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ikyu_hack_camp_#1
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kentana20
August 10, 2014
Technology
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ikyu_hack_camp_#1
開発合宿#1 @ 日光はじめのいっぽ
Node.js でスクレイピングバッチ+Webアプリを作った
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Transcript
։ൃ߹॓#1 ͡Ίͷ͍ͬΆ 2014.08.08 @kentana20
Agenda ϨΪϡϨʔγϣϯʢ֬ೝʣ ࠾༻ٕͨ͠ज़ ࠓճͷ࡞ίϯηϓτ ࡞ͬͨͷ Batch Web Node.jsॴײ ·ͱΊ
ϨΪϡϨʔγϣϯ ͋·Γ৮͍ͬͯͳ͍ݴޠɾϑϨʔϜϫʔΫΛ৮Δ ࣾͷҰ෦αʔϏεΛఆͨ͠ҎԼͷॲཧϓϩ άϥϜΛ࡞Δ Batch:εΫϨΠϐϯάॲཧʴDBొ Web:Batchॲཧͯ͠औಘͨ͠σʔλͷදࣔ
࠾༻ٕͨ͠ज़ Node.js Batch/WebͱʹNode.js Node.jsnpmύοέʔδ͕๛ͰεΫϨΠϐϯάɺόον ॲཧʢcronʣɺDBΫϥΠΞϯτɺWebϑϨʔϜϫʔΫͱଟ ࠼ͳϥΠϒϥϦ܈͕ັྗ Redis ΠϯϝϞϦܕNoSQL
ࠓճͷ࡞ίϯηϓτ ʮඒঁʯΛࡐʹͨ͠ΞϓϦ 1ധ2Ͱ࣌ؒͷ࡞ۀ͕༧͞ΕͨͷͰɺπϥ ͘ͳ͍ࡐΛબ ਖ਼ৗʹऔಘɾදࣔ͞Εͨͱ͖ʹ༊͞ΕΔ ʮඒঁྐྵʯ͔Βඒঁը૾ͱϓϩϑΟʔϧΛεΫϨ ΠϐϯάͰऔಘ
࡞ͬͨͷ Batch `cheerio-httpcli` ͱ͍͏npmΛ࠾༻ʢΤϯδχΞblog࠷ ߴʣ σʔλͷอଘRedisΛ࠾༻ʢطʹOS Xʹೖ͔ͬͯͨΒʣ jQueryϥΠΫʹεΫϨΠϐϯάॲཧ͕ॻ͚Δ͙͢Εͷ CasperJSΛ͍͔͕ͨͬͨɺNode.jsͰಈ࡞ͤ͞Δͷʹ SpookyJS͕ඞཁͱ͍͏͜ͱΛࣦ೦͍ͯͯ͠λΠϜϩε
࡞ͬͨͷ Web `Express` ͱ͍͏WebϑϨʔϜϫʔΫΛ࠾༻ ΠϚυΩͷWebϑϨʔϜϫʔΫͰɺejsͱ͍͏Rails Ͱ͍͏ͱ͜ΖͷerbతͳwebςϯϓϨʔτ͕͑ ͯεοͱೖΕͨ ͕࣌ؒͳͯ͘ϓϨʔϯա͗ΔUIʹͳͬͨ
Γ͔ͨͬͨ͜ͱɾ৺Γ Q (ඇಉظΓ͜ͳͤͳ͔ͬͨʣ ඒঁͷϓϩϑΟʔϧΛͬͱऔಘ͔ͨͬͨ͠ʢliཁૉ͕ՄมͰid/ class྆ํͳͯ͘”൴ࢯͷ༗ແ”͕औΕͳ͔ͬͨ͜ͱ͕৺Γʣ WebϖʔδΛඒঁʹ;͞Θ͘͠ɺͬͱ՚͔ͳUIʹ͔ͨͬͨ͠ ʢBatchͷ࣮ʹֻ͚࣌ؒ͗ͯ͢ɺWebͷ࣮ʹ2࣌ؒ͘Β͍͔͠ͱ Εͳ͔ͬͨɻ࣌ؒॏཁʣ SpookyJSͰσʔλεΫϨΠϐϯά͢Δͷָͦ͠͏ͳͷͰɺͦͬͪ ʹτϥΠͯ͠Έ͍ͨ
Node.jsॴײ JavascriptϥΫʢ͚ͲͬͺΓه๏͖͡Όͳ͍ʣ JavascriptͰͯ݁͢Ͱ͖ΔͷͰɺڥߏஙؚΊͯಋೖίε τɾֶशίετ͍ npm͕๛ͳͷͰɺΠϚυΩͷWebΞϓϦͰ͍ͬͯΔ͜ͱ ͍͍ͩͨΧόʔͰ͖Δ γϯάϧεϨουɾඇಉظΛΓ͜ͳ͢༰ͳਫ਼ਆ͕ඞཁ झຯͷΞϓϦͳΒશવީิʹೖͬͯ͘Δ͕B2C͚ͷ͋Δఔ ͷτϥϑΟοΫ͕༧͞ΕΔαʔϏεӡ༻ະ
։ൃ߹॓ॴײ ूதͯ͠ɺීஈͷੜ׆͔ΒΕͯ։ൃʹ͖߹͏࣌ؒ ࠷ߴ ࠓճ͓ࢼ͠ʴ৽ݴޠͷτϥΠͩͬͨͷͰ1ധ2Ͱ ྑ͔͕ͬͨɺࣄͰ࣮ࡍʹ։ൃ߹॓͢ΔͳΒ2~3ധ ͘Β͍ͯ͠ɺΨοπϦ։ൃ͢Εɺ͔ͳΓॆ࣮ͨ͠ ՌΛग़ͤͦ͏ ఆظతʹ։࠵͍ͨ͠ʢ2ճͱ͔ʣ
Enjoy Coding!