Api Gateway topologies : what are the possibilities ?

Question

Hi,

I wonder if there are multiple possible API Gateway topologies, i.e. ONE ccentral API Gateway for all our projects, one API Gateway per project or other ?

From what I read, I seem to understand there is a single API Gateway per AWS Account, am I right ?

Thanks for your answers.

Accepted Answer

API Gateway is the name of the service. As such there is only one. You can create multiple APIs in the Gateway.

My recommendation would be to create an API per component. This way you reduce the dependencies between teams.

Once you have multiple APIs, you can place them all behind a single custom domain name so to the clients it seems like a single API.

Answer

The design topology is determined by your account structure and resource allocation with the account.Simple answer is, you can have one single API gateway and access it from other AWs accounts. Please refer to the below documentations.

https://aws.amazon.com/premiumsupport/knowledge-center/access-api-gateway-account/
https://aws.amazon.com/blogs/compute/building-private-cross-account-apis-using-amazon-api-gateway-and-aws-privatelink/
https://docs.aws.amazon.com/prescriptive-guidance/latest/modernization-integrating-microservices/api-gateway-pattern.html

Api Gateway topologies : what are the possibilities ?

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