: Understood, but do ALL Solr service calls allow you to specify the : format? : : I thought the wt parameter was a select / search only feature, which
as of Solr 1.2, it's possible to configure Solr such that all responses to searches and updates can have their format specified with a "wt". someone may choose not to configure solr in this way -- for example: if they upgraded from Solr 1.1 they may not have mapped a handler to /update, either because they didn't know it was possible, or becuase they didn't wnat to deal with the stricter Content-Type rules that come from doing this. I think it's fair to say that new client code can expect/require people to have done this to use the client (since the only reason not to do this would be for older clients with poor content-type headers) at the only HTTP repsones Solr generates that can *not* by influenced by a reqponse writer are some of hte admin screens (the main page, the analysis.jsp, etc...) but those probably aren't all that important to a client API -Hoss
