Skip to main content
Referral Component Pn

​
What is Cello JS?

Cello JS is a browser-based JavaScript SDK that enables you to embed a fully-featured referral component directly into your web application. It provides a seamless way for your users to share referral links, track their performance, and receive rewards—all without leaving your product. The SDK works with any web framework that outputs HTML/JavaScript, including:
  • React, Next.js, and Gatsby
  • Vue and Nuxt
  • Angular
  • Vanilla JavaScript applications
  • Server-rendered applications (with client-side initialization)

​
Getting Started

Follow our quickstart guide to integrate Cello JS in under 15 minutes:

Quickstart Guide

Step-by-step instructions to add the Referral Component to your web app

​
Key Capabilities

With Cello JS, you can:

​
Core Functionality

  • Initialize the component - Boot with user authentication and configuration
  • Manage visibility - Show, hide, or programmatically open the component
  • Handle user sessions - Update user details and manage authentication tokens

​
Customization & Control

  • Change language - Switch languages dynamically without re-initialization
  • Custom launchers - Replace the default button with your own UI elements
  • Event callbacks - React to component events like open, close, and token expiration

​
Data & Communication

  • Retrieve referral links - Get active referral codes and URLs programmatically
  • Access campaign config - Fetch reward amounts and program details
  • Display announcements - Show targeted messages and updates to users

​
Advanced Features

  • Localization - Access and customize all UI text labels
  • Country restrictions - Automatically handle unsupported regions
  • Graceful shutdown - Clean component removal when needed

​
Mobile Applications

Looking to add referral functionality to your mobile app? Check out our native mobile SDKs:

iOS SDK

Swift/Objective-C SDK for iOS apps

Android SDK

Kotlin/Java SDK for Android apps

React Native

Cross-platform mobile SDK

​
Next Steps

1

Install the SDK

Follow the quickstart to add Cello JS to your application
2

Authenticate Users

Set up JWT authentication for secure user sessions
3

Explore the API

View all available methods in the usage documentation
⌘I