Implementing

a custom writer:

class custom_writer : public base_writer {
public:
    common::VoidResult write(common::interfaces::log_level level,
                             const std::string& message,
                             const std::string& file,
                             int line,
                             const std::string& function,
                             const std::chrono::system_clock::time_point& timestamp) override {
        // Format the message
        std::string formatted = format_log_entry(level, message, file, line, function, timestamp);
 
        // Write to your custom destination
        if (!write_to_destination(formatted)) {
            return make_logger_void_result(logger_error_code::file_write_failed);
        }
 
        return common::ok(); // Success
    }
 
    common::VoidResult flush() override {
        // Flush any buffered data
        return flush_destination();
    }
 
    std::string get_name() const override {
        return "custom_writer";
    }
};