Lura vs Spring Cloud Gateway

Lura is a free, open-source Go library for building stateless API gateways and proxies in cloud-native or on-premises deployments. It combines multiple backend sources behind endpoints, allowing a client to request data through one endpoint and receive only the needed fields. Its proxy can group, wrap, transform, and reduce responses, with an EntityFormatter for response manipulation. The framework is organized around configuration, router, and proxy packages, with helpers for encoding, logging, and service discovery. Documented middleware covers balancing, concurrent requests, request and response logging, response merging, and HTTP URL patterns. Lura supports HTTP(S), while adapters for Thrift, gRPC, AMQP, and NATS can be added. The router layer can use other routers, frameworks, or middleware, and generic libraries support plugins such as OAuth layers. It is compiled from source and requires Go. Pricing is free.

Spring Cloud Gateway has no write-up on Specifiction yet; its figures are above.