Modernizing Legacy SOAP Applications with Amazon API Gateway and AWS Lambda

This article discusses how to modernize legacy SOAP applications using the Amazon API Gateway and AWS Lambda to create bidirectional proxy architectures that enable integration between SOAP and REST protocols without disrupting existing commercial operations. The solution uses Lambda functions to convert between JSON and XML formats, and the API Gateway to manage incoming requests and direct them appropriately. This approach provides scalability, authentication and authorization mechanisms, key management for partner access control, request and response validation, caching for improved performance, and monitoring capabilities.