Schema2TypeBox

https://github.com/xddq/schema2typebox
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Schema2TypeBox creates TypeBox code from JSON schemas, enabling automatic type inference after data...
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### Minimal JSON Schema Example

Source: https://github.com/xddq/schema2typebox/blob/main/issue_template.md

A sample JSON schema structure used to demonstrate issues with object properties, constraints, and enums.

```json
{
  "title": "Person",
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 20
    },
    "age": {
      "type": "number",
      "minimum": 18,
      "maximum": 90
    },
    "hobbies": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "string"
      }
    },
    "favoriteAnimal": {
      "enum": ["dog", "cat", "sloth"]
    }
  },
  "required": ["name", "age"]
}
```

--------------------------------

### Display CLI Help Menu

Source: https://github.com/xddq/schema2typebox/blob/main/README.md

Displays the help menu for the schema2typebox CLI, detailing available arguments and usage.

```text

    schema2typebox generates TypeBox code from JSON schemas. The generated
    output is formatted based on the prettier config inside your repo (or the
    default one, if you don't have one). Version: ${packageJson.version}

    Usage:

    schema2typebox [ARGUMENTS]

    Arguments:

    -h, --help
       Displays this menu.

    -i, --input
       Specifies the relative path to the file containing the JSON schema that
       will be used to generated typebox code. Defaults to "schema.json".

    -o, --output
       Specifies the relative path to generated file that will contain the
       typebox code. Defaults to "generated-typebox.ts".

    --output-stdout
       Does not generate an output file and prints the generated code to stdout
       instead. Has precedence over -o/--output.

```

--------------------------------

### Handle Multi-file Schemas with $ref

Source: https://github.com/xddq/schema2typebox/blob/main/README.md

Demonstrates how to resolve relative file references when splitting schemas across multiple files.

```json
// person.json
{
  "title": "Person",
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "maxLength": 100
    },
    "age": {
      "type": "number",
      "minimum": 18
    }
  },
  "required": ["name", "age"]
}

// status.json
{
  "title": "Status",
  "enum": ["unknown", "accepted", "denied"]
}

// schema.json
{
  "title": "Contract",
  "type": "object",
  "properties": {
    "person": {
      "$ref": "./person.json"
    },
    "status": {
      "$ref": "./status.json"
    }
  },
  "required": ["person"]
}
```

```typescript
export type Contract = Static<typeof Contract>;
export const Contract = Type.Object({
  person: Type.Object({
    name: Type.String({ maxLength: 100 }),
    age: Type.Number({ minimum: 18 }),
  }),
  status: Type.Optional(
      Type.Union([
        Type.Literal("unknown"),
        Type.Literal("accepted"),
        Type.Literal("denied"),
      ])
   ),
});
```

--------------------------------

### Convert JSON Schema to TypeBox

Source: https://github.com/xddq/schema2typebox/blob/main/README.md

Transforms a standard JSON schema object into a TypeBox Type.Object definition.

```typescript
{
  "title": "Person",
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 20
    },
    "age": {
      "type": "number",
      "minimum": 18,
      "maximum": 90
    },
    "hobbies": {
      "type": "array",
      "minItems": 1,
      "items": {
        "type": "string"
      }
    },
    "favoriteAnimal": {
      "enum": ["dog", "cat", "sloth"]
    }
  },
  "required": ["name", "age"]
}

export type Person = Static<typeof Person>;
export const Person = Type.Object({
  name: Type.String({ minLength: 20 }),
  age: Type.Number({ minimum: 18, maximum: 90 }),
  hobbies: Type.Optional(Type.Array(Type.String(), { minItems: 1 })),
  favoriteAnimal: Type.Optional(
    Type.Union([
      Type.Literal("dog"),
      Type.Literal("cat"),
      Type.Literal("sloth"),
    ])
  ),
});
```
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