如何转义 spdlog 消息？

Question

I'm using spdlog to log all messages. My log pattern is a JSON format. I'm escaping messages manually in all log calls. Is there any way exists to escape messages automatically in spdlog layer?

Sample of manually escaping:

spdlog::info(escape_message(data));

It should be automatically handled inside spdlog layer:

spdlog::info(data);

Answer 1

Tell spdlog to format a single string, rather than interpreting the string itself as the format string:

spdlog::info("{}", data);

Answer 2

I've found a way to solve it.

I should implement a custom formatter class and then in the format method, I escape the message by for example escape_message(msg.payload.data()) and then call spdlog::log(msg.source, msg.level, escape_message(msg.payload.data())) , spdlog::info or... inside this method.

Note : inside the format method I set a log pattern, because outside of the class, if I call set_formatter , then calling set_pattern , doesn't work well.