REST APIs job scheduling

Question

I have a backend system which is collection of multiple rest APIs. There is one API which I want to automate i.e. the API should be triggered daily on a particular time like 11 AM.

I am using Jersey-2.0 on tomcat. Services uses AWS-DynamoDB, SNS, SES.

Does AWS have a scheduler which can invoke the API endpoint?

OR

Can I use the same EC2-instance for triggering the API on which the tomcat is hosted?

You can use [CloudWatch Events](https://docs.aws.amazon.com/AmazonCloudWatch/latest/events/ScheduledEvents.html) to execute lambda function on regular basis which will trigger your api. — Marcin, Mar 22 '20 at 10:27

Anton · Accepted Answer · 2020-03-22T16:50:12.613

1

You can either use CloudWatch Events Rule That Triggers on a Schedule or a cron, not corn :) job on your EC2 instance.

edited Mar 22 '20 at 16:50

answered Mar 22 '20 at 15:35

Anton

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Are corn jobs busy waiting? – Kuldeep Yadav Mar 22 '20 at 16:34
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corn jobs? Did you mean to say CRON jobs? – Dharman Mar 22 '20 at 16:41
Yes, Are CRON jobs busy waiting? – Kuldeep Yadav Mar 24 '20 at 02:07
Here is a good background on how exactly Cron jobs operate: https://stackoverflow.com/a/4141239/5535604 so if you are concerned about cpu and memory consumption of the idle Cron jobs - don't worry. They don't. – Anton Mar 24 '20 at 11:16

REST APIs job scheduling

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