I use the global module Log.Globaland functions infoand debug, but my application is growing and I need more flexibility. In particular, I would like to be able to enable / disable events from different components of the system. I am wondering what is the best practice in general (I mention Async, since this is the API that I use, but the question is more general).
The API seems to provide at least two ways to do this. There are optional parameters ?tags:(string * string) list. When used, it adds tags after the log message.
2017-08-23 17:35:38.090225+07:00 Info starting my program -- [foobar: foobar]
I could use this and then filter my log based on the events I want to see. How are tags usually used, are they usually literals, or are there other ways to use them?
I could also use more than one registrar. For example, a functor Make_global () : Global_intfcreates a singleton. I can create one registrar for each component. Is there any good reason to choose this approach? besides the fact that each log has a different output and the log level setting is independent.
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