full logging is very verbose.

Feign logging FULL is very verbose, up to 16 log messages per REST call (depending on headers). Is there any chance of an option to produce just two log messages in JSON format? Example for reply:

{
    "status":           200,
    "response_headers": [<list of HTTP response headers>],
    "payload":          <REST payload>
}

Everything in a single log message. This would provide the same really useful information but in a format that would greatly reduce the load on log aggregators such as ELK.

Start by tracing Feign's FULL logging entry point and any existing logging tests; the issue does not name specific files. Define how the option would consolidate a REST call into JSON log messages, and consider the request and response information that must remain available. Done means the new option reduces message volume while retaining the useful information described in the example.