Enhance ExternalHttpException to provide information from content.

[cnrudd]

ExceptionRenderer prints out t.message and t.cause properties but I have come across a few endpoints that put the meat of their error message in a property called t.content.

Debugging chores would benefit greatly and take a lot less time if t.content were added to all of ExceptionRenderer's output.

[lbwexler]

Colin -- is it fair to say you are talking about this exception that we generate here in JsonClient? That you should think it should be serialized with the content, if appropriate? To be clear this is specific to REST and HTTP exceptions.

hoist-core/src/main/groovy/io/xh/hoist/http/JSONClient.groovy

Line 139 in 4316912

throw new ExternalHttpException("Failure calling ${method.uri} : $statusText", cause, statusCode)

Makes sense, just want to clarify that

[lbwexler]

So colin and I looked at this -- this is just a particular property that is surfaced in a client-specific HttpException. So the ticket is a bit more tricky that the title implies.

But the general goal is good. Perhaps JSONClient should extract useful information from the "content" of the return into the frameworks ExternalHttpException. This could perhaps be partially elevated into the message, or at least made available
in the JSONFormat.