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You Need to know SSR
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Yosuke Furukawa
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June 17, 2017
Programming
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You Need to know SSR
ng-japan で発表した Server Side Rendering の資料です。
Yosuke Furukawa
PRO
June 17, 2017
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Transcript
You need to know SSR 2017/06/17 ng-japan @ Shinagawa MS
Office
Twitter: @yosuke_furukawa Github: yosuke-furukawa
8FC %#13&44݄߸
None
None
͍ͭ3FBDUͷਓ͚ͩͲ "OHVMBSʹࠢചΓ·ͨ͠ʂʂ
Server Side Rendering
Server Side Rendering 4FSWFS 1BHF3FRVFTU $PNQPOFOUT 5FNQMBUFT 'FUDI%BUB %#"1* 3FOEFS)5.-
(FUQBHFQBSUT
Server Side Rendering 4FSWFS 1BHF3FRVFTU $PNQPOFOUT 5FNQMBUFT 'FUDI%BUB %#"1* 3FOEFS)5.-
(FUQBHFQBSUT 3FOEFSFS $PNQPOFOUT 5FNQMBUFT 3FOEFS)5.-XJUITBNF DMJFOUTFSWFSSFOEFSMPHJD
Why we need Server Side Rendering?
SEO
SEO
SEO Ϋϩʔϥ͕+4Λ࣮ߦͰ͖Δͱ ͍͑ɺͦͷ+4͕ͪΌΜͱಈ͘อ ূͳ͍ɻ
SEOॏཁɺͰຊ࣍
First View Performance
ͦͦFirst ViewͱҰޱʹ ݴͬͯछྨ͕͋Δ /BWJHBUJPO4UBSU 'JSTU1BJOU 'JSTU$POUFOUGVM 1BJOU Loading.. 'JSTU.FBOJOHGVM 1BJOU
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE
First View Performance • SSR ʹ͓͚Δ First View ͷվળͱɺ͜ͷ First
Meaningful Paint ·ͰΛࢦ͢ɻ /BWJHBUJPO4UBSU 'JSTU1BJOU 'JSTU$POUFOUGVM 1BJOU Loading.. 'JSTU.FBOJOHGVM 1BJOU
First View Performance • First Meaningful PaintҎ߱ͷվળService WorkerHTTP2ͳͲผͳΓํ͕͋Δɻ 'JSTU.FBOJOHGVM 1BJOU
7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE
Client Side Rendering ͷΈͰͷಈ͖
Client Side Rendering ͷΈͷ ߹ • First Meaningful Paint ͱ
Time To Interact ͷ λΠϛϯά͕΄ͱΜͲಉ͡ɻ 'JSTU.FBOJOHGVM1BJOU 5JNF5P*OUFSBDUJWF +4MPBEFE 'JSTU$POUFOUGVM 1BJOU Loading..
Client Side Rendering ͷΈͷ ߹ • ݴ͍͑ΔͱɺFirst Contentful Paint͔ΒFirst Meaningful
Paint ·Ͱ͕͘ͳΔɻ 'JSTU.FBOJOHGVM1BJOU 5JNF5P*OUFSBDUJWF +4MPBEFE 'JSTU$POUFOUGVM 1BJOU Loading..
