Yet another simple logger - Speaker Deck

Yet another simple logger

by Kento Nagata

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©2018 Wantedly, Inc. Yet another simple logger 19.Apr.2018 - @ngtk, Kento Nagata

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©2018 Wantedly, Inc. Ӭా݈ਓ 8BOUFEMZ *OD&OHJOFFS !OHULOU !OHUL • Wantedly VisitͷΞϓϦΛ։ൃ͍ͯ͠·͢ • Swift/iOS։ൃΛ͸͡Ίͯ3ϲ݄͘Β͍ • ΋ͱ΋ͱ͸Railsͱ͔React/Reduxͱ͔΢Σϒͷ։ൃΛ΍͍ͬͯͨਓ • PotatotipsॳࢀՃ&ॳൃද ☺

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©2018 Wantedly, Inc. XcodeͷConsole log׆༻͍ͯ͠·͔͢ʁ

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©2018 Wantedly, Inc. ͳΔ΂͘σόοΨʔΛ࢖Θͣʹ  ؆୯ʹ໰୊Λղܾ͍ͨ͠

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©2018 Wantedly, Inc. => ϩάΛ׆༻͢Δ

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©2018 Wantedly, Inc. ͨͩɺݱঢ়ͷϩάػߏ͸ෆຬ͕͋Γ·ͨ͠

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©2018 Wantedly, Inc. 1. SwiftͰ͸print͔͠ͳ͍ͨΊɺ  ϥΠϒϥϦͷඪ४ग़ྗ͸ίϯτϩʔϧෆՄೳ 2. ϩάϨϕϧ͕ͳ͍ͨΊɺ  ͱΓ͋͑ͣprintͰݟͮΒ͘ͳͬͯ͘Δ ϩάػߏ΁ͷෆຬ

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©2018 Wantedly, Inc. ϥΠϒϥϦͰղܾ͢Δʁ

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©2018 Wantedly, Inc. ϩΪϯάͷϥΠϒϥϦ͸  ͍͔ͭ͋͘Γ·͢

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©2018 Wantedly, Inc. Swiftybeaver

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©2018 Wantedly, Inc. Pros • 3500 Star • ϩάϨϕϧʹରԠ (verbose, debug, info, warning, error) • ϑΝΠϧ΍ίϯιʔϧ΁ग़ྗͳͲඪ४Ͱ๛෋ͳग़ྗઌΦϓγϣϯΛ͍࣋ͬͯΔ • ϩάϨϕϧΛϑΟϧλϦϯάͰ͖ΔΞϓϦ͕͋Δ • ඇಉظͰͷग़ྗʹରԠ͍ͯ͠Δ • ϑΥʔϚοτͷઃఆ Swiftbeaver

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©2018 Wantedly, Inc. Cons • ΞϓϦͰจࣈྻΛίϐϖͰ͖ͳ͍ • ༗ྉͷϓϥοτϑΥʔϜ͕͋Γɺྑ͘΋ѱ͘΋ϩοΫΠϯ͞ΕΔՄೳੑ͋Γ • ֓Ͷྑ͍͚ͲɺΠϯλʔϑΣΠε͕ඍົͳͱ͜Ζ͕͋Δ Swiftbeaver

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©2018 Wantedly, Inc. ཉ͔ͬͨ͠΋ͷΛ੔ཧ͢Δ

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©2018 Wantedly, Inc. 1. ৘ใͷ༏ઌ౓΍ҙຯ෇͚Λ͢ΔͨΊɺ  ϩάϨϕϧ͕΄͍͠ • ඞཁʹԠͯ͡ϑΟϧλϦϯάͯ͠ɺඞཁͳ৘ใʹ؆୯ʹΞΫηε͍ͨ͠ 2. ग़ྗઌΛมߋՄೳʹ͍ͨ͠ • ֎෦ʹ౤͍͛ͨέʔε͕͋Δ • ϑΝΠϧग़ྗͯ͠֎෦ͰϑΟϧλϦϯά͍ͨ͠ ཉ͔ͬͨ͠΋ͷ

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©2018 Wantedly, Inc. 3. σόοάͱϦϦʔεͰڍಈΛ  ม͑ΒΕΔΑ͏ʹ͍ͨ͠ • ϦϦʔε΍ςετͰ͸ͳʹ΋͠ͳ͍ͳͲ੾Γସ͍͑ͨ ཉ͔ͬͨ͠΋ͷ

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©2018 Wantedly, Inc. ͜Ε͘Β͍ͩͬͨΒ  ࣗ෼Ͱ͔͚Δ͔΋ʁ

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©2018 Wantedly, Inc. LoggerProtocol

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©2018 Wantedly, Inc. LoggerProtocol extension

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©2018 Wantedly, Inc. LogContextProtocol and LogContext

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©2018 Wantedly, Inc. Logger

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©2018 Wantedly, Inc. LogLevel

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©2018 Wantedly, Inc. LogDestinationProtocol and StandardOut

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©2018 Wantedly, Inc. LogFormatterProtocol

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©2018 Wantedly, Inc. ͜͜·Ͱ͕ϥΠϒϥϦίʔυ

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©2018 Wantedly, Inc. ϓϩμΫτίʔυͰ͸  ग़ྗઌͱϑΥʔϚολʔΛࢦఆ͢Δ

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©2018 Wantedly, Inc. LogDestinationProtocol and StandardOut

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©2018 Wantedly, Inc. logger

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©2018 Wantedly, Inc. Console output

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©2018 Wantedly, Inc. ·ͱΊ

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©2018 Wantedly, Inc. 1. γϯϓϧͰ࢖͑ͦ͏ͳ΋ͷ͕Ͱ͖ͨ 2. ·࣮ͩݱͰ͖͍ͯͳ͍͜ͱ΋͋Δ • ඇಉظͷग़ྗ • ϑΟϧλϦϯάͷγΣϧεΫϦϓτ 3. ຊ౰͸SwiftͷΤίγεςϜશମͰ࢖ΘΕΔ΋ͷ  ͕΄͍͠ʂ ·ͱΊ