const nginxAutoConfig = require("../index"); const path = require("path"); const SECRET = process.env["SECRET_VARIABLE"]; nginxAutoConfig.start(path.join(__dirname, "config"), 18888, SECRET, "/etc/nginx/conf.d/example-autogen/", () => { return new Promise(function(resolve) { // it even works with Promises setTimeout(() => { resolve({BACKEND_PORT: +Date.now()}); }, 10000); }); } );