AWS Step Functions
AWS Step Functions for DVA-C02. Standard vs Express workflows, state types, error handling, Wait for Callback, Map state for parallel processing, and integration with Lambda, SQS, DynamoDB, and API Gateway.
AWS Step Functions for DVA-C02. Standard vs Express workflows, state types, error handling, Wait for Callback, Map state for parallel processing, and integration with Lambda, SQS, DynamoDB, and API Gateway.
Payment Hub vs Payment Gateway vs Payment Factory — architecture patterns, orchestration, channel abstraction, and Java/Spring engineering design for centralised payment processing.