API Gateway Overview

Popular API gateways and references:

• Tyk
• Apigee
• Zuul (Netflix)
• Ocelot (for .NET) — https://github.com/ThreeMammals/Ocelot
• Amazon API Gateway — https://docs.aws.amazon.com/apigateway/

Notes:

• Use gateways to centralize routing, auth, rate limiting, and observability.
• Choose based on ecosystem fit (e.g., Ocelot for .NET microservices), scale, and features.