Sonatype Nexus 3 - Logging URLs proxy requests

Question

I'm trying to debug an issue of a proxy repository giving me a 404 for an artifact that I know exists in the repository being proxied (this is an NPM package in my case).

I would like to enable logging so that I can see the URL that Nexus is attempting to reach in responding to that proxy request but cannot seem to find any of the default loggers that provide this output.

What logger do I need to set and at what level to see this?

Answer 1

If you switch org.apache.http.wire to DEBUG, you will get a plethora of information on what calls are being made, almost too much information. This will give you information such as the following:

This was generated by switching that value and then doing a install.packages("xts", repos="http://localhost:8081/repository/r-proxy") from R Studio, against an R Proxy repo of CRAN.