JSON serializers and Alba

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RubyͷJSONγϦΞϥΠβΛ ൺֱͯ͠Έͨ2020೥൛ Gotanda.rb#44 2020-07-22 ©େ૔խ࢙

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ࣗݾ঺հ • ໊લɿେ૔խ࢙ • ॴଐɿϑϦʔϥϯεʢྺ͸1೥ͪΐͬͱɺRubyࣗମ͸8೥΄Ͳʣ • ΤσΟλɿNeovimʢVimྺ͸8೥΄Ͳʣ • ޷͖ͳϝιουɿinstance_exec • झຯɿᘖᘣ☕

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ࣗݾ঺հʢଓ͖ʣ • Kaigi on RailsͷνʔϑΦʔΨφΠβʔΛ͍ͯ͠·͢ • CFP͸ࠓ݄຤·ͰͳͷͰ࿩͢ωλ͕͋Δํ͸ͥͻʂ • ʰϚελϦϯάVimʱͷ຋༁Λ͠·ͨ͠ • Grow.rbͱEntaku.rbͱ͍͏ίϛϡχςΟΛιϩͰӡӦ͍ͯ͠·͢ • Shibuya.rbͱTama.rbͷڞಉΦʔΨφΠβʔͰ΋͋Γ·͢

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ࠓ೔ͷςʔϚɿ API/JSONʹ͍ͭͯ

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RubyΛ࢖ͬͯJSONΛฦ͢ํ๏

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JSONγϦΞϥΠβ

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ϝδϟʔͲ͜ΖΛൺֱͯ͠Έͨ

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JSONγϦΞϥΠβ3ܼʢେ૔ௐ΂ʣ • ActiveModelSerializersʢҎԼAMSʣ • ελʔ਺5k௒ɺ • jbuilder • ελʔ਺3.8kɺRailsͷσϑΥϧτʹؚ·ΕΔɺ • fast_jsonapi • ελʔ਺5k௒

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ͦͷଞͷJSONγϦΞϥΠβ • jsonapi-rb • jsonapi-resources • blueprinter • jb • representable • jsonapi-serializer

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AMS • ݹࢀͷJSONγϦΞϥΠβ • Pros • ྺ࢙͕௕͘ɺWebʹهࣄ͕๛෋ʹ͋Δ • ͲΜͳJSONεΩʔϚʹ΋ରԠՄೳ • Cons • ΄΅ϝϯς͞Ε͍ͯͳ͍༷ࢠ • ଎౓ʹ೉͕͋Δʢಛʹfast_jsonapiͱͷൺֱͰʣ

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jbuilder • Railsͷ४ެࣜJSONγϦΞϥΠβ • Pros • RailsͷίΞνʔϜʹϝϯς͞Ε͍ͯΔ҆৺ײ • RailsͰ࢖͏ͳΒґଘؔ܎Λ૿΍ͣ͞ʹࡁΉ • Cons • ஗͍ɺ͔ͳΓ஗͍ • ه๏ʢDSLʣ͕ಠಛͰशಘ͕େม

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fast_jsonapi • Netﬂix͕ग़ͨ͠JSON:APIಛԽܕͷJSONγϦΞϥΠβ • Pros • ඇৗʹߴ଎ • Cons • JSON:APIʹ४ڌͨ͠APIʹͨ͠࢖͑ͳ͍ • Netﬂix͕ϝϯςΛ൒͹์غ͠ɺ༗ࢤͷϑΥʔΫ͕ଘࡏ͢Δ͕gemͷ໊લ͕ มΘ͍ͬͯͨΓͯࠞ͠ಱͱ͍ͯ͠Δ

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".4 KCVJMEFS GBTU@KTPOBQJ ύϑΥʔϚϯε ͦͦ͜͜ ѱ͍ ඇৗʹྑ͍ ϝϯςφϯε ͞Ε͍ͯͳ͍ ͞Ε͍ͯΔ ͞Ε͍ͯͳ͍ ೚ҙͷ+40/εΩʔ ϚʹରԠ͍ͯ͠Δ ͍Δ ͍Δ ͍ͳ͍

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͜͜·Ͱͷ݁࿦

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• ߴ଎ • ϝϯς͞Ε͍ͯΔ • ೚ҙͷεΩʔϚͷJSON͕ग़ྗͰ͖ ΔʢJSON:APIܗࣜҎ֎ʹ΋ରԠ͠ ͍ͯΔʣ

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ͳ͍ʁ

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͓Εͷ͔Μ͕͍͖͑ͨ͞ΐ͏ ͷJSONγϦΞϥΠβɺAlba ͷ͝঺հ Gotanda.rb#44 2020-07-22 ©େ૔խ࢙

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• ߴ଎ • ϝϯς͞Ε͍ͯΔ • ೚ҙͷεΩʔϚͷJSON͕ग़ྗͰ͖ ΔʢJSON:APIܗࣜҎ֎ʹ΋ରԠ͠ ͍ͯΔʣ

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ػೳΛߜΔ

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໨ࢦ͢΂͖ͩͱࢥ͏΋ͷ

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• ΑΓখ͞ͳίΞ • ΑΓগͳ͍DSL • ΑΓগͳ͍ґଘؔ܎

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ΑΓখ͍͞ίΞ • ShrineʢϑΝΠϧΞοϓϩʔυϥΠϒϥϦʣ΍Rodaʢ௒ܰྔ΢ΣϒΞ ϓϦέʔγϣϯϑϨʔϜϫʔΫʣͷΑ͏ͳϓϥάΠϯϕʔεͷߏ଄ʹ ಌΕ͍ͯΔ • ໨ࢦ͢͸ίΞͷResourceϞδϡʔϧΛ100ߦҎԼʹཹΊΔ͜ͱ • ֎෦͔Β֦ுՄೳʹ͍ͨ͠ • ίΞͷϝϯςΛָʹ͍ͨ͠

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ΑΓগͳ͍DSL • attribute, one, many͘Β͍Ͱे෼͔ͳͱࢥ͍ͬͯΔ • jbuilderͷDSL͕͔ͳΓۤखͱ͍͏ݸਓతͳؾ࣋ͪ • has_manyΛΑ͘ݟ͔͚Δ͚ͲɺRuboCopʹޡղ͞ΕͨΓ͢Δ͋͠· Γ͍͍ΞΠσΞͰ͸ͳ͍Α͏ͳ…

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ΑΓগͳ͍ґଘؔ܎ • ҙݻ஍ʹͳͬͯActiveSupport΁ͷґଘΛ௥Ճ͍ͯ͠ͳ͍ • ͦͷ݁Ռͱͯ͠Inﬂection͕࢖͑ͳͯͭ͘Β͍ • ͦ΋ͦ΋ʮΦϒδΣΫτΛJSONʹม׵͢Δʯ͜ͱʹґଘؔ܎͕ͨ͘ ͞Μඞཁͬͯ͜ͱͳ͍ͷͰ͸ɺͱ͍͏ؾ࣋ͪ • ϝϯςָ͕ • ґଘؔ܎͕ͳ͍gem΁ͷಌΕ

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͕࣌ؒ͋Ε͹ιʔείʔυΛ͔ΜͨΜ ʹ͓ݟͤͰ͖Δ͔ͳ