Payment Gateway
A payment gateway is a technology platform that securely processes online transactions by transmitting payment data between merchants, customers, and financial institutions. It acts as an intermediary that authorizes credit card or digital payments for e-commerce websites, mobile apps, and in-store point-of-sale systems. Payment gateways handle encryption, fraud detection, and compliance with standards like PCI DSS to ensure secure and reliable payment processing.
Developers should learn about payment gateways when building e-commerce platforms, subscription services, or any application requiring secure online payments, as they simplify integration with multiple payment methods and reduce compliance burdens. They are essential for handling sensitive financial data, automating transaction workflows, and supporting global commerce with features like currency conversion and multi-region payment options. Using a payment gateway ensures regulatory compliance and minimizes the risk of fraud in financial transactions.