mirror of
https://github.com/hedgedoc/hedgedoc.git
synced 2024-12-28 10:42:57 +00:00
17 lines
904 B
Markdown
17 lines
904 B
Markdown
# Events
|
|
|
|
!!! info "Design Document"
|
|
This is a design document, explaining the design and vision for a HedgeDoc 2
|
|
feature. It is not a user guide and may or may not be fully implemented.
|
|
|
|
In HedgeDoc 2, we use an event system based on [EventEmitter2][eventemitter2].
|
|
It's used to reduce circular dependencies between different services and inform these services about changes.
|
|
|
|
HedgeDoc's system is basically [the system NestJS offers][nestjs/eventemitter].
|
|
The config for the `EventEmitterModule` is stored in `events.ts` and exported as `eventModuleConfig`.
|
|
In the same file enums for the event keys are defined. Each of these events is expected to be sent with an additional value.
|
|
In the enum definition a comment should tell you what exactly this value should be.
|
|
|
|
[eventemitter2]: https://github.com/EventEmitter2/EventEmitter2
|
|
[nestjs/eventemitter]: https://docs.nestjs.com/techniques/events
|
|
|