# Multiple IMediaStreamActionNotify3 listeners

**URL:** https://community.wowza.com/t/multiple-imediastreamactionnotify3-listeners/41429
**Category:** Wowza Streaming Engine
**Created:** [March 5, 2014, 12:11am UTC](https://community.wowza.com/t/multiple-imediastreamactionnotify3-listeners/41429 "2014-03-05T00:11:19Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Yevgen\_Voronetskyy](https://avatars.discourse-cdn.com/v4/letter/y/f17d59/32.png) [@Yevgen\_Voronetskyy](https://community.wowza.com/u/Yevgen_Voronetskyy)
#### Post date: [March 5, 2014, 12:11am UTC](https://community.wowza.com/t/multiple-imediastreamactionnotify3-listeners/41429/1 "2014-03-05T00:11:19Z")

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Hello,

In my application I have 2 modules A and B which both implementing IMediaStreamActionNotify3 and are attached to listen various events through onStreamCreate method (exactly as it was described many times in this forum).

Each implementation of IMediaStreamActionNotify3 in A and B has it’s own logic for onPublish event.

I didn’t find in the documentation how the publish event is propagated through multiple listeners which may listen the same event.

Does Wowza guarantees some order of firing A.onPublish A after/before B.onPublish

Thanks in advance for your help!

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### Author: ![Matt\_Young](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/matt_young/32/389_2.png) [@Matt\_Young](https://community.wowza.com/u/Matt_Young)
#### Post date: [March 6, 2014, 4:41am UTC](https://community.wowza.com/t/multiple-imediastreamactionnotify3-listeners/41429/2 "2014-03-06T04:41:57Z")

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In general, the order by which event handlers are invoked will coincide with the order they are defined within the Configuration section.