Node.es is a project mainly written in ..., it's free.
Node gadgets for Elastic Search
h1. Node gadgets for Elastic Search
h2. Proxy server
Basically, the "proxy":http://github.com/lukas-vlcek/node.es/tree/master/proxy/ server can do the following for you:
You can find simple example in "proxy-example.js":http://github.com/lukas-vlcek/node.es/blob/master/proxy/proxy-example.js More detailed documenation can be found in source code of "elasticsearch-proxy.js":http://github.com/lukas-vlcek/node.es/blob/master/proxy/elasticsearch-proxy.js