@belongnet/sdk

JavaScript SDK for integrating with Belong.net widget for seamless payment implementation on your website or application frontend.

• 👀 Demo online constructor

Installation

NPM:

You can install using npm, yarn, or pnpm:

pnpm add @belongnet/sdk

# or
npm install @belongnet/sdk

# or
yarn add @belongnet/sdk

and then import it in your project:

import { createPaymentFrame } from '@belongnet/sdk'

CDN:

To load scripts as modules, it's recommended to use esm.sh. Add this to the bottom of your HTML file:

<script type="module">
  import { createPaymentFrame } from 'https://esm.sh/@belongnet/[email protected]'
</script>

Note: Pin the version number to avoid breaking changes in production.

You can also try jsDelivr or unpkg, but they haven't been tested.

Usage:

The SDK supports several payment targets for different use cases:

Event Ticket Payment

Used for purchasing tickets to events. Requires an eventId to identify the specific event.

import { PaymentTarget } from '@belongnet/sdk'

createPaymentFrame({
  el: document.getElementById('belong-payment-frame'),
  params: {
    target: PaymentTarget.EventTicket,
    eventId: '65f1c7a33e51d8e4c2a9b4d2',
  },
})

Hub Minting Payment

Used for minting operations within a hub. Requires a hubId to identify the specific hub.

createPaymentFrame({
  el: document.getElementById('belong-payment-frame'),
  params: {
    target: PaymentTarget.HubMinting,
    hubId: '65f1c7b12f90ae7d31c8e5f1',
  },
})

Checkout Payment

Used for general checkout operations. Requires a checkoutId to identify the specific checkout session.

createPaymentFrame({
  el: document.getElementById('belong-payment-frame'),
  params: {
    target: PaymentTarget.Checkout,
    checkoutId: '65f1c7c8d4a5b3e9f8c1d2e3',
  },
})

Advanced Usage

Event listeners:

To determine the outcome of a payment (success or failure and etc), you can set up event listeners that listen to events from the payment frame. We provide isPaymentEvent utility to help identify payment-related events.

import { isPaymentEvent } from '@belongnet/sdk'

function handlePayment(e: MessageEvent) {
  if (isPaymentEvent(e)) {
    switch (e.data.type) {
      case 'payment-success':
        // logic for successful payment
        console.log('payment-success', e.data.payload.link)
        break
      case 'payment-error':
        // logic for payment error
        console.log('payment-error', e.data.payload)
        break
    }
  }
}

// Add the event listener to listen for messages from the payment frame:
window.addEventListener('message', handlePayment)

// Remove the event listener when it is no longer needed to avoid potential memory leaks
function onUnmount() {
  window.removeEventListener('message', handlePayment)
}

This method makes sure your app reacts well to payment events, giving users a smooth experience even if payments fail. But it's only for showing visual changes on the frontend. For safer payments, you need server-side processing with the API too.

API

createPaymentFrame(options)

Creates a payment frame for embedding payment forms.

Example:

import { PaymentTarget } from '@belongnet/sdk'

const { frame, url } = createPaymentFrame({
  el: document.getElementById('payment-frame'),
  origin: 'https://example.com',
  params: {
    target: PaymentTarget.EventTicket,
    eventId: '65f1c7a33e51d8e4c2a9b4d2',
  },
})

isPaymentEvent(event)

Checks if the provided event is a Belong payment event.

PaymentEvent

Loaded

• Type: string
• Default: "loaded"

PaymentCanceled

• Type: string
• Default: "payment-canceled"

PaymentError

• Type: string
• Default: "payment-error"

PaymentSuccess

• Type: string
• Default: "payment-success"

PaymentTarget

Checkout

• Type: string
• Default: "checkout"

EventTicket

• Type: string
• Default: "event-ticket"

HubMinting

• Type: string
• Default: "hub-minting"

validateEvent(data)

Validates the provided payment event data.

validateParams(params)

Validates the provided parameters.

Target Parameters Reference

Each target requires specific parameters. Here's a detailed breakdown:

Event Ticket Parameters

Parameter	Type	Description
target	PaymentTarget	Must be PaymentTarget.EventTicket
eventId	string	Unique identifier of the event (24 characters)
coupon	string	Optional coupon code for discounts
email	string	Email user

Hub Minting Parameters

Parameter	Type	Description
target	PaymentTarget	Must be PaymentTarget.HubMinting
hubId	string	Unique identifier of the hub (24 characters)
email	string	Email user

Checkout Parameters

Parameter	Type	Description
target	PaymentTarget	Must be PaymentTarget.Checkout
checkoutId	string	Unique identifier of the checkout (24 characters)
email	string	Email user

License

This project is licensed under the terms of the MIT license.

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