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
3.6k
tc39 x jsconf.jp Panel Discussion 2024
yosuke_furukawa
PRO
0
180
Removing Corepack
yosuke_furukawa
PRO
9
1.4k
JavaScript Runtime とはなにか
yosuke_furukawa
PRO
15
2.6k
Strip Types と Storage
yosuke_furukawa
PRO
4
360
Module Harmony について
yosuke_furukawa
PRO
3
1.6k
LTのやり方
yosuke_furukawa
PRO
16
2.3k
AppRouter Panel Talk
yosuke_furukawa
PRO
3
740
Node.js v22 で変わること
yosuke_furukawa
PRO
13
5.6k
Other Decks in Programming
See All in Programming
ASP.NET Core の OpenAPIサポート
h455h1
0
140
php-conference-japan-2024
tasuku43
0
440
令和7年版 あなたが使ってよいフロントエンド機能とは
mugi_uno
12
5.7k
Rubyでつくるパケットキャプチャツール
ydah
0
230
ecspresso, ecschedule, lambroll を PipeCDプラグインとして動かしてみた (プロトタイプ) / Running ecspresso, ecschedule, and lambroll as PipeCD Plugins (prototype)
tkikuc
2
2.1k
自動で //nolint を挿入する取り組み / Gopher's Gathering
utgwkk
1
130
선언형 UI에서의 상태관리
l2hyunwoo
0
270
React 19でお手軽にCSS-in-JSを自作する
yukukotani
5
580
PicoRubyと暮らす、シェアハウスハック
ryosk7
0
240
watsonx.ai Dojo #6 継続的なAIアプリ開発と展開
oniak3ibm
PRO
0
190
AWSのLambdaで PHPを動かす選択肢
rinchoku
2
400
asdf-ecspresso作って 友達が増えた話 / Fujiwara Tech Conference 2025
koluku
0
1.5k
Featured
See All Featured
VelocityConf: Rendering Performance Case Studies
addyosmani
327
24k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
232
17k
Producing Creativity
orderedlist
PRO
343
39k
Writing Fast Ruby
sferik
628
61k
Building Better People: How to give real-time feedback that sticks.
wjessup
366
19k
Designing for Performance
lara
604
68k
Practical Orchestrator
shlominoach
186
10k
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
10
880
The MySQL Ecosystem @ GitHub 2015
samlambert
250
12k
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
45
2.3k
Reflections from 52 weeks, 52 projects
jeffersonlam
348
20k
Build your cross-platform service in a week with App Engine
jlugia
229
18k
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