Function RemoteIPHandler

hlog/hlog.go:108–121

RemoteIPHandler is similar to RemoteAddrHandler, but logs only an IP, not a port.

(fieldKey string)

// RemoteIPHandler is similar to RemoteAddrHandler, but logs only
// an IP, not a port.
func RemoteIPHandler(fieldKey string) func(next http.Handler) http.Handler {
	return func(next http.Handler) http.Handler {
		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
			ip := getHost(r.RemoteAddr)
			if ip != "" {
				log := zerolog.Ctx(r.Context())
				log.UpdateContext(func(c zerolog.Context) zerolog.Context {
					return c.Str(fieldKey, ip)
				})
			}
			next.ServeHTTP(w, r)
		})
	}
}

// UserAgentHandler adds the request's user-agent as a field to the context's logger
// using fieldKey as field key.