JSONタイプのスケッチ

手動で調整する前に、サンプル JSON から TypeScript インターフェイスをスケッチします。

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What this page is good for

Use this page when sample JSON needs to become a first draft of type definitions faster than writing the structure by hand.

It is best for creating a starting point that saves time during schema exploration, not as a substitute for a carefully modeled domain type system.

Good fit use cases

Draft TypeScript types from an API response before wiring a client.
Inspect nested JSON shape more quickly than reading it line by line.
Create a rough typed starting point for config or mock data work.

A practical way to use it

Paste representative JSON samples instead of a simplified toy example so the draft types reflect reality.
Generate the result and review optional fields, arrays, nullability, and nested objects with care.
Move the draft into your project and refine names, unions, and business meaning before relying on it.

Practical notes

Generated types are strongest at shape discovery, not at capturing domain intent or long-term naming decisions.

If the API evolves quickly, keep the generated draft close to real sample payloads rather than treating it as permanent truth.

Common questions

Is JSONタイプのスケッチ best for quick tasks or heavy workflows?

It is strongest for fast, focused browser tasks. If you need collaboration, automation, or long-term records, export the result and continue inside your primary workflow.

Do I need an account before using it?

The public utility flow is designed around immediate use, so basic tasks should be possible without sign-up.

When should I switch to JSON形式 instead?

JSON形式 is a better fit for the adjacent step around this task. Finishing one focused step at a time is often more dependable than overloading a single page with too many actions.