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

# Join Types Schema

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

This is an example of a JSON schema with only a join type key. Here a 'oneOf'.

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

**One** of the following _conditions_ need to be fulfilled.

#### Condition 1

`object` with following properties:

| Property | Type   | Required |
| -------- | ------ | -------- |
| `foo`    | string | Optional |

#### foo

A simple string.

`foo`

- is optional
- type: `string`

##### foo Type

`string`

##### foo Example

```json
hello
```

#### Condition 2

`object` with following properties:

| Property | Type   | Required |
| -------- | ------ | -------- |
| `bar`    | string | Optional |

#### bar

A simple string.

`bar`

- is optional
- type: `string`

##### bar Type

`string`

##### bar Example

```json
world
```