Formatting Incorrect in apm about tracing-elastic-apm

[krojew]

It is possible to attach metadata to APM, but at the moment, there's no way to pass that metadata to the layer through tracing.

[kmyers608]

What would need to be change to support sending metadata? I would be willing to open another PR if you could point me in the right direction.

[krojew]

There are several ways to do it. The proper way would be to add arbitrary structured data in tracing for https://docs.rs/tracing/0.1.26/tracing/field/trait.Visit.html. A workaround would be to pass everything as strings via some predefined attribute names. This is a hack and doesn't scale well. In your case, you would need to somehow pass https://github.com/krojew/tracing-elastic-apm/blob/master/src/model.rs#L205 into tracing.

[kmyers608]

Thank you I will look into that when I get some time and close this since the issue is outside the scope of this crate