Quick Start: Dynamic QR Code

• Quick Start: Dynamic QR Code
  • Overview
  • Requirements
  • Installation
  • Usage
  • Troubleshooting
    • Callback testing
    • Making your server reachable
    • Callback setup
  • Author(s)
  • Acknowledgement

Overview

This repository includes examples of integrations for online payments with ZaloPay Dynamic QR Code. Within this demo app, you'll find a simplified version of an e-commerce website, complete with commented code to highlight key features and concepts of ZaloPay's API.

Requirements

Node.js 16+

Installation

1. Clone this repo:

git clone 

2. Navigate to the root directory and install dependencies:

npm install

Usage

1. Update next.config.js file with your Merchant information:

ZLP_MERCHANT_APP_ID="your_app_id_here"
ZLP_MERCHANT_KEY1="your_key1_here"
ZLP_MERCHANT_KEY2="your_key2_here"
ZLP_MERCHANT_ENDPOINT="zalopay_merchant_endpoint_here"

Or you can use this testing merchant account.

2. Build & Start the server:

npm run dev

3. Visit http://localhost:3000/ to select an integration type.

To try out payment you need install and register ZaloPay Sanbox , see Trải nghiệm với ZaloPay.

Note

This example doesn't include the callback when run at localhost, see how to integration callback in next section

Troubleshooting

Callback testing

Callback (a.k.a Webhook) is a mechanism to deliver Instant Payment Notification asynchronously for Merchant Server receives payment's results from ZaloPay Server, only when ZaloPay has received money from user successfully, and it is important to test them during the setup of your integration. You can find more information about callbacks in here.

This sample application provides a simple callbacks integration exposed at /api/callback. For it to work, you need to:

1. Provide a way for the ZaloPay Server to reach your running application
2. Add a callback url to ZaloPay Server notify to your application.

Making your server reachable

Your endpoint that will consume the incoming callback must be publicly accessible.

There are typically many options, in this example we can expose your localhost with tunneling software (i.e. ngrok)

If you use a tunneling service like ngrok the webhook URL will be the generated URL ( ie https://c991-80-113-16-28.ngrok.io)

  $ ngrok http 3000
  
  Session Status                online                                                                                           
  Account                       ############                                                                      
  Version                       #########                                                                                          
  Region                        United States (us)                                                                                 
  Forwarding                    https://c991-80-113-16-28.ngrok.io -> http://localhost:3000           

Note: when restarting ngrok a new URL is generated, make sure to update the Webhook URL in the Merchant Portal

Callback setup

There are 2 way to set up a callback URL:

• Update ZLP_MERCHANT_CALLBACK_URL config in next.config.js file by ngrok url, example: https://c991-80-113-16-28.ngrok.io/api/callback. This value will send as params in order creation API. See more about Order Information.
• Set up in Sanbox Merchant Portal.

If the callback setup is worked, the following message is shown:

💰  Payment Callback received!
✅  Update order's status = success where app_trans_id = 230224_353137

Author(s)

• Phuc Vo

Acknowledgement

This quick start is built upon AlterClass.io.