Client Side Rendering ͷΈͷ ߹ • ݴ͍͑ΔͱɺFirst Contentful Paint͔ΒFirst Meaningful
Paint ·Ͱ͕͘ͳΔɻ 'JSTU.FBOJOHGVM1BJOU 5JNF5P*OUFSBDUJWF +4MPBEFE 'JSTU$POUFOUGVM 1BJOU Loading.. Ϣʔβʔݟ͔͑ͯΒૢ࡞͢Δ 'JSTU.FBOJOHGVM1BJOU͕ग़͔ͯΒ*OUFSBDU ͢Δ ͷͰɺ͜ͷ$MJFOU4JEF3FOEFSJOH͚ͩͰ࣌ؒతʹແବ͕ଟ͍ɻ
ͦ͜Ͱ Server Side Rendering
/BWJHBUJPO4UBSU 'JSTU1BJOU 'JSTU$POUFOUGVM 1BJOU Loading.. 'JSTU.FBOJOHGVM 1BJOU ࠷ॳ͔ΒσʔλΛຒΊࠐΜͩঢ়ଶͰ)5.-ʹ͢Δ ʢ4FSWFS4JEF3FOEFSJOHʣ
DEMO
͡Ό͋ SSR ʹ͢Ε͍͍͔ͱ ͍͏ͱ࣮ͦ͏୯७Ͱͳ͍
Server Side Rendering Critical Points • HTMLੜ͕CPUΠϯςϯγϒλεΫʹͳΔɻ • ·ͨNode.jsͰ࣮ߦ͢ΔͱϝΠϯϧʔϓΛϒϩοΫ͢Δ(গͳ͘ͱݱ࣌ ͷReactͰɺAngularಉ༷)ɻ
• ͔ͨ͠͠ΒϒϩοΩϯά࣍ͷReactͷΞοϓσʔτͰͳΜͱ͔ͳ Δ͔(https://github.com/facebook/react/pull/9710)ʁ • CPUΠϯςϯγϒλεΫʹͳΓɺCPUෛՙ͕ߴ·Δͱαʔό͕ॲཧ͖͠ Εͳ͘ͳΔʢෛՙܰݮ͢ΔͨΊʹαʔό૿͞ͳ͍ͱ͍͚ͳ͘ͳΔʣ
Server Side Rendering Critical Points https://speakerdeck.com/yoshidan/nodefest2016
Server Side Rendering Critical Points
Server Side Rendering Critical Points ComponentࢦͰ͖ͪΜͱComponentΛ͚ͯ ࣮͢Ε͢Δ΄ͲHTMLੜίετ͕ߴ͘ͳΔ
Server Side Rendering Critical Points • React ͷ߹ɿ • renderToString
ͷ࣌ʹҰͭҰͭͷComponentͷΠϯελϯεΛੜ͠ɺreact- idΛ߱Γɺ࠷ޙʹHTMLͷνΣοΫαϜΛܭࢉͤ͞Δඞཁ͕͋Δ(Clientͷ Virtual DOM ͱͷ߹ੑΛ߹ΘͤΔͨΊ)ɻ • Angular ͷ߹ɿ • VDOMͰͳ͍ͷͰɺidΛৼΔඞཁͳ͍͕ɺrenderModuleFactory ͷ࣌ʹຖ ճHTMLύʔεॲཧͯ͠ΔʢϓϦίϯύΠϧ͢ΕίετݮΔʣ • rxjs ͷ subscribeToResult ͕ॏͦ͏ (Routerͷॲཧ?)
Server Side Rendering Critical Points • React ͷ߹ɿ • renderToString
ͷ࣌ʹҰͭҰͭͷComponentͷΠϯελϯεΛੜ͠ɺ react-idΛ߱Γɺ࠷ޙʹHTMLͷνΣοΫαϜΛܭࢉͤ͞Δඞཁ͕͋Δ (ClientͷVirtual DOM ͱͷ߹ੑΛ߹ΘͤΔͨΊ)ɻ • Angular ͷ߹ɿ • VDOMͰͳ͍ͷͰɺidΛৼΔඞཁͳ͍͕ɺrenderModuleFactory ͷ ࣌ʹຖճHTMLύʔεॲཧͯ͠Δʢಉ͘͡ComponentࢦͰׂ͞ΕΕ ͞ΕΔ΄ͲɺCPUෛՙ͕ߴͦ͏ʣ ͭ·ΓɺͲͬͪಉ͡Α͏ʹCPUෛՙ͕͔͔Δɻ
