zerolog
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log error type
Hi,
is it possible to log the error type in addition to the string? And if not would you be open for a PR that adds the functionality?
The background is that Datadog has some standard attributes that enable an enhanced UI view, for example grouping by error kind.
Currently we set:
zerolog.ErrorFieldName = "error.message"
It would be great to have an (opt-in) feature like:
zerolog.LogErrorType=true
zerolog.ErrorTypeFieldName = "error.kind" // populated with fmt.Sprintf("%T", err)
It's true that it's possible to add the "error.kind" attribute manually executing:
log.Err(err).Str("error.kind", "my-favourite-kind").Msg("log error")
Nevertheless, it would be also nice to rely on "MarshalZerologObject" to add custom attributes to the error log.
Basic example:
type MyError struct {
Message string
Kind string
}
func (e UsageError) Error() string {
return e.Message
}
func (me MyError) MarshalZerologObject(e *zerolog.Event) {
e.Str("error.kind", me.Kind)
}
Unfortunately, the MarshalZerologObject only adds keys within zerolog.ErrorFieldName and not at the "top" level. Example:
err: = MyError{ Message: "my-error-message", Kind: "my-favourite-kind" }
log.Err(err).Str(Msg("log error")
Current output:
{"log.level":"error","error.message":{"error.kind":"my-favourite-kind"}, "message":"log error"}
Wished output:
{"log.level":"error","error.message": "my-error-message", "error.kind": "my-favourite-kind", "message":"log error"}
As far as I understand, the only way to achieve what I want is adding manually the attribute when calling Log.Err(err). Is that right?
@roccoblues, did you find a way to do what you asked for?
