Spring / Spring cloud
What is an API Gateway?
An API gateway sits in front of an application programming interface (API) and acts as a single point of entry for a defined group of microservices. In addition to accommodating direct requests, gateways can invoke multiple back-end services and aggregate the results.
Other advantages of Using API gateway.
- load balancing,
- security policy enforcement, contract and service level agreement (SLA) management,
- cache management,
- dependency resolution.
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