Nozomu Ikuta 24th May 2025 Standard Schema: εΩʔϚϥΠϒϥϦͷ౷Ұن֨ͱ͸Կ͔ 

εΩʔϚϥΠϒϥϦ࢖ͬͯ·͔͢ 

• Zod • Valibot • ArkType • etc. 

͍͟࢖͏ͱ՝୊΋͋Γ·͢ 

• ϩοΫΠϯ • ΞμϓλɺΞμϓλɺΞμϓλ… • etc. 

newmo Ͱ͸࢖ͬͯͳ͍Ͱ͢ 

Tierͷߟ͑ํ Tier 1 : ͜ΕΛࣺͯΔ࣌͸ίʔυΛҰ͔Β ॻ͖௚֮͢ޛΛ࣋ͭʮ৺த͢Δʯ૬ख Tier 2 : ࠩ͠ସ͑ʹ͸େ͖ͳ࿑ྗΛඞཁͱ ͢Δʮڧ͘ґଘ͢Δʯ૬ख Tier 3 : ͍ͣΕࠩ͠ସ͑Δ͜ͱΛ૝ఆͨ͠ ʮґଘΛܰ͘͢Δʯ૬ख Communication Design 32 Modular Monolith Monorepo ～ γϯϓϧ͞Λอͪͳ͕ΒmonorepoͷϝϦοτΛ࠷େԽ͢Δ ～ JSConf 2024 ΑΓ 

ఏڙػೳ͸΄΅ಉ͡ 

• ϥϯλΠϜόϦσʔγϣϯ • όϦσʔγϣϯͷResultܕ • όϦσʔγϣϯΤϥʔͷҰཡ • εΩʔϚͷܕਪ࿦ 

Standard Schema 

• Zod, Valibot, ArkType ͷ࡞ऀʹΑͬ ͯઃܭ͞Εͨ • StandardSchemaV1 ͱ͍͏୯Ұͷ interface ͓Αͼ namespace ͱͯ͠ ఆٛ͞Ε͍ͯΔ 

interface StandardSchemaV1 { readonly '~standard': StandardSchemaV1.Props; } export declare namespace StandardSchemaV1 { // ϓϩύςΟఆٛ
 } • APIίϯϑϦΫτճආͷͨΊ `~standard` ϓϩύςΟ഑Լʹ͢΂ͯఆٛ͢Δ 

interface Props { readonly version: 1; readonly vendor: string; readonly validate: ( value: unknown ) => Result | Promise>; readonly types?: Types | unde fi ned; } • όϦσʔγϣϯؔ਺ • εΩʔϚͷܕਪ࿦ 

type Result = SuccessResult | FailureResult; interface SuccessResult { readonly value: Output; readonly issues?: unde fi ned; } interface FailureResult { readonly issues: ReadonlyArray; } • όϦσʔγϣϯͷResultܕ • Τϥʔ͸issuesͱ͍͏഑ྻͰදݱ͢Δ 

interface Issue { readonly message: string; readonly path?: ReadonlyArray | unde fi ned; } interface PathSegment { readonly key: PropertyKey; } • όϦσʔγϣϯΤϥʔ • ͻͱͭͷΤϥʔ͸ϝοηʔδͱϓϩύςΟΩʔͰදݱ͢Δ 

interface Types { readonly input: Input; readonly output: Output; } type InferInput = NonNullable< Schema['~standard']['types'] >['input']; type InferOutput = NonNullable< Schema['~standard']['types'] >['output']; • εΩʔϚͷܕਪ࿦ 

·ͱΊ 

• Standard SchemaͰεΩʔϚϥΠϒϥϦͷ૬ޓӡ༻ੑ͕ߴ·Δ • ओཁͳεΩʔϚϥΠϒϥϦ͸͢ͰʹରԠࡁΈ • εΩʔϚϥΠϒϥϦͷࠩผԽ͕೉͘͠ͳΔ͔΋ʢʁʣ 

ࢀߟจݙ • https://github.com/standard-schema • https://github.com/colinhacks/zod • https://github.com/fabian-hiller/valibot • https://github.com/arktypeio/arktype • https://speakerdeck.com/yuisakamoto/modular-monolith-monorepo- sinpurusawobao-tinagaramonoreponomeritutowozui-da-hua-suru 

@nozomuikuta • ιϑτ΢ΣΞΤϯδχΞ • Vue.js-JP ڞಉΦʔΨφΠβʔ • UnJS ϝϯόʔ • Shibuya.go ओ࠵ 

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