---
title: json
---

JSON is built on the following data structures:

object:

``` json
{ "key1": "value1", "key2": "value2" }
```

array:

``` json
[ "first", "second", "third" ]
```
number:

``` json
42
3.1415926
```

string:

``` json
"This is a string"
```

boolean:

``` json
true
false
```

null:

``` json
null
```

python equivalents
------------------

| JSON    | Python    |
| ------- | --------- |
| string  | string    |
| number  | int/float |
| object  | dict      |
| array   | list      |
| boolean | bool      |
| null    | None      |

keywords
--------

| type    | compatible keywords                                                                                                     |
| ------- | ----------------------------------------------------------------------------------------------------------------------- |
| string  | type, minLength, maxLength, pattern                                                                                     |
| number  | type, minimum, maximum, exclusiveMinimum, exclusiveMaximum, multipleOf                                                  |
| integer | type, minimum, maximum, exclusiveMinimum, exclusiveMaximum, multipleOf                                                  |
| boolean | type                                                                                                                    |
| null    | type                                                                                                                    |
| array   | type, minItems, maxItems, items, uniqueItems                                                                            |
| object  | type, properties, additionalProperties, required, minProperties, maxProperties, dependencies, patternProperties, regexp |