node-schedule | A cron-like and not-cron-like job scheduler for Node | Cron Utils library
kandi X-RAY | node-schedule Summary
kandi X-RAY | node-schedule Summary
Node Schedule is for time-based scheduling, not interval-based scheduling. While you can easily bend it to your will, if you only want to do something like "run this function every 5 minutes", toad-scheduler would be a better choice. But if you want to, say, "run this function at the :20 and :50 of every hour on the third Tuesday of every month," you'll find that Node Schedule suits your needs better. Additionally, Node Schedule has Windows support, unlike true cron, since the node runtime is now fully supported. Note that Node Schedule is designed for in-process scheduling, i.e. scheduled jobs will only fire as long as your script is running, and the schedule will disappear when execution completes. If you need to schedule jobs that will persist even when your script isn't running, consider using actual cron. In case you need durable jobs that persist across restarts and lock system compatible with multi-node deployments, try agenda or bree.
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Top functions reviewed by kandi - BETA
- Create a new job
- Process the nextInvocation .
- Cancel scheduled jobs .
- Schedule a job .
- Check if a value matches a matcher
- Returns the next occurrence of a rule that matches the schedule .
- Reschedule a job by name
- Cancel an invocation schedule .
- Cancel a job
- Constructor for recurrence rule .
node-schedule Key Features
node-schedule Examples and Code Snippets
Community Discussions
Trending Discussions on node-schedule
QUESTION
I'm creating an API that runs a function once every 30 seconds on demand from the client. The problem is that using Cron and Node-schedule execute all the jobs at the same time every 30 seconds regardless of the time the request came. E.g every xx:00 and xx:30 xx+1:00. The behavior that I'm looking for is to execute it with an interval depending on the request time, so if it came at xx:05 then it will execute it at xx:35 xx+1:05 and so on.
the function I'm using is :
const schedule = require('node-schedule');
schedule.scheduleJob(jobID, "*/30 * * * * *",()=> {JobFunction(jobID)})
...ANSWER
Answered 2022-Mar-17 at 12:42I think you can do that with bree package which permit you to specify a start date ant an interval: https://github.com/breejs/bree#job-interval-and-timeout-values
But i have not try this
QUESTION
I have a function that gets input constantly but then only processes it every minute with a cron job.
The most recent output should be stored in a variable and retrieved from the outside at random times.
Here in a very simplified form:
...ANSWER
Answered 2022-Feb-07 at 01:30It seems like you just let your chron function run as scheduled and you save the latest result in a module-scoped variable. Then, create another exported function that anyone else can call to get the latest result.
You're only showing pseudo-code (not your real code) so it is not clear exactly what you want to save for future inquiries to return. You will have to implement that part yourself.
So, if you just wanted to save the most recent value:
QUESTION
I have upgraded my angular to angular 13. when I run to build SSR it gives me following error.
...ANSWER
Answered 2022-Jan-22 at 05:29I just solve this issue by correcting the RxJS version to 7.4.0. I hope this can solve others issue as well.
QUESTION
I'm new to js and programming in general. I need to have separated scheduled jobs in my script using node-schedule, but I can't figure out how because each time when 1st scheduled job is to be executed it immediately executes both the first and the second job.
And the functions even get executed the other way around, the second function gets executed first (which is set to a later time than first function) and the first function gets executed second.
My code:
...ANSWER
Answered 2022-Jan-08 at 05:29node-schedule take two arguments. 1st one being the time(in cron or equivalent syntax.) 2nd argument being the callback function which will be triggered at the time syntax match.
check the Date format.
QUESTION
I have a GET route within my app which simply initiates a load of scheduled tasks/cron jobs (using NPM modules such as node-cron and node-schedule)
I have recently implemented some logic to do some scraping of some player information from steam profiles inside repeatedRequests (main logic of my API). I have deployed my app to AWS which has allowed me to set up some basic monitoring and metrics of memory and CPU usage.
Looking at the MemoryUtilization chart
We can see that every 6 hours there is a constant incline in the memory usage of the app, which would point to the cron job I have recently introduced, am I not executing the cron job correctly? Could I handle promises better?
