@zerohash-sdk/crypto-buy-js

A JavaScript SDK that enables frontend applications to seamlessly integrate with the Connect Crypto Buy product.

Connect Crypto Buy provides a secure, customizable flow for purchasing crypto assets directly within your application.

Installation

Via NPM (recommended)

npm install @zerohash-sdk/crypto-buy-js

import { CryptoBuy } from '@zerohash-sdk/crypto-buy-js';

Via CDN

<script
  type="module"
  src="https://sdk.connect.xyz/crypto-buy-web/index.js"
></script>

Or import directly in your JavaScript code:

import { CryptoBuy } from 'https://sdk.connect.xyz/crypto-buy-web/index.js';

Getting Started

1. Import the CryptoBuy module

import { CryptoBuy } from '@zerohash-sdk/crypto-buy-js';

2. Initialize and render the widget

const cryptoBuy = new CryptoBuy({
  jwt: 'your-jwt-token', // Obtain this from your backend
  env: 'prod', // or 'cert' for testing
  theme: 'auto',
  onCompleted: ({ amountBought, assetSymbol }) => {
    console.log('Buy completed:', amountBought, assetSymbol);
  },
  onError: ({ errorCode, reason }) => {
    console.error('Error:', errorCode, 'Reason:', reason);
  },
  onClose: () => console.log('Widget closed'),
  onEvent: ({ type, data }) => console.log('Event:', type, data),
  onLoaded: () => console.log('Widget loaded and ready'),
});

await cryptoBuy.render(document.getElementById('crypto-buy-container'));

// Update configuration dynamically
cryptoBuy.updateConfig({ jwt: 'new-jwt-token' });

// Clean up when done
cryptoBuy.destroy();

2.1 Using TypeScript (optional)

import { CryptoBuy, CryptoBuyConfig } from '@zerohash-sdk/crypto-buy-js';

const config: CryptoBuyConfig = {
  jwt: 'your-jwt-token',
  env: 'cert',
  theme: 'dark',
  onCompleted: ({ amountBought, assetSymbol }) => {
    console.log(`Bought ${amountBought} ${assetSymbol}`);
  },
};

const cryptoBuy = new CryptoBuy(config);
await cryptoBuy.render(document.getElementById('crypto-buy-container')!);

API Reference

Configuration

| Prop | Type | Required | Default | Description | | ------------- | ----------------------------------------- | -------- | -------- | ------------------------------------------------- | | jwt | string | Yes | - | JWT token for authentication with Connect | | env | "prod" \| "cert" \| "dev" \| "local" | No | "prod" | Target environment | | theme | "auto" \| "light" \| "dark" | No | "auto" | Theme mode for the interface | | onCompleted | ({ amountBought, assetSymbol }) => void | No | - | Callback when the buy flow completes successfully | | onError | ({ errorCode, reason }) => void | No | - | Callback for error events | | onClose | () => void | No | - | Callback when the widget is closed | | onEvent | ({ type, data }) => void | No | - | Callback for general events | | onLoaded | () => void | No | - | Callback when the widget is loaded and ready |

Methods

render(container: HTMLElement): Promise<void>

updateConfig(config: Partial<CryptoBuyConfig>): void

destroy(): void

isRendered(): boolean

getConfig(): CryptoBuyConfig

Browser Support

• Chrome/Edge 90+
• Firefox 88+
• Safari 14+
• All modern browsers with Web Components support

More Information & Support

For comprehensive documentation or support about Connect, visit our Documentation Page.