Getting Started
Before you integrate VNPAY into your application, you should have done the registration and having the encryption keys. The 2 encryption key is for production environment. Please ensure your callback URL is valid and updated in VNPAY portal.
Make REST API call
In REST API calls, include the URL to the API service for the environment:
Demo: https://demo.vnpay333.com
Also, encrypt your data parameter with the encryption key we provided to prove your identity and access protected resources.