TypeScript と React Hooks と GraphQL のステキな関係性

5ZQF4DSJQUͱ 3FBDU)PPLTͱ (SBQI2-ͷεςΩͳؔ܎ੑ .FHVSPFT :VEBJ4IJOOPLJ

ࣗݾ঺հ ਐ໦ɹ༟େ LPOPLJ@OBOOPLJ TIJOOPLJ גࣜձࣾQBMBOΤϯδχΞ w 3FBDU ͓΋ʹ3FBDU/BUJWF w
'JSFCBTF "84"NQMJGZ  4FSWFSMFTT'SBNFXPSL w 8FC"3਺ֶ୲౰

גࣜձࣾQBMBOʹ͍ͭͯ w גࣜձࣾQBMBO͸ɺ8FCͷઌ୺ٕज़ͷՄೳੑΛ୳ٻ͓ͯ͠Γ  ϒϥ΢β্Ͱಈ͘73"3 8FCY3 Λݚڀɺ։ൃ͍ͯ͠·͢

3FBDU 3FBDU/BUJWF ೥ͷ3FBDUͱ5ZQF4DSJQU w #BCFM ϦϦʔε ͔Β!CBCFMQMVHJOUSBOTGPSNUZQFTDSJQU௥Ճ w DSFBUFSFBDUBQQ΍SFBDUOBUJWFJOJU͕5ZQF4DSJQUςϯϓϨʔτΛఏڙ  ͨ͜͠ͱʹΑͬͯҰؾʹಋೖͷϋʔυϧ͕Լ͕ͬͨ

5ZQF4DSJQUͱ %FWFMPQFS&YQFSJFODF

5ZQF4DSJQUΛ࢖͏ͱ w ίʔυิ׬͕௒ڧྗʹޮ͘Α͏ʹͳΔ w ୯ʹೖྗ͕؆୯ʹͳΔ͚ͩͰͳ͘υΩϡϝϯτ୅ΘΓʹͳΔͨΊ  ϓϩδΣΫτͷҾ͖ܧ͗΍৽͍͠ϥΠϒϥϦΛ࢖͏৔߹ʹ΋༗ޮ w ՕॴΛมߋ͢Δͱؔ࿈͢Δͱ͜Ζ͕ܕΤϥʔʹͳΔͨΊ  ϦϑΝΫλϦϯά͕͠΍͘͢ͳΔ

5ZQF4DSJQUΛ࢖͏ͱ w ίʔυิ׬͕௒ڧྗʹޮ͘Α͏ʹͳΔ w ୯ʹೖྗ͕؆୯ʹͳΔ͚ͩͰͳ͘υΩϡϝϯτ୅ΘΓʹͳΔͨΊ  ϓϩδΣΫτͷҾ͖ܧ͗΍৽͍͠ϥΠϒϥϦΛ࢖͏৔߹ʹ΋༗ޮ w ՕॴΛมߋ͢Δͱؔ࿈͢Δͱ͜Ζ͕ܕΤϥʔʹͳΔͨΊ  ϦϑΝΫλϦϯά͕͠΍͘͢ͳΔ w
ίʔυͷهड़ྔ͕૿͑ͯ։ൃεϐʔυ͕མͪΔʁʁ

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ
ʢ͍͍ͩͨ͜Μͳײͩ͡Ζ͏ͱ͍͏ਤ  ɹɹͳͷͰ͋·Γ৴༻͠ͳ͍Ͱ͍ͩ͘͞ʣ

w جຊͱͳΔ8FC"1*΍3FBDUͷجຊ ίϯϙʔωϯτ͸UZQFTDSJQUMJC΍  !UZQFTSFBDUʹఆٛࡁΈ w ϥΠϒϥϦ΋Ͱ͖ΔݶΓܕఆٛͷ͋Δ΋ ͷΛ࢖͏

w جຊͱͳΔ8FC"1*΍3FBDUͷجຊ ίϯϙʔωϯτ͸UZQFTDSJQUMJC΍  !UZQFTSFBDUʹఆٛࡁΈ w ϥΠϒϥϦ΋Ͱ͖ΔݶΓܕఆٛͷ͋Δ΋ ͷΛ࢖͏ w 6*$PNQPOFOUʹ͍ͭͯ͸QSPQTΛ্ ख͘ܧঝͨ͠ΓTUZMFEDPNQPOFOUT Λ࢖͑͹ඞཁ࠷খݶͰࡁΉ

