How to Convert JSON to TypeScript Types (Without Writing Them by Hand)

You just got access to a new API. The response comes back — it's a deeply nested JSON object with 40 fields, some optional, some arrays, some nested objects three levels deep. Your team lead says: "We need this typed properly." So you open a new .ts file and start typing interface ... That's an hour of your life you're not getting back — and the types might still be wrong. Manual JSON-to-TypeScript conversion is one of those tasks that feels like real work but is basically just copying data shap