payment-gateway-with-googlePay
payment-gateway-with-googlePay is a software implementation designed to integrate Google Pay into merchant websites for processing online payments. The system facilitates secure transactions by utilizing the Google Pay API and PaymentsClient to manage payment data requests and tokenization. It supports both direct merchant integrations and third-party gateway configurations, allowing users to configure parameters such as merchant IDs, transaction details, and encryption keys. The tool handles various initialization scenarios and validates critical components including the secure context requirement for HTTPS environments, proper JSON formatting for payment requests, and the association of valid merchant profiles with specific domains. It includes comprehensive error handling to guide developers through common setup issues like missing merchant IDs, incorrect data types, domain registration failures, disabled accounts, and invalid gateway specifications. The software distinguishes between test and production e