# Flat JSON

{% hint style="warning" %}
**Deprecated Action**

This Action has been deprecated and is no longer supported. We recommend using the [JSON Transformation](https://app.gitbook.com/s/kxZeV4nlXcIAjMGZxzLI/the-workspace/pipelines/actions/transformation/json-transformation) Action as its replacement.
{% endhint %}

Learn more about this Action in [this article](https://app.gitbook.com/s/kxZeV4nlXcIAjMGZxzLI/the-workspace/pipelines/actions/transformation/flat-json).

<details>

<summary>v1.1.0</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">05/22/2025</mark>

#### Bug Fixes

* Strings aren't unescaped when transforming JSON.

</details>

<details>

<summary>v1.0.0</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">02/28/2025</mark>

* Added **Flatten level** parameter.
* Added **Separator** selector.
* Object arrays now extract each field separately.
* Added support for fields with default values.

</details>

<details>

<summary>v0.0.3</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">07/12/2024</mark>

* Added flatten level.
* Separator selector included.
* New implementation for arrays:

from:

```
{
  "name": "John Doe",
  "age": 30,
  "address": {
    "street": "123 Main St",
    "city": "Anytown",
    "country": "USA"
  },
  "contacts": [
    {
      "type": "email",
      "value": "john.doe@example.com"
    },
    {
      "type": "phone",
      "value": "555-1234"
    }
  ]
}
```

to:

```
{
  "name": "John Doe",
  "age": 30,
  "address_street": "123 Main St",
  "address_city": "Anytown",
  "address_country": "USA",
  "contacts[0]_type": "email",
  "contacts[0]_value": "john.doe@example.com",
  "contacts[1]_type": "phone",
  "contacts[1]_value": "555-1234"
}
```

</details>

<details>

<summary>v0.0.1</summary>

<mark style="background-color:purple;">**Released on**</mark> <mark style="background-color:purple;"></mark><mark style="background-color:purple;">03/25/2024</mark>

Initial version

</details>