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First Impression of

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aws-lambda-go • Seiji Takahashi • Github: timakin / Twitter: @__timakin__ • גࣜձࣾGunosy ৽نࣄۀ։ൃࣨ • Go / Swift ࣗݾ঺հ

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ੵ ۃ ࠾ ༻ தʂ

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ࠓ೔࿩͢͜ͱ

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ࠓ·ͰͲ͏͔ͯͨ͠ • apex • ਖ਼ࣜαϙʔτ͞Εͯͳ͍ݴޠͰ΋lambdaͷ ؔ਺Λॻ͚Δ • awscliΑΓ؆୯ʹσϓϩΠ

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ࠓ·ͰͲ͏͔ͯͨ͠ • Node (index.js) -> GoͷόΠφϦ • apex.HandlerFuncͱ͍͏ϋϯυϥͷ
 ίʔϧόοΫ಺෦ͰΠϕϯτड͚औΓ

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ࠓ͸Ͳ͏͢Δ͔ • aws-lambda-go • awsਖ਼ࣜαϙʔτͷlambda package • apexΛ࢖ͬͯͨਓͳΒҠߦ͸༰қ

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࣮ࡍʹҠߦͯ͠ΈΔ

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before

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after

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ҧ͍͸ʁ • ຊ࣭తʹ͸ͳ͍ • ݟͨ໨্ίʔϧόοΫͰड͚औΔ͔ɺ
 ී௨ʹϋϯυϥʔͷҾ਺Ͱड͚औΔ͔ͷ
 ҧ͍͸͋Δɻ • deploy͕awscliܦ༝ɻ • AWSެࣜDocͰinitͰͷάϩʔόϧม਺ͷ
 ॳظԽ͕ਪ঑͞Ε͍ͯΔɻ

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packageͷίʔυ • AWS͸೜ज़Έ͍ͨͳίʔυॻ͖͕ͪ • aws-sdk-goͱ͔͍͢͝ɻ
 ίʔϧόοΫͷຐज़ࢣͰ΋͍ΔͷͰ͸ɻ • aws-lambda-go΋ޚଟ෼ʹ࿙Εͳ͍

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͜Ε͸Կ 
 RPC༻ͷΧελϜϦεφʔͷ࡞੒ ͔Βͷݺͼग़͠Λͯ͘͠ΕΔ܅

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<- package͕࣮૷͍ͯ͠ΔInvoke
 funcΛݺͼग़ͤΔΑ͏ʹwrap

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<- ͍͕ͭ͜Ғ͍΍ͭ

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ɾϦΫΤετͷτϨʔγϯά ɾλΠϜΞ΢τ؅ཧ ɾRequestIDͷอ࣋ ͳͲͷͨΊʹಠࣗcontextΛ࡞੒্ͨ͠ͰɺhandlerΛݺͼग़͠

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৻·͍͠ context in context (request-scopedͳͷͰਖ਼͍͠)

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<- RPCͷݺͼग़͠ީิʹొ࿥

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<- RPC Accept

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ҰఆͷϧʔϧΛ९क͢Ε͹ϋϯυϥͱΈͳ͞ΕΔ

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৘೤తͳreflection

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ษڧʹͳΔ

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·ͱΊ • aws-lambda-go͸Ҡߦɺ৽ن࡞੒ָ͕ʂ • த਎ͷίʔυ͕໘ന͍ʂ • RPC callͷ࣮ྫ • contextͷ࢖͍ํʹ͍ͭͯߟ͑ͤ͞ΒΕΔ • reflectionͷԠ༻ྫ

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Thank you! ✨