Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
BFF Antipattern
Search
Yosuke Furukawa
PRO
June 07, 2018
Programming
7
14k
BFF Antipattern
2018/06/07 に発表した BFF アンチパターンの話です。
Yosuke Furukawa
PRO
June 07, 2018
Tweet
Share
More Decks by Yosuke Furukawa
See All by Yosuke Furukawa
Welcome JSConf.jp 2024
yosuke_furukawa
PRO
1
3.8k
tc39 x jsconf.jp Panel Discussion 2024
yosuke_furukawa
PRO
0
190
Removing Corepack
yosuke_furukawa
PRO
9
1.5k
JavaScript Runtime とはなにか
yosuke_furukawa
PRO
15
2.6k
Strip Types と Storage
yosuke_furukawa
PRO
4
370
Module Harmony について
yosuke_furukawa
PRO
3
1.6k
LTのやり方
yosuke_furukawa
PRO
16
2.4k
AppRouter Panel Talk
yosuke_furukawa
PRO
3
750
Node.js v22 で変わること
yosuke_furukawa
PRO
13
5.8k
Other Decks in Programming
See All in Programming
クリーンアーキテクチャから見る依存の向きの大切さ
shimabox
4
920
Djangoアプリケーション 運用のリアル 〜問題発生から可視化、最適化への道〜 #pyconshizu
kashewnuts
1
260
『GO』アプリ データ基盤のログ収集システムコスト削減
mot_techtalk
0
140
From the Wild into the Clouds - Laravel Meetup Talk
neverything
0
100
Kubernetes History Inspector(KHI)を触ってみた
bells17
0
250
Go 1.24でジェネリックになった型エイリアスの紹介
syumai
2
260
PRレビューのお供にDanger
stoticdev
1
220
Conform を推す - Advocating for Conform
mizoguchicoji
3
710
Serverless Rust: Your Low-Risk Entry Point to Rust in Production (and the benefits are huge)
lmammino
1
140
Java Webフレームワークの現状 / java web framework at burikaigi
kishida
9
2.2k
Formの複雑さに立ち向かう
bmthd
1
900
密集、ドキュメントのコロケーション with AWS Lambda
satoshi256kbyte
1
210
Featured
See All Featured
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
251
21k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
10
1.3k
Unsuck your backbone
ammeep
669
57k
Measuring & Analyzing Core Web Vitals
bluesmoon
6
250
How STYLIGHT went responsive
nonsquared
98
5.4k
Building Adaptive Systems
keathley
40
2.4k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
