What Is an API Gateway?

An API Gateway is a tool that acts as an intermediary for requests from clients seeking resources from servers or microservices. It manages, routes, aggregates, and secures the API requests.

Like previous patterns we have explored, this is often described as a “microservices context” pattern, but this is not necessarily the case. It could be worth using in many “not microservices” cases and sometimes shouldn’t be used in microservices.

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