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ʲ(PݴޠʳδΣωϦΫε Tomoki Ot a

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ΞδΣϯμ any δΣωϦΫε 2

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BOZ 3

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BOZͱ͸ ۭΠϯλʔϑΣΠεJOUFSGBDF\^ͷΤΠϦΞε 4

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BOZͱ͸ ͲΜͳܕͰ΋อ࣋Ͱ͖Δ ˠա৒ͳҰൠԽ ɹ੩తܕ෇͚ݴޠͷར఺͕ࣦΘΕΔ 5

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BOZͱ͸ ϝιουͷγάχνϟ͸Ͱ͖Δ͚ͩ໌ࣔతʹ͢Δ BOZ͸Կͷ৘ใ΋࣋ͨͳ͍ͷͰ جຊతʹ͸࢖Θͳ͍ 6

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BOZΛ࢖͏΂͖ͱ͖ Ϛʔγϟϧؔ਺ͳͲ͋ΒΏΔܕΛ ड͚औͬͨΓฦͨ͠Γ͢Δඞཁ͕͋Δͱ͖ 7

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BOZΛ࢖͏΂͖ͱ͖ https://pkg.go.dev/encoding/json#Marshal encoding/jsonͷMarshal 8

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BOZΛ࢖͏΂͖ͱ͖ database/sqlͷQueryContext https://pkg.go.dev/database/sql#DB.QueryContext SELECT * FROM FOO WHERE id = ?

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δΣωϦΫε 10

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δΣωϦΫεΛ࢖༻͠ͳ͍ྫ ࠨͷίʔυ͸mapܕ͔ΒΩʔΛશͯग़ྗ͢Δɻ https://go.dev/play/p/lL6T8BDRE3D 11

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δΣωϦΫεΛ࢖༻͠ͳ͍ྫ NͷΩʔͱ஋͕ଞͷܕͰ͋ͬͨ৔߹ʹ ಈ͔ͳ͘ͳΔɻ ࠨ͸N͕NBQTUSJOHʹͳͬͨͷͰ ίϯύΠϧΤϥʔ 12

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BOZͰ࣮૷ͨ͠ྫ HFU,FZT͸ɺBOZΛड͚ͱΓɺBOZΛฦ͢ɻ https://go.dev/play/p/9WgO0MVtYe_P 13

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BOZͰ࣮૷ͨ͠ྫ HFU,FZT͸ɺBOZΛड͚ͱΓɺBOZΛฦ͢ɻ (Pͷ੩తܕ෇͚ͷར఺͕ࣦΘΕΔ ܁Γฦ͠ͷίʔυ͕૿͑ΔՄೳੑ ˠ%3:ݪଇʹ൓͢Δ 14

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DPNQBSBUJWFͰ࣮૷ͨ͠ྫ ΠϯλʔϑΣΠεಉ༷BOZʹΑΔແବͳந৅Խ͸ආ͚Δ΂͖ NBQͰ͸ɺWBSNNBQ<<>CZUF>JOUͷΑ͏ʹ LFZʹεϥΠεΛऔΔ͜ͱ͸Ͱ͖ͳ͍ɻ 15

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DPNQBSBUJWFͰ࣮૷ͨ͠ྫ 5DPNQBSBCMFͱ͸ɺ૊ΈࠐΈͷΠϯλʔϑΣΠεɻ 5DPNQBSBCMF͸΍ͰൺֱՄೳͳ஋ͷΈҾ਺ʹड͚औΔ͜ͱ͕ՄೳʹͳΔɻ 16

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DPNQBSBUJWFͰ࣮૷ͨ͠ྫ BOZܕͷ୅ΘΓʹDPNQBSBCMFΛ༻͍Δ https://go.dev/play/p/ENyS1GKu3IU 17

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ಠࣗͷܕ੍໿Λఆٛ͢Δ https://go.dev/play/p/VHKfcvYQNua VOJPOTΛ༻͍Δͱ ΠϯλʔϑΣΠεͰಠࣗͷܕ੍໿Λ ఆٛ͢Δ͜ͱ͕Ͱ͖Δ 18

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VOJPOTͱ͸ ෳ਺ͷܕΛड͚औΕΔΑ͏ʹͰ͖Δ 19

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ಠࣗͷܕ੍໿Λఆٛ͢Δ VOJPOTΛؚΉΠϯλϑΣʔε͸ܕ੍໿Ͱ͔͠࢖͑ͳ͍ɻ WBSYDVTUPN$POTUSBJOUͷΑ͏ʹ͸Ͱ͖ͳ͍ɻ

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δΣωϦΫεͷ஫ҙ ϝιουͰ͸࢖༻Ͱ͖ͳ͍ɻ ؔ਺͸Մೳ

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δΣωϦΫεͷ஫ҙ TUSVDUͰ͸࢖༻Ͱ͖Δɻ

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δΣωϦΫεͷ஫ҙ ࠨ͸ɺಠࣗͷܕ੍໿ΛTUSVDUʹ࣋ͨͤͨྫ IUUQTHPEFWQMBZQ-Q/XP8P9 23

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δΣωϦΫεͷ஫ҙ JOUFSGBDFʹTUSDVUΛFNCFEͰ͖Δ ͔͠͠ɺϑΟʔϧυʹ͸ΞΫηεͰ͖ͳ͍ɻ 24

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δΣωϦΫεͷ஫ҙ ͜Ε΋ίϯύΠϧΤϥʔ 25

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δΣωϦΫεͷ஫ҙ δΣωϦΫε͸͋͘·Ͱ΋ܕ੍໿ͷΈɻ ࣮ࡍʹϑΟʔϧυʹΞΫηε͢Δ͜ͱ͸Ͱ͖ͳ͍ɻ 26

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dJOUWTJOU dJOU͸JOUΛϕʔεͱ͢ΔܕΛશͯड͚औΕΔ https://go.dev/play/p/E3kcU9-7TJ6 27

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δΣωϦΫεΛ࢖༻͢΂͖ͱ͖ w σʔλߏ଄ FHόΠφϦπϦʔɺ࿈݁Ϧετɺώʔϓ w εϥΠεɺϚοϓɺ͓Αͼ೚ҙͷλΠϓͷνϟωϧͰಈ࡞͢Δؔ਺ w δΣωϦΫεΛ࢖ͬͯৼΔ෣͍Λந৅Խ͢Δ 28

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εϥΠεɺϚοϓɺ͓Αͼ೚ҙͷλΠϓͷνϟωϧͰಈ࡞͢Δؔ਺ δΣωϦΫεΛ࢖༻͢΂͖ͱ͖ 29

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δΣωϦΫεΛ࢖ͬͯৼΔ෣͍Λந৅Խ͢Δ δΣωϦΫεΛ࢖༻͢΂͖ͱ͖ 30

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δΣωϦΫεΛ࢖༻͢΂͖Ͱ͸ͳ͍ͱ͖ w ड͚औͬͨҾ਺ͷϝιουΛ࢖༻͢Δͱ͖ w δΣωϦΫεΛ࢖͏͜ͱͰίʔυ͕ෳࡶʹͳΔͱ͖ (Pͷ։ൃऀ͸೥ؒδΣωϦΫεͳ͠Ͱ΍͖ͬͯͨ 31

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δΣωϦΫεΛ࢖༻͢΂͖Ͱ͸ͳ͍ͱ͖ ड͚औͬͨҾ਺ͷϝιουΛ࢖༻͢Δͱ͖ͷྫ 32