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輕鬆「Go」建
事件驅動應⽤
Ming Hsu
2021.02
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關於我
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େࢿܥࡾڃ
33rd 台⼤學⽣會資訊長
Ming Hsu (許浩鳴)
LINE Taiwan / TECHFRESH
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什麼是事件驅動
Messaging systems
如何使⽤ Golang 實現事件驅動
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02
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Contents
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圖源：我
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1. 事件驅動
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What is event
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ҰݸʮվᏓܥ౷㐫ଶʯతᏓԽ
ՄҎੋ༻ऀతᴍ㐝ɺTFOTPSతࢿྉྲྀɺҰච
ཱతగᄸࢿਜ
㗞ੜFWFOUతҰํڣੜ㗞ऀ QSPEVDFS
ᏅFWFOUతҰํڣফඅऀ DPOTVNFS
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事件驅動架構
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1VC4VCNPEFM
ফඅऀగ㕕Ұ౸Ꮠݸࣄ݅ྲྀ
ᙛҰݸࣄ݅㗞ੜ ඃᚙ
ޙ။ඃૹڅ༗గ
㕕ሏతফඅऀ
&WFOUTUSFBNJOH
ࣄ݅ඃBQQFOEਐMPHฒଘࡏFWFOU
TUPSF
$POTVNFSՄҎჩᢛҰࣄ݅ྲྀ
&WFOUTPVSDJOHɺ$234 ᩇሜ
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Why 事件驅動
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໌֬ݐཱ%PNBJOFWFOUɺҡ࣋ఔࣜᬑքɺҡ࣏࣋ࣗੑ
ղ㪧ܥ౷݅ɺᱷࢄґ↳
ҟ㑊႔ཧఏߴܥ౷UISPVHIQVUɺఏߴᎷలੑ
ґ↳ɼߋషۙਅመۀᬓा᮫
3FBDUJWFTZTUFN
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事件驅動與微服務
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ᅷݯ.JDSPTPGU%PDT
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注意事項
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༻લधཁධဟܥ౷ሣࢿྉҰகੑతཁٻ
ࢿྉ۩࠷ऴҰகੑతڥֱ༰қ႔ཧ
֬อࢄࣜަқࢿྉҰகੑతํ๏ɿଟ֊ஈఏަɺTBHBQBUUFSO
ֹ֎తҡӡຊ
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2. Messaging Systems
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Overview
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"QBDIF,BGLB
ߴUISPVHIQVU
)JHISFMJBCJMJUZBOETDBMBCJMJUZ
"UNPTUPODF
BUMFBTUPODFEFMJWFSZ
(VBSBOUFFNFTTBHFPSEFS JOBQBSUJUJPO
1VMMNPEFM TNBSUDMJFOU
ࢧԉࣄ݅ճ SFMBZ
ಛผద߹႔ཧେྔࢿྉྲྀ
3BCCJU.2
᯦׆త࿏༝ػ੍
ਅਖ਼త.2መ࡞".21ڠఆ
"UNPTUPODF
BUMFBTUPODFEFMJWFSZ
1VTINPEFM TNBSUTFSWFS
ద༻ԙෳᯑతSPVUJOHܠ
/"544USFBNJOH
ඇৗߴతUISPVHIQVU
4JNQMJDJUZ
᫊ྔշ
"UNPTUPODF
BUMFBTUPODFEFMJWFSZ
ࢧԉࣄ݅ճ
1VTINPEFM TNBSUTFSWFS
༻(PMBOHመ࡞త$/$'ሢҊɼඞਢࢧ࣋
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Overview
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"TUVEZPO.PEFSO.FTTBHJOH4ZTUFNT,BGLB
3BCCJU.2BOE/"544USFBNJOH
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More NATS
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/"54ࢧԉ2VFVF(SPVQɼሏ
။ૹਜଉڅॴ༗༗గ㕕
DIBOOFMత2VFVFHSPVQɼฒ
ሣಉ2VFVF(SPVQతॴ༗
4VCTDSJCFSෛࡌۉߧɼࣕෆ။
ॏෳᚙૹਜଉ
/"54తగ㕕ࢧԉUPLFO
NBUDIJOHɼՄҎར༻ࠑޭೳ
ෳᯑSPVUJOH
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Performance
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3. ⽤ Golang 實作事件驅動
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Watermill
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IUUQTHJUIVCDPN5ISFF%PUT-BCTXBUFSNJMM
㢨ॿመ࡞NFTTBHFTUSFBNJOHత(PMBOHMJCSBSZ
౷ҰQVCMJTITVCTDSJCFհ໘ɼҼࠑՄҎ᫊ᱷ౸ෆಉఈCSPLFSࣕෆधमվ֩৺ఔ
ࣜᛰ
ॆᕝኧੑత"1*ᩋզ၇ՄҎঠѲCSPLFSTQFDJpDతઃఆ
։ശଈ༻తNJEEMFXBSFɼᩋզ၇ෆ༻खࠁ5JNFPVUɺ3FUSZɺ3FDPWFSZॾଟޭೳ
আྃ,BGLB҃3BCCJU.2ৗݟతCSPLFSɼXBUFSNJMMࢧ࣋)551҃ੋ.Z42-
CJOMPH
'BTUQSPEVDUJPOSFBEZ ৄݟํᆫྗଌࢼ
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Watermill
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)BOEMFS֩৺ɿ
1VC4VCɿ
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Demo Time
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IUUQTHJUIVCDPNNJOHITVHPMBOHUBJQFJXBUFSNJMMFYBNQMF
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3. Reference
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Links
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IUUQTXXXSBCCJUNRDPN
IUUQLBGLBBQBDIFPSH
IUUQTOBUTJP
IUUQTXXXSFEIBUDPNFOUPQJDTJOUFHSBUJPOXIBUJTFWFOUESJWFOBSDIJUFDUVSF
IUUQTBSYJWPSHQEGQEG
IUUQTHJUIVCDPN5ISFF%PUT-BCTXBUFSNJMM
IUUQTXBUFSNJMMJPEPDTDRSTCVJMEJOHBSFBENPEFMXJUIUIFFWFOUIBOEMFS
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THANK YOU