45
9.4k
Put a Button on it: Removing Barriers to Going Fast.
kastner
60
3.7k
Gamification - CAS2011
davidbonilla
80
5.1k
Writing Fast Ruby
sferik
628
61k
Code Review Best Practice
trishagee
67
18k
The Power of CSS Pseudo Elements
geoffreycrofte
75
5.5k
Transcript
BFFΞϯνύλʔϯ UIT in LINE
Twitter: @yosuke_furukawa Github: yosuke-furukawa
!*5Ͱ#''ͷهࣄΛॻ͍ͯ·͢ɻ
BFF is … • Backend For Frontends #SPXTFS #'' .JDSP4FSWJDF
.JDSP4FSWJDF .JDSP4FSWJDF
None
༁όοΫΤϯυͱϑϩϯτΤϯυΛ͚Δࣄͦͷ ͷ͕Ξϯνύλʔϯ
BFFΞϯνύλʔϯ
BFFΛ2࣮ؒફͯ͠ ࣮ࡍʹؕͬͨ ΞϯνύλʔϯΛհ
͡Ίʹ ॻ͍ͯͯBFFΞϯνύλʔϯ ͱ͍͏͔৫Ξϯνύλʔϯ Έ͍ͨʹͳͬͯ͠·ͬͨ
ΤϯδχΞ৫ͷট • Chapter 5-6: ৫ઃܭͱΞʔΩςΫνϟ ࣮ͷͱ͜ΖγεςϜΞʔΩςΫνϟͱ ৫ઃܭຊ࣭తʹಉ͡ͷͰ͋Δɻ
BFF ϑϩϯτΤϯυͱόο ΫΤϯυͷՍ͚ڮͰ͋Γɺ ৫ͷ߹
BFFΞϯνύλʔϯ ͦͷ1 εύʔείϛϡχέʔγϣϯ
BFFΞʔΩςΫνϟಉ͕࢜ ૄʹͳΔ͕ɺ ίϛϡχέʔγϣϯ·Ͱૄ(sparse) ʹͳͬͯ͠·͏έʔε
None
ྫ1: ςʔϒϧؙݟ͑ API JE OBNF BHF
#'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF \ pSTU@OBNFGPP MBTU@OBNFCBS SPMFIPHF
SPMFGVHB ^
#'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF \ pSTU@OBNFGPP MBTU@OBNFCBS SPMFIPHF
SPMFGVHB ^ %#ͷεΩʔϚ͕ಁ͚ͯݟ͑Δʂʂʂʂ
SELECTจ͕ಁ͚ͯݟ͑Δɻ ୯७ͳέʔεͳΒͦΕͰྑ͍͕ɺ snake => camelͷมJOIN͠ ͨεΩʔϚ͕ͦͷ··ݟ͑ͯΔͷ NGɻɻɻ
ྫ2: N+1 Query API
#'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF JET< > VTFST<\
JE OBNFGPP ^ \ JE OBNFCBS ^>
#'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF JET< > /ճΫΤϦʔ͛ͯΔɻɻɻɻ
VTFS\ JE OBNFCBS ^ VTFS\ JE OBNFCBS ^ VTFS\ JE OBNFCBS ^ VTFS\ JE OBNFCBS ^ VTFS\ JE OBNFCBS ^ VTFS\ JE OBNFGPP ^
ϚΠΫϩαʔϏε͔ͩΒͱ͍ͬͯ APIΛ؆ૉʹ͍͍ͯ͠༁͡Όͳ͍ɻ ݁Ռ:1ϖʔδදࣔ͢Δͷʹ3secͱ ͔͔͔Δ
શ෦ίϛϡχέʔγϣϯΛͪΌ Μͱऔͬͯͳ͍͔Βى͖Δ • όοΫΤϯυBFF͔ͩΒͱݴͬͯϏδωεϩ δοΫαʔόαΠυʹ͋ΔͷΛΕͳ͍Ͱཉ͠ ͍ʢαϘΒͳ͍Ͱ͘Εʣ • ϑϩϯτΤϯυͲ͏͍͏API͕΄͍͠ͷ͔ͪΌ ΜͱόοΫΤϯυʹཁٻ͢ΔΑ͏ʹͯ͠ཉ͍͠ ʢΩϟϝϧ͕ཉ͍͠ͱ͔͜͜arrayͰ΄͍͠ͱ͔
ͪ͜ΒଆͰͪΌΜͱݴ͏͖ʣ
શ෦ίϛϡχέʔγϣϯΛͪΌ Μͱऔͬͯͳ͍͔Βى͖Δ • όοΫΤϯυBFF͔ͩΒͱݴͬͯϏδωεϩ δοΫαʔόαΠυʹ͋ΔͷΛΕͳ͍Ͱ ཉ͍͠ • ϑϩϯτΤϯυͲ͏͍͏API͕΄͍͠ͷ͔ ͪΌΜͱόοΫΤϯυʹཁٻ͢ΔΑ͏ʹͯ͠ ཉ͍͠
ΞʔΩςΫνϟૄͰؔରͰ͋Γɺ ίϛϡχέʔγϣϯີͰͳ͚ΕͳΒͳ͍
