Span Collector - Json generation

[francky06l]

Hello All,

I am quite new to open telemetry.
I did instrument a quite large C++ application that mainly create a 'root' span (per record processed) and nested children span, and 'pushed' these to open telemetry collector (otelcol).
So far, in the C++ App I used the Batch processor (it could be the simple one), in otelcol I just use the 'debug' exporter/batchprocessor.
I wounder if some processor/exporter already exits to create a Json from a root Span (meaning no parent) and all the nested children ?
Any hint appreciated.
Thanks
F.