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Micro Frontends (example from micro-frontends.org)
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nobuhikosawai
July 31, 2018
Programming
0
920
Micro Frontends (example from micro-frontends.org)
Microservices meetup vol.7の発表資料です。
マイクロフロントエンドの概要とサンプルをmicro-frontends.orgの例をもとに解説しています。
nobuhikosawai
July 31, 2018
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Transcript
.JDSP'SPOUFOET .JDSPTFSWJDFT.FFUVQ7PM
ࣗݾհ !2 • ໊લ: ᖒҪ એ ʢ͞Θ͍ ͷͿͻ͜ʣ • twitter/github:
nobuhikosawai • ΤϯδχΞྺ: 2ͪΐ͍ • αʔόʔαΠυ(Rails) • ϑϩϯτΤϯυ(React.js)
͍͖ͳΓͷએ !3 IUUQTPUBZCPPUIQNJUFNT ٕज़ॻయ4ͰʮMicroservices architecture ΑΖͣຊʯͱ͍͏ຊΛग़͠·ͨ͠ɻ ୈ5ষͰMicro Frontends৮Ε͍ͯ·͢ɻ ΈΜͳങͬͯͶ
.JDSP'SPOUFOETʹཉ͍͠ͷ !4 • 6*ίϯϙʔωϯτͷఏڙ • 6*ίϯϙʔωϯτؒͷڠௐ • 6*ίϯϙʔωϯτؒͷΠϕϯτϋϯυϦϯά • 6*ɾϢʔβʔମݧͷ౷Ұ
.JDSP'SPOUFOETͷύλʔϯ !5 • نͱΓ͍ͨ͜ͱͰ͍͔ͭ͘ͷύλʔϯ͕͋Δ • ϖʔδભҠΛͯ͠ྑ͍ύλʔϯ • ϖʔδʹෳίϯϙʔωϯτΛද͍ࣔͨ͠ύλʔϯ
ϖʔδભҠΛͯ͠ྑ͍ύλʔϯ !6 • ैདྷͷϝχϡʔόʔͳͲ͔ΒભҠ͢Δύλʔϯɻ • جຊతʹͭͷαʔϏε͕ͭͷ7JFXΛ࣋ͭɻ • ମݧͷҰ؏ੑΛ୲อ͢ΔͨΊʹҎԼ͕ඞཁ • 4JOHMF4JHO0O
• 6*ͷ౷Ұ • ϔομʔͳͲͷϩδοΫΛؚΉΑ͏ͳίϯϙʔωϯτ – ίϐϖ – ϥΠϒϥϦͰఏڙ͢Δ – ͭͷαʔϏε͕ฦ͢ JGSBNFͰදࣔ͢Δʣ • ϘλϯͳͲͷγϯϓϧͳ6*ύʔπ
ϖʔδʹෳίϯϙʔωϯτΛද͍ࣔͨ͠ύλʔϯ !7 ෳίϯϙʔωϯτͷදࣔํ๏େ͖͚ͯͭ͘ • JGSBNFΛ͏ύλʔϯ • 8FC$PNQPOFOUTΛ͏ύλʔϯ
JGSBNFΛ͏ํ๏ !8 • 6*ίϯϙʔωϯτͷఏڙ֤νʔϜ͕)5.-Λఏڙ • 6*ίϯϙʔωϯτؒͷΠϕϯτϋϯυϦϯάJGSBNF ͷQPTU.FTTBHF
JGSBNFΛ͏߹ͷίʔυΠϝʔδ !9 • ࢠίϯϙʔωϯτ function receiveMessage(event) { if (event.origin !==
'http://example.com') { return; } ɹif (event.data === 'getHelloWorld') { event.source.postMessage( 'hello world', event.origin ); } } window.addEventListener('message', receiveMessage, false);
JGSBNFΛ͏߹ͷίʔυΠϝʔδ !10 • ίϯϙʔωϯτ class Parent extends React.Component { componentDidMount()
{ window.addEventListener('message', this.doSomething, false); } componentWillUnmount() { window.removeEventListener('message', this.doSomething, false); } doSomething() { // do something } }
8FC$PNQPOFOUTΛ͏ํ๏ !11 • ͏ͪΐͬͱϞμϯͳํ๏ͱͯ͠8FC$PNQPOFOUTΛ ༻͢Δ
ͪΐͬͱͦΕͯ8FC$PNQPOFOUTͱͳʹ͔ !12 • શʹཧղ͔ͨ͠Γ ͪΐͬͱυΩϡϝϯτݟͨͩ ͚ʣͳͷͰɺϚαΧϦ͓खॊΒ͔ʹ͓ئ͍͠·͢
8FCDPNQPOFOUTͱͳʹ͔ !13 • 8FCDPNQPOFOUTBSFBTFUPGXFCQMBUGPSN"1*T UIBUBMMPXZPVUPDSFBUFOFXDVTUPN SFVTBCMF FODBQTVMBUFE)5.-UBHTUPVTFJOXFCQBHFTBOE XFCBQQT •
8FCDPNQPOFOUTͱɺΣϒϖʔδΣϒΞϓϦͷ தͰར༻Մೳͳɺಠࣗͷ࠶ར༻ՄೳͰΧϓηϧԽ͞Εͨ )5.-λάΛ࡞ΔͨΊͷXFCϓϥοτϑΥʔϜͷ"1*Ͱ͢ɻ
