Converting an existing API to Serverless is a matter of cost for the most part. If your REST API is already stateless, there should be no technical/design difficulties converting it to SERVERLESS API. Rememer that Serverless is not a type of API, it is more of a way to store your REST API (a good comparison is a docker stored REST API vs Serverless for example).
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Converting an existing API to Serverless is a matter of cost for the most part. If your REST API is already stateless, there should be no technical/design difficulties converting it to SERVERLESS API. Rememer that Serverless is not a type of API, it is more of a way to store your REST API (a good comparison is a docker stored REST API vs Serverless for example).