If all you want to do is make existing async methods synchronous, it's easier to modify the function prototoype like this: https://github.com/olegp/mongo-sync/b

If all you want to do is make existing async methods synchronous, it's easier to modify the function prototoype like this: https://github.com/olegp/mongo-sync/blob/master/lib/mongo-sync.js#L12 https://github.com/olegp/mongo-sync/blob/master/lib/mongo-sy... or just use Futures that come with fibers. However, in practice you want a higher level of abstraction, since multiple async calls typically end up mapping to one sync call. This applies to streams in particular where you need to wait until they become readable. I've written Common Node (https://github.com/olegp/common-node https://github.com/olegp/common-node) to do just this and made it CommonJS and RingoJS compatible, which means the code written for Common Node runs on both V8 and the JVM. We've been using it in production at https://starthq.com https://starthq.com for a while with great success. Due to some optimizations we put in place, Common Node actually performs faster than Node in some benchmarks.