ΒͲ͏ͯ͠Δ͔
ΒͲ͏ͯ͠Δ͔
ϑϩϯτΤϯυͱόοΫΤϯ υͷର͢ΔͨΊͷϞοΫαʔ όΛ࡞ΓɺೝࣝᴥᴪΛੜ ·ͳ͍Α͏ʹ͍ͯ͘͠ɻ
None
BFFΞϯνύλʔϯ ͦͷ2 ΠϯϑϥϨεϙϯγϏϦςΟ
BFFϑϩϯτΤϯυͷͨΊͷαʔ όͳͷʹɺΠϯϑϥɾӡ༻όοΫ Τϯυʹԡ͚ͯ͠͠·͏έʔε
Πϯϑϥɾӡ༻ #SPXTFS #'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF ͦͦ͜ͷαʔό୭͕ ݟΔͷʁϑϩϯτʁόοΫ Τϯυʁ
Πϯϑϥɾӡ༻ #SPXTFS #'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF ৽͍͠ͷΛ࡞Δͷʹӡ༻ όοΫΤϯυͤʁ
A. શһ
Πϯϑϥɾӡ༻ • ӡ༻ͳΜͯͲ͔͚͕ͬͪͩ͢ΔΑ͏ͳΜ͡Όͳ ͍ • ϑϩϯτ։ൃ͢ΔͳΒαʔϏεͷোʹහײ ʹͳΔ͖ͩ͠ɺམͪͨΓͨ͠ΒݟΕΔΑ͏ʹͳ Δ͖ • όοΫΤϯυϑϩϯτͷίʔυ͕Θ͔Βͳ͍͔
Βͱݴͬͯܟԕͪ͠Ό͍͚ͳ͍
Πϯϑϥɾӡ༻ • ӡ༻ͳΜͯͲ͔͚͕ͬͪͩ͢ΔΑ͏ͳΜ͡Όͳ ͍ • ϑϩϯτ։ൃ͢ΔͳΒαʔϏεͷোʹහײ ʹͳΔ͖ͩ͠ɺམͪͨΓͨ͠ΒݟΕΔΑ͏ʹͳ Δ͖ • όοΫΤϯυϑϩϯτͷίʔυ͕Θ͔Βͳ͍͔
Βͱݴͬͯܟԕͪ͠Ό͍͚ͳ͍ ϑϩϯτΤϯυͱόοΫΤϯυʹ͚͔ͨΒͱݴͬͯαʔ ϏεҰͭɻαʔϏεͷ࣭Λ্͛Δͷશһٿ
BFFΞϯνύλʔϯ ͦͷ3 ϏοάόϯδϣΠϯτ
࠷ޙͷ࠷ޙʹͳ͔ͬͯΒόοΫΤϯ υͱϑϩϯτΤϯυΛ݁߹͢Δͱ େମࢮ͵
Πϯϑϥɾӡ༻ #SPXTFS #'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF ϑϩϯτΤϯυNPDL"1* Ͱಈ͍ͯΔΑ͏ʹͳ͖ͬͯ ͨɻ
Πϯϑϥɾӡ༻ #SPXTFS #'' .JDSP4FSWJDF .JDSP4FSWJDF .JDSP4FSWJDF όοΫΤϯυఆ͍ͯ͠ ΔϦΫΤετύε͢ΔΑ ͏ʹͳͬͨɻ
ظؒ͋ͱͪΐͬͱɺ࠷ޙͷ࠷ޙʹ ݁߹ͩʂʂʂʂ
ʊਓਓਓਓਓਓʊ ʼɹવͷࢮɹʻ ʉ^Y^Y^Y^Y^ʉ
ϏοάόϯδϣΠϯτ • ઈରʹAPIͷϦΫΤετɾϨεϙϯεఆ௨ Γ͡Όͳ͍ɻ • ࣮֬ʹఆ֎ͷى͖Δɻ • ϦΫΤετͷܕ͕string, integer, Ϩεϙϯεͷ
status code͕ҧ͏ etc
ΒͲ͏ͯ͠Δ͔
+ Proxy
ग़དྷ͍ͯΔͱ͜Ζ͔Βঃʑʹ ຊʹ͍ͯ͘͠ #SPXTFS #'' 3FBM.JDSP4FSWJDF .PDL 'BLF .PDL 'BLF
ग़དྷ͍ͯΔͱ͜Ζ͔Βঃʑʹ ຊʹ͍ͯ͘͠ #SPXTFS #'' 3FBM.JDSP4FSWJDF .PDL 'BLF .PDL 'BLF ͋Δఔϑϩϯτઌߦͯ͠ɺը໘Λঃʑʹຊʹ͍ͯ͠
͘ελΠϧɻͦ͏͢Δͱاըʹಈ͖Λ͍͑͢
·ͱΊ
·ͱΊ • εύʔείϛϡχέʔγϣϯʢίϛϡχέʔγϣϯ͕ૄ͔ʹͳΔέʔεʣ • ΞʔΩςΫνϟૄʹͯ͠Α͍͕ɺίϛϡχέʔγϣϯૄʹͯ͠ ͍͚ͳ͍ • ΠϯϑϥϨεϙϯγϏϦςΟʢΠϯϑϥͷΛ࣋ͭʣ • ΠϯϑϥΛݟΔͷόοΫΤϯυ͚ͩʹ͋ΒͣɺશһͰݟΔඞཁ͕͋
Δ • ϏοάόϯδϣΠϯτʢ࠷ޙͷ࠷ޙʹͳ͔ͬͯΒ݁߹ςετʣ • ࠷ޙͷ࠷ޙʹ݁߹ɻͰͳ͘ग़དྷ্͕Γ࣍ୈɺঃʑʹ݁߹͍ͯ͘͠
·ͱΊ • ϑϩϯτΤϯυ/όοΫΤϯυͰͳ͘ɺ • ϑϩϯτΤϯυόοΫΤϯυ • BFF Backend For
Frontend Ͱͳ͘ɺ
·ͱΊ • ϑϩϯτΤϯυ/όοΫΤϯυͰͳ͘ɺ • ϑϩϯτΤϯυόοΫΤϯυ • BFF Backend For
Frontend Ͱͳ͘ɺ • Best Friends Forever Ͱ͋Γ·͢Α͏ʹɻ
·ͱΊ • ϑϩϯτΤϯυ/όοΫΤϯυͰͳ͘ɺ • ϑϩϯτΤϯυόοΫΤϯυ • BFF Backend For
Frontend Ͱͳ͘ɺ • Best Friends Forever Ͱ͋Γ·͢Α͏ʹɻ ϦΫϧʔτςΫϊϩδʔζͰɺ#''ΛͬͯαʔϏε ΛͬͯΈ͍ͨΤϯδχΞΛ΅͠ΎʢҎԼུʣ