Is there also anything else inside repeatedRequests or other routes that I should or could be handling better which could be leading to memory leaks?
The larger requests made to the API start to slow down after about a day or a day and a half of the app starting from fresh, as you can see the memory usage has already increased 3 times since it started yesterday from 4% to 12% :O So I have to give it a manual reboot every week or it has crashed many times before too...
Thanks guys
...ANSWER
Answered 2021-Nov-22 at 01:09It was a silly mistake, the cron job was set to start a new job every minute from every 6th, creating an infinite amount of new jobs that were stacking on each other
Since then the syntax has been changed to every 6th hour from
* */6 * * * to 0 */6 * * * and the memory usage is now sitting at a constant 7%, happy days!
QUESTION
I'm trying to add a scheduler to my express typescript app and my code is as follows:
app.ts (The port and host are defined)
...ANSWER
Answered 2021-Sep-15 at 11:40QUESTION
I want to automatically delete user data, only if they have not verified their email within 7 days. I googled and found this answer. I tried & Here is the source code:
user schema
...ANSWER
Answered 2021-Jul-31 at 18:06Your schema uses the timestamps option. From the documentation:
The timestamps option tells mongoose to assign createdAt and updatedAt fields to your schema. The type assigned is Date.
By default, the names of the fields are createdAt and updatedAt. Customize the field names by setting timestamps.createdAt and timestamps.updatedAt.
In your code, the filter specifies created_at, when it should be createdAt.
QUESTION
I have a HTML slider with 4 positions. 15, 30, 45, 60 "minutes". Depending on the position I want to execute some code every selected minutes. So I decides to implement a switch case and use node-cron (or node-schedule) to achieve this.
But I am struggling with the cron jobs. So if I start with every 30 minutes and than switch to e.g. 15 minutes there are 2 cron jobs running and so on. I experimented with .stop() end .start() (or .cancel()) but without success.
Can anyone please give me a hint to achieve my goal? Maybe there is a totally different solution...
Thanks so far
...ANSWER
Answered 2021-Jul-09 at 13:14I found a working solution. I guess this is kind of messy code but it works :) (refactoring is coming)
What I've done is to declare the CronJobs globally and in the switch statement I start and stop the Jobs.
I tried to declare the CronJobs inside the function hydrate_time() but it wont work.
QUESTION
I developed app and I want to make it if the user do nothing in 30 minutes close the app.
So I search it on google to solve this problem and I found that there is 'powerMonitor' API in electron but the problem is my app is old version (Electron 3.1.14) so it doesn't support various methods.
Electron powerMonitor API Docs
I think I should use powerMonitor.querySystemIdleTime() method and I tried to test 'pwoerMonitor' API so I paste code but
console.log(powerMonitor.querySystemIdleTime()) it returns this error message.
How can I detect system idle and do something in electron? Should I use another package?
...ANSWER
Answered 2021-Jul-02 at 10:07According to the docs the call is: powerMonitor.querySystemIdleTime(callback) and as the error message says, you are not giving the required argument.
Try changing:
QUESTION
I'm making a discord.js scheduling bot. I am using node-schedule for this. It's not throwing any errors but it's still not sending a message. What am I doing wrong, and how do I get rid of this issue? (thank you in advance)
My code is:
...ANSWER
Answered 2021-May-31 at 03:44You can't run the schedule.scheduleJob from inside the client.on function and expect the message to still exist. Discord API expects a response to a webhook within a specific time before it times out.
Also, if the bot runs on a cloud service, the node it runs on might be restarting once in a while, which messes up in-memory data like attaching cron jobs in node-schedule.
You should probably get scheduled time by the user and persist the data in some sort of database. You should use database read\writes in order to save the data between your cloud provider restarts (unless you have a paid subscription).
Have a global cron job or intervalSince you can potentialy have thousands of scheduled meetings, it's better in your case to check for meetings withing a certain interval and send all the reminders at the same time.
Let's say a user can't give us a time more specific than a certain minute. Then we can check for reminders every minute, knowing we'll inform users before the meeting starts.
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