# Discourse Event Bus Question
**URL:** https://meta.discourse.org/t/discourse-event-bus-question/128107
**Category:** Development
**Created:** [September 9, 2019, 11:07pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107 "2019-09-09T23:07:51Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Marcy](https://meta.discourse.org/u/Marcy)
#### Post date: [September 9, 2019, 11:07pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107/1 "2019-09-09T23:07:51Z")
I’m sorry if this is wrong area but does Discourse fire an event when the profile JSON file is requested over HTTP?
[https://meta.discourse.org/u/Marcy.json](https://meta.discourse.org/u/Marcy.json) for example.
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### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [September 9, 2019, 11:29pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107/2 "2019-09-09T23:29:30Z")
No it does not, you would have to write a plugin to intercept that info.
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### Author:  [@Marcy](https://meta.discourse.org/u/Marcy)
#### Post date: [September 9, 2019, 11:31pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107/3 "2019-09-09T23:31:55Z")
I’d like to but I’m unsure where to start. I want to change information on the JSON file before it’s displayed to the client.
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### Author:  [@sam](https://meta.discourse.org/u/sam)
#### Post date: [September 9, 2019, 11:34pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107/4 "2019-09-09T23:34:09Z")
That would mean you want to amend the serializer, look at plugins such as discourse assign or discourse solved that make serializer changes.
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### Author:  [@Marcy](https://meta.discourse.org/u/Marcy)
#### Post date: [September 9, 2019, 11:52pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107/5 "2019-09-09T23:52:06Z")
Thanks for the tip, I found this which I assume makes the {Username}.json file?
[https://github.com/discourse/discourse/blob/master/app/serializers/user\_serializer.rb](https://github.com/discourse/discourse/blob/master/app/serializers/user_serializer.rb)
Is there any Discourse Ruby API on what events exist, etc? As I don’t know how I’d make changes to it before being displayed as I wanna change the email field before it’s displayed.
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### Author:  [@system](https://meta.discourse.org/u/system)
#### Post date: [April 13, 2023, 3:41pm UTC](https://meta.discourse.org/t/discourse-event-bus-question/128107/6 "2023-04-13T15:41:30Z")