モバイルアプリ向けAPI 開発を通じて学んだこと / learned-from-developing-mobile-app-api

by hypermkt

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όʔνʔ(.01FQBCP *OD 1)1FS,BJHJ ϞόΠϧΞϓϦ޲͚"1*  ։ൃΛ௨ֶͯ͡Μͩ͜ͱ

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όʔνʔ  !IZQFSNLU γχΞΤϯδχΞ ࣗݾ঺հ

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1)1FS,BJHJ͸࠙਌ձ-5ࢀՃ 1)1FS,BJHJ͸࠙਌ձ-5ࢀՃ

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(PPQFʹ͍ͭͯ wIUUQTHPPQFKQ  wॳ৺ऀ޲͚αʔϏε  ϗʔϜϖʔδ࡞੒αʔϏε  w໿ ਓͷϢʔβʔ༷͕ར༻

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࿩͢͜ͱ w എܠͱ໨త w ϞόΠϧ"1*։ൃͰࢲୡ͕৐Γӽ͑ͨน w ࣮ݱٕज़ͷબ୒ w "1*ઃܭ w ಡॻձʹΑΔڞ௨஌ࣝͷཱ֬ w 3&45GVM"1*ઃܭ w "1*ઃܭͰͷࣦഊɾɾɾ w -BSBWFM"1*ೝূͷ࣮૷ w ͦ΋ͦ΋0"VUIʹ͍ͭͯ w -BSBWFMʹ͓͚Δ0"VUIͷ࣮ݱํ๏ w Τϥʔ࣌ͷ"1*Ϩεϙϯεઃܭ w ·ͱΊ

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೥݄೔ϦϦʔε

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എܠ w(PPQF͸αʔϏε։͔࢝Β೥໨ͷϗʔϜϖʔδ࡞੒αʔϏε wطଘαʔϏε޲͚ͷJ04ΞϓϦ։ൃϓϩδΣΫτ w։ൃνʔϜͱͯ͠ຊ֨తͳϞόΠϧΞϓϦ։ൃ͸ॳ wߏ૝ʙϦϦʔε·Ͱ໿೥ͷ௕ظϓϩδΣΫτ

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J04ΞϓϦػೳ֓ཁ wϩάΠϯ wϗʔϜϖʔδ؅ཧػೳ w͓஌Βͤ؅ཧ w͓໰͍߹Θͤ؅ཧ wΞΫηεղੳ wϓογϡ௨஌ʹΑΔ͓໰͍߹Θͤ௨஌

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໨త wϞόΠϧΞϓϦ޲͚ͷ"1*Λ-BSBWFMΛར༻ͯ͠৽ن։ൃ wۤ࿑ͨ͠ɾ޻෉ͨ͠ɾ͏·͍͔͘ͳ͔ͬͨ఺Λ঺հ wࢲͷܦݧɾֶͼΛڞ༗͠օ͞Μͷྐʹͯ͠΋Β͍͍ͨ

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ͱ͋ΔطଘαʔϏεͰ ԿͰ͜ΕΛ࢖͍ͬͯΔΜͩΖ͏ʁ  ͋ΕͳΒ΋ͬͱྑ͔ͬͨͷʹ

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طଘαʔϏεͷྺ࢙ʹ͓͍ͯ  ୭͔͕ٕज़બఆΛͯ͠ࠓ͕͋Δ

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৽نαʔϏε։ൃ࣌͸ٕज़બఆͷ࿈ଓ

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݁ߏେมͰ͢

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ͳͥେม͔ wܾΊΔ͜ͱ͕ଟ͍ w෯޿͍஌͕ࣝඞཁ wٕज़બఆ͸Ұ౓ܾΊΔͱ಺༰ʹΑͬͯ͸؆୯ʹ͸  มߋͰ͖ͳ͍ wࣗ෼͕ܾΊͨબ୒͕ਖ਼͍͠ͷ͔ෆ҆

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Ͳ͏͢Ε͹ࣦഊͤͣʹٕज़બఆ͕ Ͱ͖Δ͔ʁ

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ʲେલఏʳ    αʔϏεཁ݅ͷ໢ཏੑ

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αʔϏεཁ݅ w୭ͷͨΊʹطଘϢʔβʔ wͳͥ˓˓ͷ໰୊Λղܾ͢ΔͨΊ wԿΛ˘˘ΛఏڙΛ͢Δ w͍ͭ˚݄ࠒϦϦʔε