8FCDPNQPOFOUTͱͳʹ͔ !14 • ҎԼͷओͳ༷͔ΒΔɻ • $VTUPN&MFNFOUT • 4IBEPX%0. • )5.-JNQPSUT
• )5.-5FNQMBUF
γϣοϐϯάαΠτͷྫ !15 • NJDSPGSPOUFOETPSHͷαϯϓϧΛྫʹ • γϣοϐϯάαΠτͷػೳ • બ • ߪೖϘλϯ
• Ϩίϝϯυ
γϣοϐϯάαΠτͷྫ !16 • ػೳ͝ͱʹνʔϜ͕ಠཱ • ͋ͳͨߪೖνʔϜʢ੨νʔϜʣʹଐ͍ͯ͠·͢ • ͜ΕΛ8FC$PNQPOFOUTͰ.JDSP'SPOUFOETͯ͠ΈΔ
$VTUPN&MFNFOUTͷྫ !17 • ·ͣϘλϯΛදࣔͤ͞Δ • 6*ίϯϙʔωϯτͷఏڙ 8FC$PNQPOFOUTΛར༻ • ͱ͘ʹ$VTUPN&MFNFOUTΛར༻
$VTUPN&MFNFOUTͷྫ !18 • $VTUPN&MFNFOUTͷఆٛͱݺͼग़͠ – λά໊͕িಥ͠ͳ͍Α͏ʹҙʢQSFGJYͳͲʣ class BlueBuy extends HTMLElement
{ constructor() { super(); this.innerHTML = `<button type="button">buy for 66,00 €</button>`; } disconnectedCallback() { ... } } window.customElements.define('blue-buy', BlueBuy); <blue-buy></blue-buy>
͔Βࢠͷ௨৴%0.ͷमਖ਼ͷํ๏ !19 • ࣍ʹͷը૾Λબͨ͠ΒɺߪೖϘλϯͷֹۚදࣔΛ ม͑Δํ๏Λߟ͑Δ • $VTUPN&MFNFOUTͷଐੑͰදࣔΛม͑Δ • PCTFSWFE"UUSJCVUFTʹ؍ଌଐੑΛઃఆ •
BUUSJCVUF$IBOHFE$BMMCBDLͰ࠶SFOEFSΛ࣮ߦ • 3FBDUͰ͍͏ͱ͜ΖͷQSPQTͷมߋ ʢ$PNQPOFOU8JMM3FDFJWF1SPQTΈ͍ͨͳʣ
͔Βࢠͷ௨৴%0.ͷमਖ਼ͷํ๏ !20 • BUUSJCVUFTΛड͚औΕΔ༻ʹઃఆ • 3FBDUQSPQTΈ͍ͨͳ • )5.-EBUBଐੑ <blue-buy sku="t_fendt"></blue-buy>
͔Βࢠͷ௨৴%0.ͷमਖ਼ͷํ๏ !21 const prices = { t_porsche: '66,00 €', t_eicher:
'58,00 €’, … }; class BlueBuy extends HTMLElement { static get observedAttributes() { return ['sku']; } constructor() { super(); this.render(); } render() { const sku = this.getAttribute('sku'); const price = prices[sku]; this.innerHTML = `<button type="button">buy for ${price}</button>`; } attributeChangedCallback(attr, oldValue, newValue) { this.render(); } disconnectedCallback() {...} } window.customElements.define('blue-buy', BlueBuy);
ࢠ͔ΒPSܑఋཁૉಉ࢜ͷ௨৴%0.&WFOUT !22 • ߪೖϘλϯΛΫϦοΫ͢ΔͱΧʔτͷࣈ͕มߋ͞Εͯ ཉ͍͠ • &WFOUϞσϧΛ༻ 1VC4VC •
ૄ݁߹ • $VTUPN&WFOUTʹΑΓಠࣗͷ&WFOUఆ͕ٛՄೳ
ࢠ͔ΒPSܑఋཁૉಉ࢜ͷ௨৴%0.&WFOUT !23 class BlueBuy extends HTMLElement { [...] connectedCallback() {
[...] this.render(); this.firstChild.addEventListener('click', this.addToCart); } addToCart() { // maybe talk to an api this.dispatchEvent(new CustomEvent('blue:basket:changed', { bubbles: true, })); } render() { this.innerHTML = `<button type="button">buy</button>`; } disconnectedCallback() { this.firstChild.removeEventListener('click', this.addToCart); } } • ߪೖϘλϯଆ QVCMJTI
ࢠ͔Βͷ௨৴PSܑఋཁૉಉ࢜ͷ௨৴%0.&WFOUT !24 class BlueBasket extends HTMLElement { connectedCallback() { [...]