ݱ࣮ղ
ݱ࣮Ͱͷઓུ2ͭ • HTMLੜ݁ՌΛΩϟογϡͤ͞Δ • above the fold (εΫϩʔϧ͠ͳ͍ͰݟΕΔൣ ғ)͚ͩHTMLΛϨϯμϦϯάͯ͠ฦ͢
ݱ࣮Ͱͷઓུ2ͭ • HTMLੜ݁ՌΛΩϟογϡͤ͞Δ • above the fold (εΫϩʔϧ͠ͳ͍ͰݟΕΔൣ ғ)͚ͩHTMLΛϨϯμϦϯάͯ͠ฦ͢ ͨͩ͜͠Ε྆ํڞɺॾਕͷ
Ωϟογϡ
Ωϟογϡ • ੜࡁΈͷHTMLΛ࡞ͬͨޙͰΩϟογϡ͢Δ • CPUίετͷߴ͍ॲཧ͍͍ͤͥ࠷ॳͷҰ ͚ͩ 3FEJT.FNEJO NFNPSZ$BDIF
Ωϟογϡ • Ωϟογϡͨ͠ใΛ͍ͭpurge͢Δͷ͔ ʢߋ৽සߴ͍ͷΩϟογϡແҙຯʣ • Redis/Memcached/LRU CacheͳͲͲ͜ʹอ ଘ͢Δͷ͔ • ͦͦಈతͳίϯςϯπΩϟογϡͰ͖
ͳ͍
Ωϟογϡ • Ωϟογϡͨ͠ใΛ͍ͭpurge͢Δͷ͔ ʢߋ৽සߴ͍ͷΩϟογϡແҙຯʣ • Redis/Memcached/LRU CacheͳͲͲ͜ʹอ ଘ͢Δͷ͔ • ͦͦಈతͳίϯςϯπΩϟογϡͰ͖
ͳ͍ ͜ͷลۜͷؙͳ͍ɺαʔϏεʹΑͬͯಛੑ͕ҧ ͏ͷͰͦΕͧΕαʔϏε͝ͱʹؤுΔඞཁ͋Γɻ
above the fold rendering
above the fold rendering • ݟ͑Δൣғ͚ͩαʔόαΠυϨϯμϦϯάͯ͠ɺ ݟ͑ͯͳ͍ൣғΫϥΠΞϯταΠυϨϯμ Ϧϯά͢Δɻ 443 $43
above the fold rendering • ͜Εݟ͑ͯͳ͍෦࣮SEO͕ͪΌΜͱ ࣮ߦ͞ΕΔͱݶΒͳ͍ɻ • Time To
Interact Ͱ͖Δ·Ͱ εΫϩʔϧ͢Δͱ Կͳ͍ঢ়ଶʹͳΔɻ ✗
above the fold rendering • ͜Εݟ͑ͯͳ͍෦࣮SEO͕ͪΌΜͱ ࣮ߦ͞ΕΔͱݶΒͳ͍ɻ • Time To
Interact Ͱ͖Δ·Ͱ εΫϩʔϧ͢Δͱ Կͳ͍ঢ়ଶʹͳΔɻ ͜ΕαʔϏεಛੑͰڐ༰Ͱ͖Δͷͳͷ͔ݕ౼ ͷ༨͋Γ
Server Side Rendering͕Ͱ ͖ΕFirst Meaningful Paint ΛߴԽͰ͖Δ͕ɺ࠷దԽ͢ Δʹ໘ଟ͍
ٯʹݴ͑ɺ"ͪΌΜͱ" ࣮ࢪ͢Δͱ First Meaningful Paint Λߴ Խͭͭ͠ɺSPAͷྑ͍ॴͲ Γ͕࣮ݱͰ͖Δɻ
Users Voice
Users Voice Ͳͷҙݟཁ͢ΔͱɺFirst Meaningful Paint ࣺͯͯͦͷޙͷTime To Interact·ͰΛߴԽ͢Ε OKͰ͠ΐʁͱ͍͏(͘͠ະདྷͷWebͷظ)
͜ΕΒͷAnswer: First Meaningful Paint Λ ࣺͯͯྑ͍ͳΒSSR Βͳͯ͘OK
First Meaningful Paint Λ ߴԽ͢Δ͖͔Ͳ͏͔ αʔϏεಛੑʹґଘ͢Δ ʢ༧ࡁΈͷډञͱ͔ඒ༰ Ӄ୳ͯ͠Δ࣌ʹද͍ࣔͱக ໋తʣ
͋ͱݸਓతʹύϑΥʔϚϯ εͰଥڠͨ͘͠ͳ͍
PerformanceऴΘΓ͕ͳ͍ ֤ॴͰৗʹվળͷඞཁ͕͋Δ
࠷ۙͷWebͷτϨϯυ First Meaningful Paint ͷߴԽͪΖΜɺͦͩ͜ ͚͡Όͳ͘ͳ͖͍ͬͯͯΔɻ
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE 'JSTU.FBOJOHGVM1BJOU͔Β5JNF5P*OUFSBDUJWF͕Ε͗͢Δͱ
