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json-schema-to-ts

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json-schema-to-ts

Infer typescript types from your JSON schemas!


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1.7M
increased by27.93%
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What is json-schema-to-ts?

The json-schema-to-ts npm package is a utility that converts JSON Schema definitions into TypeScript types. This allows developers to ensure type safety and consistency between their JSON data and TypeScript code.

What are json-schema-to-ts's main functionalities?

Convert JSON Schema to TypeScript Types

This feature allows you to convert a JSON Schema into a TypeScript type. The `FromSchema` utility type takes a JSON Schema object and infers the corresponding TypeScript type.

import { FromSchema } from 'json-schema-to-ts';

const userSchema = {
  type: 'object',
  properties: {
    id: { type: 'string' },
    name: { type: 'string' },
    age: { type: 'number' }
  },
  required: ['id', 'name']
} as const;

type User = FromSchema<typeof userSchema>;

const user: User = {
  id: '123',
  name: 'John Doe',
  age: 30
};

Type Validation

This feature ensures that the TypeScript types derived from JSON Schema are validated at compile time, reducing runtime errors and improving code reliability.

import { FromSchema } from 'json-schema-to-ts';

const productSchema = {
  type: 'object',
  properties: {
    productId: { type: 'string' },
    price: { type: 'number' }
  },
  required: ['productId', 'price']
} as const;

type Product = FromSchema<typeof productSchema>;

const product: Product = {
  productId: 'abc123',
  price: 19.99
};

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Package last updated on 29 Aug 2024

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