Function ErrorAndLog

internal/aghhttp/aghhttp.go:31–53

ErrorAndLog writes a formatted HTTP error response and logs it at [slog.LevelError] level. l, r, and w must not be nil.

(
	ctx context.Context,
	l *slog.Logger,
	r *http.Request,
	w http.ResponseWriter,
	code int,
	format string,
	args ...any,
)

// ErrorAndLog writes a formatted HTTP error response and logs it at
// [slog.LevelError] level.  l, r, and w must not be nil.
func ErrorAndLog(
	ctx context.Context,
	l *slog.Logger,
	r *http.Request,
	w http.ResponseWriter,
	code int,
	format string,
	args ...any,
) {
	text := fmt.Sprintf(format, args...)
	l.WarnContext(
		ctx,
		"http error",
		"host", r.Host,
		"method", r.Method,
		"raddr", r.RemoteAddr,
		"request_uri", r.RequestURI,
		"status", code,
		slogutil.KeyError, text,
	)

	http.Error(w, text, code)
}

// UserAgent returns the ID of the service as a User-Agent string.  It can also
// be used as the value of the Server HTTP header.