ࠓݟ͑ͯΔͷʹૢ࡞Ͱ͖ͳ͍͕࣌ؒ૿͑ͯετϨεʹܨ͕Δ https://medium.com/@addyosmani/progressive-web-apps-with-react-js-part-2- page-load-performance-33b932d97cf2
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE ͳͷͰɺ࠷ۙ$PEF4QMJUUJOHͯ͠ͳΔ͘+4ࣗମΛܰ͘͢Δɺ)551ͷ
164)Λ͏·ͬͯ࣍͘ͷϦιʔεΛࣄલΩϟογϡ͓ͯ͘͠ͳͲͷ5JNF5P *OUFSBDU·ͰΛԿʹ͘͢Δ͔ͷվળࡦ͕ग़͍ͯΔɻ https://medium.com/@addyosmani/progressive-web-apps-with-react-js-part-2- page-load-performance-33b932d97cf2
͜Ε͚ͩ͡Όͳ͍
/BWJHBUJPO4UBSU 'JSTU1BJOU 'JSTU$POUFOUGVM 1BJOU Loading.. 'JSTU.FBOJOHGVM 1BJOU 4FSWFSͰͷϨεϙϯεվળ %#ΫΤϦνϡʔχϯάωοτϫʔΫվળ
/BWJHBUJPO4UBSU 'JSTU1BJOU 'JSTU$POUFOUGVM 1BJOU Loading.. 'JSTU.FBOJOHGVM 1BJOU $SJUJDBM3FOEFSJOH$44Ͱͷௐɺ -PBEJOH*OEJDBUPSʹΑΔͨͤͳ͍
/BWJHBUJPO4UBSU 'JSTU1BJOU 'JSTU$POUFOUGVM 1BJOU Loading.. 'JSTU.FBOJOHGVM 1BJOU ॳظσʔλΛGFUDI͢ΔͷͰͳ͘ɺ+40/ͱͯ͠ຒΊࠐΉ ͘͠ɺॳظσʔλΛ)5.-ʹ͢Δ ʢ4FSWFS4JEF3FOEFSJOHʣ
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE BCPWFUIFGPME֎ͷը૾ͷԆಡΈࠐΈ
ޮతͳϑΥʔϚοτͷબఆ
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE +4ͷԆϩʔυɺ+4DPEFTQMJUUJOHͳͲͰͷෆཁͳίʔυ
ͷআ
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE )5513FTPVSDF)JOUTʹΑΔϩʔυվળ
'JSTU.FBOJOHGVM 1BJOU 7JTVBMMZSFBEZ 5JNF5P *OUFSBDUJWF +4MPBEFE 'VMMZ-PBEFE BMMSFTPVSDFTBSF MPBEFE )5513FTPVSDF)JOUTʹΑΔϩʔυվળ
ύϑΥʔϚϯεͷվળେมʂʂʂ Ͱͦ͜ʹݸਓతʹଥڠͨ͘͠ͳ͍
·ͱΊ
·ͱΊ • Server Side Rendering SEO ͚ͩ͡Όͳ͍ɺॳظදࣔ( First Meaningful
Paint )ʹޮՌతͳࢪࡦ • ࣮ࡍʹ͓͏ͱ͢ΔͱɺCPUෛՙ͕ߴ͍ॲཧͳͷͰɺαʔόଆ Ͱ৭ʑHack͕ඞཁ (ΩϟογϡATFϨϯμϦϯά) • Server Side Rendering αʔϏεͷಛੑ࣍ୈͰ͠ͳͯ͘ྑ͍ • ύϑΥʔϚϯεʹݶΓ͕ͳ͍ɺݸਓతʹ͔ͩΒͱ͍ͬͯଥ ڠͨ͘͠ͳ͍ɻ
Thank you !!!