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ٕज़બఆͷϙΠϯτ wαʔϏεཁ݅Λຬͨ͢ͷ͔ w։ൃνʔϜͰӡ༻Ͱ͖Δ͔ Ϟνϕʔγϣϯͱ΋ؔ܎ wֶशίετ wকདྷੑ wεέʔϧ͢Δ͔ wඞཁੑ

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ܾΊํ wީิΛग़ͯ͠৚݅Λ·ͱΊΔ wͦͯ͠࠷ऴީิΛબఆ͠ඞવੑͷཧ༝Λड़΂Δ

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8FCϑϨʔϜϫʔΫͷબ୒ྫ w ཁ݅ຬͨ͢ w ։ൃνʔϜͱͷ਌࿨ੑશһ1)1FS-BSBWFM޷͖ͳਓ΋͍Δ w ඞཁՄ൱ඞཁ ंྠͷ࠶ൃ໌͸ͨ͘͠ͳ͍ w কདྷੑ༗Γ w ީิ-BSBWFM -VNFO w -VNFO͸ཁ݅Λຬͨͨ͢Ίʹ޻෉΍ௐ੔͕ඞཁɺ-BSBWFM1BTTQPSUΛ  ඇαϙʔτ w 1)1FS,BJHJͷ-BSBWFM૬ஊձͰZUBLF͞Μʹ૬ஊܾͯ͠Ίͨ -BSBWFM͔ΒίϯϙʔωϯτΛҾ͘ͷ͸؆୯͕ͩ-VNFOʹ଍͢ͷ͸ࠔ೉

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-BSBWFMʹܾఆ

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·ͱΊ wϩδοΫΛ૊ΜͰٕज़બఆΛߦͬͨ wେࣄͳ͜ͱ͸ࣗ෼ͷݴ༿Ͱඞવੑͷཧ༝Λ͔ͬ͠Γ ड़΂Δ w໎ͬͨΒৄ͍͠ਓʹҙݟΛٻΊΔ w͕͔ͩ͠͠ɺਖ਼௚બ୒ͨ݁͠Ռ͕੒ޭ͔ͨ͠͸  ཱ͕࣌ؒͨͳ͍ͱ෼͔Βͳ͍͜ͱ΋͋Δ wࣗ৴Λ࣋ͭ

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ಡॻձʹΑΔڞ௨ೝࣝͷཱ֬

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՝୊ wͪΌΜͱͨ͠"1*ઃܭɾ։ൃ͕։ൃνʔϜશһະܦݧ w"1*։ൃऀɾΞϓϦΤϯδχΞؒͰڞ௨ͷ஌͕ࣝແ͍ wࠓޙ"1*ઃܭɾ։ൃ͕Ͱ͖Δͷ͔ෆ҆

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8FC"1*5IF(PPE1BSUT ಡॻձ

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8FC"1*5IF(PPE1BSUT w8FC"1*ʹ͍ͭͯ෯޿͘ղઆ w ΤϯυϙΠϯτઃܭ w ϦΫΤετͷܗࣜ w Ϩεϙϯεσʔλͷઃܭ w )551εςʔλεͷ࢓༷ w ηΩϡϦςΟ SFGTIUUQTXXXPSFJMMZDPKQCPPLT

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ಡॻձͰ஌ࣝͷఈ্͛ wܦඅͰશһ෼ߪೖ wຖ೔෼։ൃνʔϜશһͰಡΉ wϲ݄Ͱಡഁ w୹ظؒʜ

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ಡॻձͷ੒Ռ w໛ൣͱͳΔ"1*ઃܭͷجૅ஌ࣝશൠֶ͕΂ͨ w"1* ΞϓϦΤϯδχΞؒͰڞ௨ݴޠ͕Ͱ͖ٞ࿦  Ͱ͖Δঢ়ଶʹͳͬͨ wୠ͠׬ᘳͰ͸ͳ͍ɻ͋͘·Ͱجૅɻ

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Αʔ͠ɺ"1*ͷઃܭΛ͢Δͧʔ

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"1*ઃܭͬͯԿͰ΍Γ·͢ʁ  ԿͰυΩϡϝϯτʹ࢒͠·͢ʁ  εϓϨουγʔτ 8JLJ

