Accept structs as structured logs in Sentry.LoggerHandler

[mrdotb]

👋

While testing my custom logger handler, which is based on the Sentry Elixir handler, I encountered an issue where passing a struct to Logger.error causes the handler to detach. The error handler only supports keywords and maps.

The problem arose when using the Tesla library, which passes a Tesla.Env struct to Logger.error. Interestingly, Logger.info does support passing structs, and the struct is displayed as a keyword list or map with the __struct__ field

iex(3)> Logger.error(%Foo{})
:ok
23:36:43.117 [error] [__struct__: Foo, bar: nil]

I added a test that reproduce the issue and a fix proposition.

[whatyouhide]

Great catch, thanks @mrdotb 💟