w جຊͱͳΔ8FC"1*΍3FBDUͷجຊ ίϯϙʔωϯτ͸UZQFTDSJQUMJC΍  !UZQFTSFBDUʹఆٛࡁΈ w ϥΠϒϥϦ΋Ͱ͖ΔݶΓܕఆٛͷ͋Δ΋ ͷΛ࢖͏ w 6*$PNQPOFOUʹ͍ͭͯ͸QSPQTΛ্ ख͘ܧঝͨ͠ΓTUZMFEDPNQPOFOUT Λ࢖͑͹ඞཁ࠷খݶͰࡁΉ w 4UBUFͷઃܭ΍֎քͱͷ௨৴͸υϝΠ ϯ஌ࣝͰ͋Γࣗ෼ͨͪͰఆٛ͢Δ

w جຊͱͳΔ8FC"1*΍3FBDUͷجຊ ίϯϙʔωϯτ͸UZQFTDSJQUMJC΍  !UZQFTSFBDUʹఆٛࡁΈ w ϥΠϒϥϦ΋Ͱ͖ΔݶΓܕఆٛͷ͋Δ΋ ͷΛ࢖͏ w 6*$PNQPOFOUʹ͍ͭͯ͸QSPQTΛ্ ख͘ܧঝͨ͠ΓTUZMFEDPNQPOFOUT Λ࢖͑͹ඞཁ࠷খݶͰࡁΉ w 4UBUFͷઃܭ΍֎քͱͷ௨৴͸υϝΠ ϯ஌ࣝͰ͋Γࣗ෼ͨͪͰఆٛ͢Δ w 4UBUF͕มΘΔͱ$POUBJOFS $PNQPOFOUT΋มΘΔͷͰෆ҆ఆ

3FBDU)PPLT͕  ༩͑ͨӨڹ

3FBDU)PPLT w 3FBDU ϦϦʔε Ͱొ৔ͨ͠'VODUJPO$PNQPOFOU಺ͰͷΈ࢖ ͑Δ"1*܈ w 'VODUJPO$PNQPOFOUͰ$MBTT$PNQPOFOU૬౰ͷಈ͖ΛͰ͖ΔΑ͏ʹ͢ ΔͨΊʹ։ൃ͞Ε͕ͨɺͦΕ͚ͩʹͱͲ·Βͳ͍දݱྗ͕͋Δ

)0$ )PPLT ྫSFBDUSFEVY )PPLTҎલ w DPOOFDUͱ͍͏)0$ ߴ֊ίϯϙʔω ϯτίϯϙʔωϯτΛฦ͢ίϯϙʔω ϯτ ͰίϯϙʔωϯτΛғͬͯ
QSPQTʹ஋Λ஫ೖ w ͲͷΑ͏ͳQSPQT͕஫ೖ͞ΕΔ͔஫ҙ ͕ඞཁ )PPLTΛ࢖͏ͱ w VTF4FMFDUPSVTF%JTQBUDIͱ͍͏  )PPLTΛ࢖͍SFOEFS಺Ͱ஋Λ஫ೖ w QSPQTΛհ͓ͯ͠ΒͣɺSFOEFSΛݟΕ͹  શ͕ͯ෼͔Δ

)0$ )PPLT )0$ͷσʔλ͸QSPQTΛհͯ͠౉͞ΕΔ ͨΊɺෳ਺Օॴʹಉ͡ఆ͕ٛݱΕͯ͠·͏ ʢ3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳʣ w 3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳ w 3FOEFS1SPQTΛ࢖͑͹ղܾͰ͖Δ͕  ωετ͸ਂ͘ͳΔ
ܕఆٛ৑௕ʹͳͬͪΌ͏໰୊

ܕఆٛ৑௕ʹͳͬͪΌ͏໰୊ )0$ )PPLT )0$ͷσʔλ͸QSPQTΛհͯ͠౉͞ΕΔ ͨΊɺෳ਺Օॴʹಉ͡ఆ͕ٛݱΕͯ͠·͏ ʢ3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳʣ w 3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳ w 3FOEFS1SPQTΛ࢖͑͹ղܾͰ͖Δ͕ 
ωετ͸ਂ͘ͳΔ QSPQTΛհͣ͞σʔλ͕ड͚औΕ  ܕਪ࿦͞ΕΔͷͰίϯϙʔωϯτଆͰ  ࠶ఆ͍ٛͯ͠ͳ͍

