---
title: "Get Functions Instance"
url: https://docs.catalyst.zoho.com/en/sdk/nodejs/v2/serverless/functions/get-component-instance/
description: "This page describes the method to execute functions in your NodeJS application with sample code snippets."
last_updated: 2026-09-08T11:07:33Z
service: Serverless
type: general
related_links:
  - name: "Functions"
    url: /en/serverless/help/functions/introduction
---

# Functions

> **Note:** This SDK is currently in deprecation. Migrate to [JavaScript SDK](https://docs.catalyst.zoho.com/en/sdk/javascript/v1/serverless/functions/get-function-instance/) now.

The function group in Catalyst is created and defined through either Catalyst's online editor or the Command Line
Interface (CLI). The functions in a function group can be executed in a testing environment as well as in the production
environment.

#### Get a component instance

The function reference can be created using the following method which does not fire a server-side call.

```javascript
//Get a function instance 
let functions = app.functions();
```