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Realtime #44

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dbrgn opened this issue Mar 25, 2018 · 2 comments
Open

Realtime #44

dbrgn opened this issue Mar 25, 2018 · 2 comments
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@dbrgn
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dbrgn commented Mar 25, 2018

How complicated would it be to add realtime support?

It would be great if we could subscribe to new measurements (for all sensors), for example over a WebSocket. (SSE would be another option, but it's far less well supported than WebSockets.)
@schmijos
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schmijos commented May 1, 2019

Cool idea. Should be easy with ActionCable.

@dbrgn
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dbrgn commented May 2, 2019

Ok, let's do some speccing:

  • Application fetches initial state (sensors + historic data)
  • Application subscribes to a WebSocket endpoint
  • Every time a new measurement arrives, that data is pushed as a "measurement" event to all subscribers
  • The subscribers receive the update and add it to the currently displayed data.

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@dbrgn @schmijos