3FBDU)PPLTͱ͸݁ہԿͳͷ͔ )0$ )PPLT SFOEFS SFOEFS )PPLTҎલ w ਌ίϯϙʔωϯτ΍)0$͔Β౉͞ΕΔ QSPQT͕มԽ͢Δ͜ͱͰ࠶SFOEFS w
$MBTT$PNQPOFOUͰ͸TFU4UBUFͰ  ࣗ෼ࣗ਎ͷSFOEFSΛଅ͢͜ͱ͕ग़དྷͨ )PPLTΛ࢖͏ͱ w QSPQTΛհͣ͞ʹ஋Λ஫ೖͰ͖Δ w SFOEFS಺ʹॻ͍ͨ)PPLTʹΑͬͯ  ࣗ෼ࣗ਎͕࠶SFOEFS͞ΕΔՄೳੑ͕͋Δ SFOEFS͕ԿͰ΋Ͱ͖ͯ͠·͏ͷ͸͕ͩ ܕਪ࿦͠΍͘͢5ZQF4DSJQUͱ͸૬ੑ͕͍͍

w جຊͱͳΔ8FC"1*΍3FBDUͷجຊ ίϯϙʔωϯτ͸UZQFTDSJQUMJC΍  !UZQFTSFBDUʹఆٛࡁΈ w ϥΠϒϥϦ΋Ͱ͖ΔݶΓܕఆٛͷ͋Δ΋ ͷΛ࢖͏ w 6*$PNQPOFOUʹ͍ͭͯ͸QSPQTΛ্ ख͘ܧঝͨ͠ΓTUZMFEDPNQPOFOUT Λ࢖͑͹ඞཁ࠷খݶͰࡁΉ w 4UBUFͷઃܭ΍֎քͱͷ௨৴͸υϝΠ ϯ஌ࣝͰ͋Γࣗ෼ͨͪͰఆٛ͢Δ w 4UBUF͕มΘΔͱ$POUBJOFS $PNQPOFOUT΋มΘΔͷͰෆ҆ఆ

w جຊͱͳΔ8FC"1*΍3FBDUͷجຊ ίϯϙʔωϯτ͸UZQFTDSJQUMJC΍  !UZQFTSFBDUʹఆٛࡁΈ w ϥΠϒϥϦ΋Ͱ͖ΔݶΓܕఆٛͷ͋Δ΋ ͷΛ࢖͏ w 6*$PNQPOFOUʹ͍ͭͯ͸QSPQTΛ্ ख͘ܧঝͨ͠ΓTUZMFEDPNQPOFOUT Λ࢖͑͹ඞཁ࠷খݶͰࡁΉ w 4UBUFͷઃܭ΍֎քͱͷ௨৴͸υϝΠ ϯ஌ࣝͰ͋Γࣗ෼ͨͪͰఆٛ͢Δ w 4UBUF͕มΘΔͱ$POUBJOFS $PNQPOFOUT΋มΘΔͷͰෆ҆ఆ  ˠ)PPLTΛ࢖͑͹৑௕ͳܕఆٛ͸ෆཁ

(SBQI2-Λ࢖ͬͨ  ίʔυࣗಈੜ੒

"QPMMP$MJFOU w (SBQI2-ΫϥΠΞϯτʢ3FBDUҎ֎ʹ΋ରԠʣ w ಠࣗͷΩϟογϡػߏΛ࣋ͪɺ௨৴ʹؔ͢Δ4UBUFΛ಺෦Ͱ࣋ͬͯ͘ΕΔ w SFBDUBQPMMPIPPLTͱ͍͏αʔυύʔςΟϥΠϒϥϦ͕ଘࡏ͍͕ͯͨ͠  ʹ!BQPMMPSFBDUIPPLT͕ొ৔͠ެࣜʹ3FBDU)PPLTରԠ

"QPMMP$MJFOU w (SBQI2-ΫϥΠΞϯτʢ3FBDUҎ֎ʹ΋ରԠʣ w ಠࣗͷΩϟογϡػߏΛ࣋ͪɺ௨৴ʹؔ͢Δ4UBUFΛ಺෦Ͱ࣋ͬͯ͘ΕΔ w SFBDUBQPMMPIPPLTͱ͍͏αʔυύʔςΟϥΠϒϥϦ͕ଘࡏ͍͕ͯͨ͠  ʹ!BQPMMPSFBDUIPPLT͕ొ৔͠ެࣜʹ3FBDU)PPLTରԠ w 5ZQF4DSJQUͰ࣮૷͞Ε͓ͯΓܕఆ͕ٛ࢖͑Δ͕ 
(SBQI2-εΩʔϚʹ߹ΘͤͯຖճखಈͰܕఆٛ͢Δͷ͸େม

