How to create application level variable in node.js - node.js

Question

In my project I have running more than 100 cron jon using npm cron. My problem is I need to stop any cron job at run time.
my code is
in app.js file
var cronJobRunner =require('cronJobHandle.js');
global.jobManager = {};
cronJobRunner.startServiceFromCronJobManager("service 1")
in cronJobHandle.js
var CronJob = require('cron').CronJob;
module.exports = {
startServiceFromCronJobManager: function (scheduleServiceName) {
var serviceList =['service1','service2','service3','service4']
serviceList.forEach(function(service){
var job = new CronJob('* * * * * *', function(){
console.log("Service running");
}, function () {
// This function is executed when the job stops
},
true /* Start the job right now */,
timeZone /* Time zone of this job. */
);
global.jobManager.service = job;
});
},
stopServiceFromCronJobManager: function (scheduleServiceName) {
console.log(global.jobManager);
global.jobManager[scheduleServiceName].stop();
}
};
router.js
var cronJobRunner =require('cronJobHandle.js');
app.route('/stopservice',function(req,res){
cronJobRunner.stopServiceFromCronJobManager("service1");
}
When I call http://localhost:9999/stopservice
I am getting undefine in console.log(global.jobManager);
Please help me how to maintain cron jobManager variable comman for all server side js files

Answer 1

It is global but there's two bugs in your code.
1) you're calling the property called "service" instead of the one whose name is in service.
Change
global.jobManager.service = job;
to
global.jobManager[service] = job;
2) you're pottentially using global.jobManager in cronJobHandle.js before to declare it in app.js
There's a better solution. you don't need and should use global. Just declare a standard variable in cronJobHandle.js instead (so that it isn't accessed by other modules):
var jobManager = {};
...
jobManager[service] = job;
...
jobManager[scheduleServiceName].stop();