Web Payment Gateway
A web payment gateway is a service that processes online payments by securely transmitting transaction data between a merchant's website and the payment processor or bank. It handles encryption, fraud detection, and authorization to facilitate e-commerce transactions. Developers integrate payment gateways via APIs or SDKs to enable credit card, digital wallet, and other payment methods on websites or apps.
Developers should learn web payment gateways when building e-commerce platforms, subscription services, or any application requiring secure online transactions, as they ensure PCI DSS compliance and reduce fraud risk. They are essential for handling sensitive financial data, supporting global payments, and automating billing processes in industries like retail, SaaS, and fintech.