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3&45GVM"1*ઃܭ

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՝୊ 3&45GVM"1*ઃܭ  "1*։ൃऀɾΞϓϦΤϯδχΞؒͰͲͷΑ͏ʹͯ͠"1*ઃܭ Λڠٞ͢Δͷ͔  "1*υΩϡϝϯτ  ܾ·ͬͨ"1*ઃܭΛͲͷΑ͏ʹυΩϡϝϯτͱͯ͠  ؅ཧɾڞ༗͢Δͷ͔

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"1*ઃܭʹٻΊΔ΋ͷ w1VMM3FRVFTUϕʔεͰ૬ޓʹϨϏϡʔΛ͍ͨ͠ w੒Ռ෺Ͱ͋Δઃܭॻ͸Մಡੑͷߴ͍υΩϡϝϯτʹ͍ͨ͠

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4XBHHFSͱ͸ w3&45GVM"1*Λߏங͢ΔͨΊͷϑϨʔϜϫʔΫ w4XBHHFS4QFD &EJUPS 6* $PEFHFOͳͲͷπʔϧ܈Ͱ ։ൃΛαϙʔτ

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4XBHHFS4QFDͰ"1*ઃܭ wZBNMϑΝΠϧͰઃܭΛఆٛ w13্Ͱ"1*։ൃऀɾΞϓϦΤϯδχΞ૒ํͰϨ Ϗϡʔ SFGTIUUQTTXBHHFSJPEPDTTQFDJpDBUJPOBEEJOHFYBNQMFT

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4XBHHFS&EJUPSΛ"1*υΩϡϝϯτʹ

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πʔϧ͸͋͘·Ͱπʔϧ ຊ࣭తͳ՝୊͸  ཁ݅Λຬͨ͢ઃܭ͕Ͱ͖Δ͔

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"1*ઃܭͰ਺ʑͷࣦഊΛ͢Δʜ

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"1*ઃܭ͕Ұ൪ۤ࿑͠·ͨ͠

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਺ʑͷࣦഊΛॏͶΔʜ w࣮͸λοϓͰ͖Δ࢓༷Λݟམͱ͢ wը໘্ͷ਺ࣈͷҙຯΛऔΓҧ͑Δ w˛Λݟམͱ͢

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݁࿦ "1*ઃܭΛ͢Δલʹ  σβΠφʔɾΫϥΠΞϯτɾ"1*։ൃऀͷ  ೝࣝΛ߹ΘͤΔ͜ͱ͕େ੾

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"1*ઃܭͷֶͼ w͍͖ͳΓ"1*ઃܭʹೖΒͳ͍ wσβΠφʔɾΫϥΠΞϯτɾ"1*։ൃऀͰ  ը໘Λݟͳ͕Βཁ݅Λඞͣ֬ೝΛ͢Δ  ʢ1SPUUͳͲͰಈ͖΋֬ೝͰ͖Δͱঘྑ͍ʣ "1*ઃܭͰೝࣝҧ͍ͷ··࣮૷ʹೖΔͱΞϓϦͱ݁߹͢Δ·Ͱ໰୊ʹؾ͔ͮͳ͍ɻ ͱʹ͔͘"1*ઃܭʹ͸૒ํͷཧղʹ࣌ؒΛ͔͚Δ͕٢ɻ

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࿩͢͜ͱ w എܠͱ໨త w ϞόΠϧ"1*։ൃͰࢲୡ͕৐Γӽ͑ͨน w ࣮ݱٕज़ʢ8FCϑϨʔϜϫʔΫʣͷબ୒ w "1*ઃܭ w ಡॻձʹΑΔڞ௨஌ࣝͷཱ֬ w 3&45GVM"1*ઃܭ w "1*ઃܭͰͷࣦഊɾɾɾ w -BSBWFM"1*ೝূͷ࣮૷ w ͦ΋ͦ΋0"VUIʹ͍ͭͯ w -BSBWFMʹ͓͚Δ0"VUIͷ࣮ݱํ๏ w Τϥʔ࣌ͷ"1*Ϩεϙϯεઃܭ w ·ͱΊ

