etag

func Auto ¶

func Auto(config ...*Config) func(http.Handler) http.Handler

Simple, automatic, and conservative ETag middleware that handles (1) setting ETags on GET and HEAD requests and (2) returning 304 responses as appropriate based on a request's If-None-Match header. Defaults to weak ETags, but can be configered to set strong ETags. ETags are determined by buffering and hashing the response body.