Liam Gallagher f1fbb668f9 Watching versions of bevy/get and bevy/list with HTTP SSE (#15608) ... ## Objective Add a way to stream BRP requests when the data changes. ## Solution #### BRP Side (reusable for other transports) Add a new method handler type that returns a optional value. This handler is run in update and if a value is returned it will be sent on the message channel. Custom watching handlers can be added with `RemotePlugin::with_watching_method`. #### HTTP Side If a request comes in with `+watch` in the method, it will respond with `text/event-stream` rather than a single response. ## Testing I tested with the podman HTTP client. This client has good support for SSE's if you want to test it too. ## Parts I want some opinions on - For separating watching methods I chose to add a `+watch` suffix to the end kind of like `content-type` headers. A get would be `bevy/get+watch`. - Should watching methods send an initial response with everything or only respond when a change happens? Currently the later is what happens. ## Future work - The `bevy/query` method would also benefit from this but that condition will be quite complex so I will leave that to later. --------- Co-authored-by: Zachary Harrold <zac@harrold.com.au>		2024-10-08 16:21:46 +00:00
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client.rs	Refactor BRP to allow for 3rd-party transports (#15438)	2024-09-27 20:09:46 +00:00
server.rs	Watching versions of bevy/get and bevy/list with HTTP SSE (#15608)	2024-10-08 16:21:46 +00:00