Type safety is critical for modern full-stack web applications. Converting raw JSON payloads into TypeScript interfaces eliminates runtime undefined errors.
1. Inferring Types from Dynamic Data
The generator inspects primitive values, nullability, nested dictionaries, and homogeneous arrays:
export interface UserProfile {
id: string;
name: string;
email: string;
age: number;
tags: string[];
settings: {
theme: 'dark' | 'light';
notifications: boolean;
};
}2. Synthesizing Runtime Zod Schemas
import { z } from 'zod';
export const UserProfileSchema = z.object({
id: z.string(),
name: z.string(),
email: z.string().email(),
age: z.number().int().positive(),
tags: z.array(z.string()),
settings: z.object({
theme: z.enum(['dark', 'light']),
notifications: z.boolean()
})
});
export type UserProfile = z.infer<typeof UserProfileSchema>;
Put this into practice with the JSON to TypeScript
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