Use Logger.add_backend/1

[josevalim]

Configuring the backend on config/config.exs may be too early
and cause issues if trying to loading logger config before Sentry
is compiled.

Or it can be an issue in umbrella projects when only some of them
depend on Sentry.

[josevalim]

Note the previous snippet also wouldn't work for releases. :)

[thbar]

it can be an issue in umbrella projects when only some of them
depend on Sentry.

Thanks @josevalim - it is one of the pain points I've had in the umbrella app I'm managing, this will help greatly.

[mitchellhenke]

@josevalim Thank you so much!! 💖

[morgz]

Could you also update your getting started to refer to this way of implementing the logger?

[josevalim]

@morgz if we mention the "old way" on the website, then please send a PR, but the getting started per se does not cover additional logger backends. This change is mentioned in the Logger docs though.

[morgz]

@morgz if we mention the "old way" on the website, then please send a PR, but the getting started per se does not cover additional logger backends. This change is mentioned in the Logger docs though.

Here you go - Can I suggest you add an "Edit on Github" button to your documentation. Before commenting here I looked for that and without it, I had to go hunting through your repos. See example on the Apollo Docs

[josevalim]

Oh, I am so sorry, I thought you were referring to Elixir's getting started guide. My bad, thanks for the PR though!

[mitchellhenke]

@morgz thanks for updating the docs!