(SBQI2-͔Βίʔυࣗಈੜ੒ w (SBQI2-$PEF(FOFSBUPSΛ࢖͏ͱHSBQIRMʹఆٛͨ͠εΩʔϚ͔Β  ܕఆٛͱҾ਺͕౉͞Εͨঢ়ଶͷ)PPLTΛੜ੒ͯ͘͠ΕΔ w "QPMMP$PEFHFO "NQMJGZ$PEFHFOͳͲ΋͋Δ͕ݱঢ়Ұ൪࢖͍উख͕ྑ͔ͬͨ

σϞ w ͕࣌ؒ͋Ε͹

(SBQI2-εΩʔϚͱ  6*$PNQPOFOUͷઃܭ  ʹ͚ͩूத͢Ε͹͍͍ʂʂ

͓·͚3&45"1*ͷ৔߹ w 0QFO"1* 4XBHHFS (FOFSBUPSʹUZQFTDSJQUSFEVYRVFSZ͕௥Ճ͞Ε͍ͯͨ w αϯϓϧίʔυΛݟΔݶΓ"QPMMP$MJFOUʹࣅͨॻ͖ํͰॻ͚ͦ͏Ͱྑͦ͞͏ͩ ͕ɺ೔ຊޠͷ৘ใ͸ΨνͰͭ΋ͳͦ͞͏

·ͱΊ w3FBDU 5ZQF4DSJQUͳΒಋೖϋʔυϧ͸௿͍ w໘౗ͳͱ͜Ζ͸ܕਪ࿦ʹཔͬͨΓࣗಈੜ੒ͯ͠  ίʔυิ׬ͳͲͷϝϦοτ͚ͩڗड͠Α͏ w৑௕ͳܕఆ͕ٛཁΒͳ͘ͳͬͨͷ͸೥ʹొ৔ͨ͠  3FBDU)PPLT͕΋ͨΒٕͨ͠ज़తͳϒϨΠΫεϧʔ w͞Βʹ֎քͱͷ௨৴΍ؔ࿈͢Δ4UBUFΛࣗಈੜ੒  Ͱ͖ΔͱҰؾʹָʹͳΔ w
ͦͷ఺ݱঢ়͸(SBQI2-͕Ұาൈ͖Μग़͍ͯΔ

એ఻ w ୅ʑ໦3FBDU/BUJWF΋͘΋͘ձ໌೔։࠵͠·͢ʂ

TypeScript と React Hooks と GraphQL のステキな関係性

TypeScript と React Hooks と GraphQL のステキな関係性

Yudai Shinnoki

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5ZQF4DSJQUͱ 3FBDU)PPLTͱ (SBQI2-ͷεςΩͳؔ܎ੑ .FHVSPFT :VEBJ4IJOOPLJ

ࣗݾ঺հ ਐ໦ɹ༟େ LPOPLJ@OBOOPLJ TIJOOPLJ גࣜձࣾQBMBOΤϯδχΞ w 3FBDU ͓΋ʹ3FBDU/BUJWF w

גࣜձࣾQBMBOʹ͍ͭͯ w גࣜձࣾQBMBO͸ɺ8FCͷઌ୺ٕज़ͷՄೳੑΛ୳ٻ͓ͯ͠Γ  ϒϥ΢β্Ͱಈ͘73"3 8FCY3 Λݚڀɺ։ൃ͍ͯ͠·͢

3FBDU 3FBDU/BUJWF ೥ͷ3FBDUͱ5ZQF4DSJQU w #BCFM ϦϦʔε ͔Β!CBCFMQMVHJOUSBOTGPSNUZQFTDSJQU௥Ճ w DSFBUFSFBDUBQQ΍SFBDUOBUJWFJOJU͕5ZQF4DSJQUςϯϓϨʔτΛఏڙ  ͨ͜͠ͱʹΑͬͯҰؾʹಋೖͷϋʔυϧ͕Լ͕ͬͨ

5ZQF4DSJQUͱ %FWFMPQFS&YQFSJFODF

5ZQF4DSJQUΛ࢖͏ͱ w ίʔυิ׬͕௒ڧྗʹޮ͘Α͏ʹͳΔ w ୯ʹೖྗ͕؆୯ʹͳΔ͚ͩͰͳ͘υΩϡϝϯτ୅ΘΓʹͳΔͨΊ  ϓϩδΣΫτͷҾ͖ܧ͗΍৽͍͠ϥΠϒϥϦΛ࢖͏৔߹ʹ΋༗ޮ w ՕॴΛมߋ͢Δͱؔ࿈͢Δͱ͜Ζ͕ܕΤϥʔʹͳΔͨΊ  ϦϑΝΫλϦϯά͕͠΍͘͢ͳΔ

