> For the complete documentation index, see [llms.txt](https://docs.ddosify.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.ddosify.com/ddosify/performance-testing/environment-variables.md).

# Environment Variables

{% embed url="<https://www.youtube.com/watch?v=VIakLfguzsc>" %}
Ddosify Environment Variables Feature
{% endembed %}

Similar to Postman, the Ddosify Platform offers an Environment Variables feature that allows you to store constants in variables for convenient use within your test scenarios.

#### Environment Variable Creation

1. Navigate to the Environments listing page within the Ddosify App, and find the 'New' button situated at the top-left corner of the page.

   <figure><img src="/files/DqfkPOKmAmorBnu6mrjK" alt=""><figcaption><p>Ddosify Environment Listing Page</p></figcaption></figure>
2. Assign a unique name to the new environment, which will be used to link the environment to a test. Next, create your name-value pairs. The values can be of various types, such as Number, String, or Array.

   <div><figure><img src="/files/PCBnWmWpXFUFNvd9ARbO" alt=""><figcaption></figcaption></figure> <figure><img src="/files/0sK7TndedFzLOxElBv0P" alt=""><figcaption></figcaption></figure></div>

#### Attach Environment into Tests

1. In the Ddosify App, go to the Test Suite and choose the Environment you previously created using the dropdown menu in the top-right corner of the Test Suite.

   <figure><img src="/files/TE2TG0L0LpIjzIXSpeSm" alt=""><figcaption></figcaption></figure>
2. Utilize the `{{environmentVariableName}}` format to insert test data into one of the following locations: URL, headers, query parameters, or authentication.

   <figure><img src="/files/3gCVfW1rPpjqB9PXY2YO" alt=""><figcaption></figcaption></figure>