Web Jobs

• Doing regular jobs and batch work in the background. Now Azure Web Sites support a thing called "Azure WebJobs"
• WebJobs are invoked in three different ways: on demand, continuously or on a schedule.
• There is no additional cost to use WebJobs.

Notes

• Web apps in Free mode can time out after 20 minutes if there are no requests to the scm (deployment) site and the web app's portal is not open in Azure. Requests to the actual site will not reset this.
• Code for a continuous job needs to be written to run in an endless loop.
• Continuous jobs run continuously only when the web app is up.
• Basic and Standard modes offer the Always On feature which, when enabled, prevents web apps from becoming idle.
• You can only debug continuously running WebJobs. Debugging scheduled or on-demand WebJobs is not supported.

Reference

• Documentation: https://docs.microsoft.com/en-us/azure/app-service-web/web-sites-create-web-jobs
• http://www.hanselman.com/blog/IntroducingWindowsAzureWebJobs.aspx