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αʔϏεͷϩάΠϯ*%18ͰϩάΠϯ͍ͨ͠

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"1*ೝূ w ϩάΠϯपΓͷ"1*ೝূʹ͸ɺ0"VUI͕ඪ४తͳ࢓༷ w 8FC"1*ʹ͓͍ͯ޿͘Ұൠతʹར༻͞Ε͍ͯΔ

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ͦ΋ͦ΋0"VUIʹ͍ͭͯ

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ͦ΋ͦ΋0"VUIʹ͍ͭͯ w 0"VUIͱ͸ɺ8FCαʔόʔʹ͋ΔϢʔβʔͷϦιʔε΁ͷ ΞΫηεݖݶΛɺϢʔβʔͷ୅ཧͰߦ͏͜ͱΛڐՄ͢Δ  ͨΊͷೝূ༻ͷϓϩτίϧͷ͜ͱͰ͋Δ ग़య8FCMJPࣙॻ ؆୯ʹݴ͑͹ɺଞͷΞϓϦʹΞΫηεݖΛ༩͑Δ࢓૊Έ

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αʔϏεͷϩάΠϯ*%18ͰϩάΠϯ͍ͨ͠

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0"VUI  3FTPVSDF0XOFS1BTTXPSE$SFEFOUJBMT(SBOU w 0"VUIͷೝূํࣜͷҰͭ w Ϣʔβʔ໊ͱύεϫʔυΛड͚औΓΞΫηετʔΫϯΛൃߦ͢Δ   ΫϥΠΞϯτ   Ϧιʔε  αʔόʔ   ೝՄαʔόʔ Ϣʔβʔ ᶃೝূ৘ใΛೖྗ ᶄΞΫηετʔΫϯͷϦΫΤετΛૹ৴ ᶅΞΫηετʔΫϯ͸͜ΕͰ͢ʔ ᶆσʔλ͍ͩ͘͞

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-BSBWFMʹ͓͚Δ0"VUIͷ࣮ݱํ๏

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-BSBWFM1BTTQPSU࠾༻ͷཧ༝ w 1BTTQPSU͸0"VUIαʔόʔͱ"1*ೝূύοέʔδ w -BSBWFMެࣜ w ಋೖ͕؆୯ w ֤छ(SBOU5ZQFʹରԠ w υΩϡϝϯτ͕ॆ࣮ ೔ຊޠ຋༁༗Γ

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՝୊

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՝୊ w -BSBWFM1BTTQPSUͷσϑΥϧτઃఆͱ͍Ζ͍ΖҟͳΔ w ϩάΠϯ৘ใΛอ࣋͢Δςʔϒϧ໊ w Ϣʔβʔ໊ɾύεϫʔυΛอ࣋͢ΔΧϥϜ໊ w ύεϫʔυͷೝূํࣜ

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1BTTQPSUσϑΥϧτͱҟͳΔ఺ 1BTTQPSU (PPQF ςʔϒϧ໊ VTFST U@VTFS ྫ Ϣʔβʔ໊ VTFSOBNF MPHJO@JE ྫ ೝূํ๏ CDSZQU ಠࣗ

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υΩϡϝϯτʹ͸ೝূͷมߋํ๏ʹ͍ͭͯ  هࡌ͕ແ͍

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            3FRVFTU 3FTQPOTF "QQMJDBUJPO $POUSPMMFS .JEEMFXBSF ೝূΨʔυ 4FTTJPO(VBSE 5PLFO(VBSE 6TFS1SPWJEFS %# "VUIFOUJDBUF ͜ͷ3FRVFTU  ௨ͯ͠΋͍͍ʁ ͜ͷೝূ৘ใͷϢʔβʔͬͯ  %#ʹ͋Δʁ 4&-&$5'30.VTFST  8)&3&VTFSOBNFbYY`  QBTTXPSEbZZ` ͲͷΑ͏ʹϢʔβʔ৘ใΛऔಘ͢Δ͔Λఆٛ ϢʔβʔϓϩόΠμʔ ϦΫΤετຖʹͲͷΑ͏ʹϢʔβʔΛ  ೝূ͢Δ͔Λఆٛ ਤղ