window.addEventListener('blue:basket:changed', this.refresh); } refresh() { // fetch new data and render it } disconnectedCallback() { window.removeEventListener('blue:basket:changed', this.refresh); } } • ΧʔτଆʢTVCTDSJCF
ͦͷଞͷ !25 • ಈ࡞͢Δ͜ͱʹޭ͕ͨ͠ଞʹߟྀ͖͢͜ͱ͕ͨ͘ ͞Μɻ • ྫͱͯ͠ҎԼΛߟ͢Δɻ • 6*ͷ౷Ұ •
3PVUJOH
6*ͷ౷Ұ !26 • HMPCBMͳ$44Λఏڙ͢Δ • ϥΠϒϥϦΛఏڙ͢Δ • OQN • CPPUTUSBQͳͲ
• 8FC$PNQPOFOUT • ϘλϯͷΑ͏ͳ6*ύʔπͳͲ
6*ͷ౷Ұ !27 • HMPCBMͳ$44 • ϝϦοτಋೖ͕؆୯ɺҰ؏ੑͷ୲อ͕༰қ • σϝϦοτංେԽ͍͢͠ɺϦϑΝΫλϦϯά͕ࠔ • MJCSBSZ
• ϝϦοτಠཱͯ͠मਖ਼Մೳ • σϝϦοτCVJMEπʔϧʹґଘ͢Δ߹͕͋Δɺόʔδϣ ϯࠩʹΑΔ6*ͷෆҰக
3PVUJOH !28 • ભҠ͍Ζ͍Ζ • νʔϜ෦ͷϧʔςΟϯάͷભҠWTνʔϜؒΛ·͙ͨભҠ • ϑϧϨϯμϦϯάWTύʔγϟϧϨϯμϦϯά IUUQTTQFBLFSEFDLDPNOBMUBUJTNJDSPGSPOUFOETUIJOLTNBMMFSBWPJEUIFNPOPMJUIMPWFUIFCBDLFOE
3PVUJOH !29 • νʔϜ෦͚ͩεϜʔζʹҠಈͰ͖Δྫ • ࣮ൺֱత୯७ • νʔϜΛ·͙ͨͱ͖ʹ69͕Լ͢Δ IUUQTTQFBLFSEFDLDPNOBMUBUJTNJDSPGSPOUFOETUIJOLTNBMMFSBWPJEUIFNPOPMJUIMPWFUIFCBDLFOE
3PVUJOH !30 • νʔϜؒΛ·͙ͨભҠΛύʔγϟϧϨϯμϦϯάͰΔ ྫ • ϧʔςΟϯάͱͦΕʹରԠ͢ΔGSBHNFOUͷϚοϐϯάΛ ࣮࣋ͬͯݱ͢Δ IUUQTTQFBLFSEFDLDPNOBMUBUJTNJDSPGSPOUFOETUIJOLTNBMMFSBWPJEUIFNPOPMJUIMPWFUIFCBDLFOE
ύωϧσΟεΧογϣϯͷఏى !31 • .JDSP'SPOUFOETΛΊ͙Δ • νʔϜׂ • 8FC$PNQPOFOUTͷຊ൪ೖ • 6*ϥΠϒϥϦͷఏڙ
• ೝূͲ͏͢Δ͔ • 'SBNFXPSLDPNQBUJCJMJUZ • ύϑΥʔϚϯε • ΞʔΩςΫνϟ • ͳͲ • ϑϩϯτΤϯυͷະདྷͱະདྷʹ͚ͯԿ͕Ͱ͖Δͷ͔Λ ͍ٞͨ͠ͱࢥ͍·͢ɻ
ࢀߟࢿྉ !32 • IUUQTNJDSPGSPOUFOETPSH • IUUQTTQFBLFSEFDLDPNOBMUBUJTNJDSPGSPOUFOET UIJOLTNBMMFSBWPJEUIFNPOPMJUIMPWFUIFCBDLFOE
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