TypeScript Types for Config and Settings Objects
Generate TypeScript interfaces from JSON configuration files to add type safety to your application settings.
export interface User {
id: number;
name: string;
email: string;
isActive: boolean;
score: number;
tags: string[];
address?: null;
}
export interface Root {
user: User;
createdAt: string;
version: number;
}Config tips
Paste your app config JSON (e.g., from appsettings.json or config.json) to generate a strongly typed Config interface for TypeScript projects.
Using interfaces for config objects prevents runtime errors from typos in property names — TypeScript catches them at compile time.
For environment configs with optional overrides, manually change generated field types to "field?: type" after generating to reflect optional values.
Switch to "type alias" mode for simpler config shapes — type aliases are often preferred for plain data objects without extension or declaration merging.
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