Instant search with Whoosh - Index and search a MySQL table using Whoosh outputing JSON results

Question

I want to index a MySQL table using Whoosh and create an instant search page, so I need the results of the Whoosh search to be in JSON. Is there a script or a project that implements this already? I've tried searching but I only find Haystack search for Django.

If not can I get some broad pointers how I should go about doing this.

Thanks.