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            3FRVFTU 3FTQPOTF "QQMJDBUJPO $POUSPMMFS .JEEMFXBSF ೝূΨʔυ 4FTTJPO(VBSE 5PLFO(VBSE 1BTTQPSU  5PLFO(VBSE 6TFS1SPWJEFS %# "VUIFOUJDBUF ͲͷΑ͏ʹϢʔβʔ৘ใΛऔಘ͢Δ͔Λఆٛ ϢʔβʔϓϩόΠμʔ ϦΫΤετຖʹͲͷΑ͏ʹϢʔβʔΛ  ೝূ͢Δ͔Λఆٛ -BSBWFMa1BTTQPSU  a#SJEHFa6TFS3FQPTJUPSZ 0"VUIೝূͳΒ೚ͤͯ -BSBWFM1BTTQPSUͰͷ  Ϣʔβʔऔಘ͢ΔͰ ਤղ

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Ϣʔβʔ৘ใͷऔಘ

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ύεϫʔυೝূ

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طଘͷ࢓༷ʹ߹ΘͤͨϞσϧΛ༻ҙͯ͠ɺ  ॲཧΛΦʔόʔϥΠυ͠ɺ  ͦΕΛϢʔβʔϓϩόΠμʔࢦఆ͢Ε͹  Ͱ͖ͦ͏

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            3FRVFTU 3FTQPOTF "QQMJDBUJPO $POUSPMMFS .JEEMFXBSF ೝূΨʔυ 4FTTJPO(VBSE 5PLFO(VBSE 1BTTQPSU  5PLFO(VBSE %# "VUIFOUJDBUF ͲͷΑ͏ʹϢʔβʔ৘ใΛऔಘ͢Δ͔Λఆٛ ϢʔβʔϓϩόΠμʔ ϦΫΤετຖʹͲͷΑ͏ʹϢʔβʔΛ  ೝূ͢Δ͔Λఆٛ -BSBWFMa1BTTQPSUa#SJEHFa6TFS3FQPTJUPSZ 0"VUIೝূͳΒ೚ͤͯ /FX1SPWJEFS 6TFS1SPWJEFS

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U@BDDPVOUςʔϒϧ͕͋ͬͨͱ͢Δ

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Ϣʔβʔೝূ༻ͷ&MPRVFOUϞσϧΛ༻ҙ w "VUIFOUJDBUBCMFΛܧঝɻ  ͜Ε͕ແ͍ͱೝূ༻ϞσϧʹͳΒͳ͍ɻ w 1BTTQPSUͷ)BT"QJ5PLFOτϨΠτΛ  Πϯϙʔτ

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pOE'PS1BTTQPSUΛΦʔόʔϥΠυ wطଘͷςʔϒϧઃܭʹ߹ΘͤͨϢʔβʔऔಘํࣜʹมߋ

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WBMJEBUF'PS1BTTQPSU1BTTXPSE(SBOUΛ࣮૷ w طଘͷςʔϒϧઃܭʹ߹Θͤͨύεϫʔυೝূํࣜʹมߋ wʲ஫ҙʳ͜Ε͸ྫͰ͢

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ઐ༻ͷϢʔβʔϓϩόΠμʔʹ੾Γସ͑ DPOpHBVUIQIQ ᶃϢʔβʔϓϩόΠμʔΛ  ௥Ճ͢Δ ᶄ1BTTQPSUESJWFSͷ  ϢʔβʔϓϩόΠμʔΛ੾Γସ͑Δ

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ೝূͰ͖ΔΑ͏ʹͳͬͨ

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ϚχϡΞϧʹશͯஸೡʹ͸ॻ͔Ε͍ͯͳ͍    ιʔείʔυΛݟͯ࢓༷Λ೺Ѳ͢Δ͜ͱ΋ඞཁ

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՝୊ w 3&45GVM"1*ͰͷΤϥʔϋϯυϦϯά͸)551εςʔλε ίʔυͰ͓͓Αͦ൑அՄ w ͔͠͠ɺΞϓϦέʔγϣϯݻ༗ͷΤϥʔͩͬͨ৔߹͸ )551εςʔλείʔυ͚ͩͰ͸දݱग़དྷͳ͍

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͍ͨ͜͠ͱ w ΫϥΠΞϯτ͕ϋϯυϦϯά͠΍͍͢TUSJOH΍JOUͷΤ ϥʔίʔυϑΟʔϧυ DPEF Λฦ͢ w ΞϓϦΤϯδχΞ͔Βͷཁ๬Ͱશͯͷύλʔϯʹ͓͍ͯ  ڞ௨ͷΤϥʔϨεϙϯεॻࣜͱ͢Δ

