# untyped
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**▶️ Check [online playground](https://untyped.unjs.io)**
## Install
```sh
# npm
npm i untyped
# yarn
yarn add untyped
# pnpm
pnpm add untyped
```
## Usage
First we have to define a reference object that describes types, defaults, and a `$resolve` method (normalizer).
```js
const defaultPlanet = {
name: "earth",
specs: {
gravity: {
$resolve: (val) => parseFloat(val),
$default: "9.8",
},
moons: {
$resolve: (val = ["moon"]) => [].concat(val),
$schema: {
title: "planet moons",
},
},
},
};
```
## API
### `resolveSchema`
```js
import { resolveSchema } from "untyped";
const schema = await resolveSchema(defaultPlanet);
```
Output:
```json
{
"properties": {
"name": {
"type": "string",
"default": "earth"
},
"specs": {
"properties": {
"gravity": {
"default": 9.8,
"type": "number"
},
"moons": {
"title": "planet moons",
"default": ["moon"],
"type": "array",
"items": [
{
"type": "string"
}
]
}
},
"type": "object"
}
},
"type": "object"
}
```
### `generateTypes`
```js
import { resolveSchema, generateTypes } from "untyped";
const types = generateTypes(await resolveSchema(defaultPlanet));
```
Output:
```ts
interface Untyped {
/** @default "earth" */
name: string;
specs: {
/** @default 9.8 */
gravity: number;
/**
* planet moons
* @default ["moon"]
*/
moons: string[];
};
}
```
### `generateMarkdown`
```js
import { resolveSchema, generateMarkdown } from "untyped";
const markdown = generateMarkdown(await resolveSchema(defaultPlanet));
```
Output:
```markdown
# `name`
- **Type**: `string`
- **Default**: `"earth"`
# `specs`
## `gravity`
- **Type**: `number`
- **Default**: `9.8`
## `moons`
- **Type**: `array`
- **Default**: `["moon"]`
```
## 💻 Development
- Clone this repository
- Enable [Corepack](https://github.com/nodejs/corepack) using `corepack enable` (use `npm i -g corepack` for Node.js < 16.10)
- Install dependencies using `pnpm install`
- Run interactive tests using `pnpm dev`
- Use `pnpm web` to start playground website
- Use `pnpm test` before push to ensure all tests and lint checks passing
## License
[MIT](./LICENSE)
Thanks to [@dominikschreiber](https://github.com/dominikschreiber) for donating package name.
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