在快速启动时缓存资源

I am wondering if someone could help me point out how to cache a resource in express/node on startup of the web server. The myCol.find is very expensive, so I would like to just run it once on startup, and cache the result for all subsequent requests. Is there a startup step I can tie into? Can this be done synchronously before the server starts accepting requests?I am wondering if someone could help me point o