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-BSBWFMͰͷ࣮૷ํ๏ w -BSBWFM͔Βಋೖ͞Εͨ *MMVNJOBUFa$POUSBDUTa4VQQPSUa3FTQPOTBCMF  ΠϯλʔϑΣʔεΛར༻ͯ͠ྫ֎ΫϥεͱϨεϙϯεΛ  ؔ࿈෇͚Δ w "QQa&YDFQUJPOTa)BOEMFSΫϥεͷSFOEFSϝιουͰ ϨεϙϯεΛ੍ޚ͢Δ

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3FTQPOTBCMFΠϯλʔϑΣʔε w 3FTQPOTBCMFΠϯλʔϑΣʔεͷUP3FTQPOTFϝιουΛ࣮૷ w ΞϓϦέʔγϣϯ಺͔Βྫ֎ΛUISPX͢Ε͹ࢦఆͷϨεϙϯε͕  ฦ٫Ͱ͖Δ 0SJHJOBM  3FTQPOTF $POUSPMMFST 3FTQPOTBCMF UISPX όʔϯ { "title": "width and height is required", "code": "wrong_query_parameter" } Ϩεϙϯεྫ

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ࢦఆҎ֎͸-BSBWFMඪ४ͷΤϥʔϨεϙϯε͕ฦΔ { "message": "Server Error” } w ΫϥΠΞϯτଆ ϞόΠϧΞϓϦ ͱͯ͠͸ڞ௨Խ͞Εͳ͍ͱ  ΤϥʔϋϯυϦϯά͕͠ਏ͍ͱ͍͏՝୊͕͋ͬͨ

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"QQa&YDFQUJPOa)BOEMFSͷSFOEFSϝιου w ྫ֎Τϥʔ͕ൃੜ͢ΔͱSFOEFSͰϨεϙϯεΛ੍ޚͯ͠ฦ͢ w ྫ֎λΠϓʹԠͯ͡޷͖ʹϨεϙϯεΛฦͯ͠ྑ͍ refs: https://readouble.com/laravel/5.8/ja/errors.html

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ΤϥʔϨεϙϯεͷڞ௨Խྫ "QQa&YDFQUJPOTa)BOEMFS ຊདྷ͸਌ΫϥεͰॲཧ͞Ε͍͕ͯͨɺ SFOEFSϝιου಺Ͱ3FTQPOTBCMFΛ  ॲཧ͢ΔͨΊʹඞཁ

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ΤϥʔϨεϙϯεͷڞ௨Խ "QQa&YDFQUJPOTa)BOEMFS 3FTQPOTBCMFҎ֎͸ࢦఆͷϨεϙϯεΛฦ͢

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·ͩ·ͩ՝୊͸͋Δ w ࠓ೔঺հͨ͠ͷ͸࠷௿ݶͷҰྫ w ೝূ࣌ͷΤϥʔɺΞϓϦέʔγϣϯಛ༗Τϥʔɺ)551ܥ ϨεϙϯεΤϥʔͳͲରԠ΋ඞཁ

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ৄ͘͠͸2JJUBʹ·ͱΊ·ͨ͠ refs: https://qiita.com/hypermkt/items/78e878bb38cc63e40b2b

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·ͱΊ w ৽ن։ൃ࣌͸બ୒ͷ࿈ଓɻཁ݅ɾকདྷੑɾܧଓతͳӡ༻ͳͲ  ༷ʑͳࢹ఺Ͱͷݕ౼Λܾͯ͠ΊΔɻ w ϚχϡΞϧʹͳ͚Ε͹ίʔυΛಡΉɻ w ϞόΠϧΞϓϦ։ൃ࣌͸"1*ɾϞόΠϧΞϓϦΤϯδχΞͱͷ  ૬ޓཧղɾڞ௨ೝࣝͱίϛϡχέʔγϣϯ͕ඞཁɻ w ΞϓϦͷಛੑΛཧղͯ͠ΞϓϦΤϯδχΞͱڠྗͯ͠։ൃ͕ඞཁɻ

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࠷৽ͷ࠾༻৘ใΛνΣοΫˠ !QC@SFDSVJU