Franklin Harding.

A package that provides a way to limit the amount of bytes read from an io.ReadCloser.

The io package only provides a io.LimitedReader, it doesn't provide a LimitedReadCloser, which can be very useful for working with http, files, etc, etc.

Say you want to create a middleware that limits any handler from reading over 10 bytes. You remember the awesome io.LimitReader function, but then realize Body is a ReadCloser, not just a Reader! With limit we can easily implement this middleware, because it has LimitedReadCloser, which has an underlying io.ReadCloser. For a more complete example see here.

func limitMiddleware(next http.Handler) http.Handler {
        return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
                r.Body = limit.ReadCloser(r.Body, 10)
                next.ServeHTTP(w, r)
        })
}