---
template: reference
foo: bar
---

# Simple Schema

```
https://example.com/schemas/simple
```

This is a _very_ simple example of a JSON schema. There is only one property.

| [Abstract](../abstract.md) | Extensible | [Status](../status.md) | Identifiable | Custom Properties | Additional Properties | Defined In                               |
| -------------------------- | ---------- | ---------------------- | ------------ | ----------------- | --------------------- | ---------------------------------------- |
| Can be instantiated        | No         | Experimental           | No           | Forbidden         | Permitted             | [simple.schema.json](simple.schema.json) |

# Simple Properties

| Property  | Type     | Required   | Nullable | Defined by                                 |
| --------- | -------- | ---------- | -------- | ------------------------------------------ |
| [id](#id) | `string` | Optional   | No       | Simple (this schema)                       |
| `*`       | any      | Additional | Yes      | this schema _allows_ additional properties |

## id

A unique identifier given to every addressable thing.

`id`

- is optional
- type: `string`
- defined in this schema

### id Type

`string`

- format: `uri` – Uniformous Resource Identifier (according to [RFC3986](http://tools.ietf.org/html/rfc3986))

**All** of the following _requirements_ need to be fulfilled.

#### Requirement 1

- []() – `#/definitions/id`