Log Messages

Use log(level, fmt, ...), trace(fmt, ...), debug(fmt, ...), info(fmt, ...), warning(fmt, ...), error(fmt, ...), fatal(fmt, ...) to write logs to the default logger.

log(level::info, "price: {}", 100);

trace("price: {}", 100);
debug("price: {}", 100);
info("price: {}", 100);
warning("price: {}", 100);
error("price: {}", 100);
fatal("price: {}", 100);