Node-green-light was an experiment to use fibers in a safer way. For a better maintained fork please use asyncblock instead. Node-green-light has thus been discontinued in favor of asyncblock and to have more time for my other projects. This wrapper to node-fibers aims to ease calling existing asynchronous code from a synchronous context. A greenlight fiber gets two functions, red and green. The first is for pausing the other for resumes. Call them anyway you like red/green, pause/resume, stop/go etc..