[Cookbook][Monolog] Register processors with tags

[xabbuh]

The cookbook article How to use Monolog to write Logs states that you can register processors on a handler level. According to symfony/monolog-bundle#77 this is outdated. Processors must be registered by tagging them as monolog.processor.

[stof]

well, the doc is not outdated, as it never says it should be done in the Monolog config. However, an example should be added to show how it can be registered for a single processor (and same for channels)

[flip111]

i think you mean "how it can be registered for a single handler". Since the how is "how to register the processor". Anyway, according to your answer in symfony/monolog-bundle#77 it should be something like - { name: monolog.processor, method: processRecord, handler: main }. I will post back when i have verified when this works for me.

[flip111]

This works, good job @stof !!!

[weaverryan]

👍 We should definitely add the code example you listed here to the note at the bottom of the page!

[ricoli]

Sorry for reviving this, but the docs led me to think that I could register processors for a handler from the monolog handler config, which is not the case, as the option is not valid (Unrecognized options "processors" under "monolog.handlers.custom"). I've opened a PR for this: #3979