# Scripts (ScriptService)

Lightweight script services rely on moving logic that does not require a connection to services from backend code to the application. Scripts can be written in the repository and then used in the application.\
The script code should be written in **plain JavaScript (ES6 or older)**. The code must be compatible with the version of the JavaScript engine **provided by Rhino** (<http://mozilla.github.io/rhino/compat/engines.html>)**.**

Additionally **have been disabled** elements such as "eval".

{% hint style="danger" %} <mark style="color:$info;">Timeout</mark>

<mark style="color:$info;">**WARNING!**</mark> <mark style="color:$info;">The script execution time is limited to</mark> <mark style="color:$info;">**1s**</mark><mark style="color:$info;">,</mark> <mark style="color:$info;">to eliminate cases of using an infinite loop/unfinished recursion. After exceeding one second, an exception will be thrown.</mark>
{% endhint %}

{% hint style="info" %}
After being fetched, service scripts are cached. The lifetime is controlled by the configuration key **repository\_script\_service\_cache\_ttl** and **settings\["REPOSITORY\_SCRIPT\_SERVICE\_CACHE\_TTL"]**
{% endhint %}


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