5ZQF4DSJQUΛ࢖͏ͱ w ίʔυิ׬͕௒ڧྗʹޮ͘Α͏ʹͳΔ w ୯ʹೖྗ͕؆୯ʹͳΔ͚ͩͰͳ͘υΩϡϝϯτ୅ΘΓʹͳΔͨΊ  ϓϩδΣΫτͷҾ͖ܧ͗΍৽͍͠ϥΠϒϥϦΛ࢖͏৔߹ʹ΋༗ޮ w ՕॴΛมߋ͢Δͱؔ࿈͢Δͱ͜Ζ͕ܕΤϥʔʹͳΔͨΊ  ϦϑΝΫλϦϯά͕͠΍͘͢ͳΔ w

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

3FBDU)PPLT͕  ༩͑ͨӨڹ

3FBDU)PPLT w 3FBDU ϦϦʔε Ͱొ৔ͨ͠'VODUJPO$PNQPOFOU಺ͰͷΈ࢖ ͑Δ"1*܈ w 'VODUJPO$PNQPOFOUͰ$MBTT$PNQPOFOU૬౰ͷಈ͖ΛͰ͖ΔΑ͏ʹ͢ ΔͨΊʹ։ൃ͞Ε͕ͨɺͦΕ͚ͩʹͱͲ·Βͳ͍දݱྗ͕͋Δ

)0$ )PPLT ྫSFBDUSFEVY )PPLTҎલ w DPOOFDUͱ͍͏)0$ ߴ֊ίϯϙʔω ϯτίϯϙʔωϯτΛฦ͢ίϯϙʔω ϯτ ͰίϯϙʔωϯτΛғͬͯ

)0$ )PPLT )0$ͷσʔλ͸QSPQTΛհͯ͠౉͞ΕΔ ͨΊɺෳ਺Օॴʹಉ͡ఆ͕ٛݱΕͯ͠·͏ ʢ3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳʣ w 3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳ w 3FOEFS1SPQTΛ࢖͑͹ղܾͰ͖Δ͕  ωετ͸ਂ͘ͳΔ

ܕఆٛ৑௕ʹͳͬͪΌ͏໰୊ )0$ )PPLT )0$ͷσʔλ͸QSPQTΛհͯ͠౉͞ΕΔ ͨΊɺෳ਺Օॴʹಉ͡ఆ͕ٛݱΕͯ͠·͏ ʢ3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳʣ w 3FUVSO5ZQF౳Λ࢖ͬͯ޻෉͸Մೳ w 3FOEFS1SPQTΛ࢖͑͹ղܾͰ͖Δ͕

3FBDU)PPLTͱ͸݁ہԿͳͷ͔ )0$ )PPLT SFOEFS SFOEFS )PPLTҎલ w ਌ίϯϙʔωϯτ΍)0$͔Β౉͞ΕΔ QSPQT͕มԽ͢Δ͜ͱͰ࠶SFOEFS w

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

'SPOUFOE 1SJNJUJWF$PNQPOFOUT -JCSBSZ $POUBJOFS$PNQPOFOUT 4UBUF 6* $PNQPOFOUT 8FC"1* #BDLFOE ࣗ෼Ͱܕఆٛ͢Δൣғ

(SBQI2-Λ࢖ͬͨ  ίʔυࣗಈੜ੒

"QPMMP$MJFOU w (SBQI2-ΫϥΠΞϯτʢ3FBDUҎ֎ʹ΋ରԠʣ w ಠࣗͷΩϟογϡػߏΛ࣋ͪɺ௨৴ʹؔ͢Δ4UBUFΛ಺෦Ͱ࣋ͬͯ͘ΕΔ w SFBDUBQPMMPIPPLTͱ͍͏αʔυύʔςΟϥΠϒϥϦ͕ଘࡏ͍͕ͯͨ͠  ʹ!BQPMMPSFBDUIPPLT͕ొ৔͠ެࣜʹ3FBDU)PPLTରԠ

(SBQI2-͔Βίʔυࣗಈੜ੒ w (SBQI2-$PEF(FOFSBUPSΛ࢖͏ͱHSBQIRMʹఆٛͨ͠εΩʔϚ͔Β  ܕఆٛͱҾ਺͕౉͞Εͨঢ়ଶͷ)PPLTΛੜ੒ͯ͘͠ΕΔ w "QPMMP$PEFHFO "NQMJGZ$PEFHFOͳͲ΋͋Δ͕ݱঢ়Ұ൪࢖͍উख͕ྑ͔ͬͨ

σϞ w ͕࣌ؒ͋Ε͹

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