Question about caching about serverless-api-gateway-caching

[DianaIonita]

Hi @th3fl4w3d,

Thanks for asking. There isn't a way that I know of to tell API Gateway to only cache on certain cache key parameters.
However, you can send a Cache-Control header to instruct API Gateway to clear the cache for a specific entry:

For example,

GET api.domain.com/v2/users
with header:
Cache-Control: max-age=0

will clear the cache for that specific cache key (in this case, when the cache key is undefined), and return a newly generated response. It would not affect other cache entries.

This plugin also offers a way to configure per-key cache invalidation authorization, which you may need to tweak based on your requirements:

plugins:
  - serverless-api-gateway-caching

custom:
  apiGatewayCaching:
    enabled: true
    perKeyInvalidation:
      requireAuthorization: true # default is true
      handleUnauthorizedRequests: Ignore # default is "IgnoreWithWarning".

Hope this helps.