Using Apachesolr module as an API

Just want to share my experience with using the apachesolr module as an API. I use apachesolr module purely as interface between my own drupal modules and the Solr instance. Part of the reason to do so is that I use a different schema.xml, compared to the one provided with the apachesolr module.

For the single technical detail, read this issue.

Thanks a lot to the developers for creating the apachesolr module and making it nicely extensible!