Generate type from schema

When working with TypeScript, one common challenge is generating types from a schema. This can be especially useful when dealing with complex data structures or when integrating with external APIs that provide a schema definition.

Fortunately, there are several solutions available to generate types from a schema in TypeScript. Let’s explore a few of them:

1. Using the TypeScript compiler

The TypeScript compiler itself provides a way to generate types from JSON schemas using the tsc command-line tool. To do this, you’ll need to install the json-schema-to-typescript package:

npm install -g json-schema-to-typescript

Once installed, you can use the following command to generate types from a schema:

json-schema-to-typescript --cwd path/to/schema.json --output path/to/types.ts

This will generate a TypeScript file (types.ts) containing the generated types based on the provided schema (schema.json).

2. Using third-party libraries

There are also several third-party libraries available that can help generate types from a schema in TypeScript. One popular library is ts-json-schema-generator. To use it, you’ll need to install the package:

npm install -g ts-json-schema-generator

Once installed, you can use the following command to generate types from a schema:

ts-json-schema-generator --path path/to/schema.json --out path/to/types.ts

This will generate a TypeScript file (types.ts) containing the generated types based on the provided schema (schema.json).

3. Using online tools

If you prefer a more visual approach, there are also online tools available that can generate types from a schema. One such tool is JSONSchemaToTS. Simply paste your schema into the tool, and it will generate the corresponding TypeScript types for you.

Here’s an example of how the generated types may look like:

interface User {
  id: number;
  name: string;
  email: string;
  address: {
    street: string;
    city: string;
    zipCode: string;
  };
}

By generating types from a schema, you can ensure type safety and improve the development process when working with complex data structures in TypeScript.

Remember to always keep your schema up-to-date with your data model to ensure accurate type generation.

That’s it! Now you know how to generate types from a schema in TypeScript using different approaches. Choose the one that best fits your needs and start enjoying the benefits of type safety in your projects.

Generate type from schema