DefaultAfter is the default func assigned to *Cloudwatch.After.

DefaultBefore is the default func assigned to *Cloudwatch.Before.

GetPutFunc returns the put func based on the context, this can be called to add more metrics after the middleware's handler is executed.

New retruns a new *Cloudwatch metrics middleware call its ServeHTTP to adapt it on the chain.

PutMetricContextKey is the context key which the metrics are stored.

Cloudwatch is the metrics handler.

AfterFunc is the func type called after calling the next func in the middleware chain.

BeforeFunc called before handler.