ͱͰɺϞσϧʹϝ ιουΛੜ΍ͯ͠ Reducer ΛγϯϓϧʹͰ͖Δ
84. ࣗಈςετ • Jest Λ࠾༻ • RSpec ϥΠΫͳͷͰɺRuby ग़਎ऀ͸ೃછΈ΍͍͢͸ͣ • ΦʔϧΠϯϫϯͳͷ΋ྑ͍ • Actions ͱ Reducers ͷςετ͸ඞͣॻ͘ • ίϯϙʔωϯτ΋ɺϩδοΫΛॻ͍ͨϝιου͸ςετ͢Δ • ίϯϙʔωϯτࣗମͷςετ͸໛ࡧத
85. αʔόʔαΠυ࣮૷
86. Express ͷ͓࡞๏͕Θ͔Βͳ͍
87. ௐ΂ͯݟ͖͑ͯͨಛ௃ • Express͸ɺϧʔςΟϯάͱϛυϧ΢ΣΞ͕ جຊతͳ֓೦Β͍͠
88. جຊํ਑ • Swagger Ͱ API ఆٛ • ίϯτϩʔϥʔʹϝιουΛ࣮૷ • swagger-node ͰϧʔςΟϯάɺϦΫΤετͷόϦσʔγϣϯΛ͠ ͯ͘ΕΔ • DB ·ΘΓͷॲཧ͸ϞσϧͰߦ͏ • ෳࡶͳॲཧ͸Ϟδϡʔϧʹ੾Γग़͢ • ೝূɺΤϥʔϋϯυϦϯάͳͲ͸ middleware Ͱߦ͏
89. ࣗಈςετ • ϑϩϯτΤϯυͱಉ͘͡ Jest • Jest ͸σϑΥϧτͰฒߦͰςετ͕૸ΔͷͰૣ͍͕… • CI ༻ͷϓϩδΣΫτΛ࡞ͬͯ͸͍Δ͕ɺFirestore ͸Ұͭ • ςετಉ͕࢜ׯবͯ͠ɺͨ·ʹམͪΔ => ྑ͘ͳ͍ • ରԠࡦ͸ݕ౼த • কདྷతʹ͸ E2E ςετ΋͋Δఔ౓ࣗಈԽ͍ͨ͠
90. ·ͱΊ
91. ·ͱΊ • ͦͷࣄۀʹ͓͍ͯɺԿ͕ٻΊΒΕ͍ͯΔ͔ߟ ͑Δ • ٕज़తʹ௒͑ͯ͸͍͚ͳ͍Ұઢ͸कΔ • ΑΓྑ͍બ୒Λ͢ΔͨΊʹɺ೔ࠒͷ஁࿉Λܽ ͔͞ͳ͍
92. ΤϯδχΞืूʂʂ • Sansan Ͱ͸ɺੈքΛม͑Δʮग़ձ͍ʯΛ ੜΈग़͢ΤϯδχΞΛืू͍ͯ͠·͢ɻ • Twitter ͷ DM ͳͲͰ΋ߏ͍·ͤΜͷͰɺؾܰ ʹ͝࿈བྷ͍ͩ͘͞ɻΧδϡΞϧʹ͓࿩͠·͠ΐ ͏ʂʂ