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I am trying to understand about the events and observers in magento.

I created an observer to listen to an event in the checkout page. I have configured it and it triggers after the place order button is pressed.

My doubt is the observer running in background or in foreground?

Note : I saw that the error in the observer stops the order execution.

One more question I have:

If it runs in foreground, what if I have more than one observer which configured to use the same event. What will be the order of execution?

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  • It depends on the dispatched event for which you have created an observer. Commented May 16 at 12:33
  • Foreground is the short answer. Follow where dispatchEvent is used in the codebase Commented May 16 at 19:06
  • @HerveTribouilloy looks like you are correct. But if i want to run the observer in the background is there any way to do that? Commented May 17 at 9:13
  • use crons, I suspect I would need to understand the context of your query. You need to add more details Commented May 17 at 9:31
  • @HerveTribouilloy But crons are supposed to run in a periodical time,right. I wanted to run this like a thread Commented May 17 at 10:10

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