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flowbased / flowtrace

Traces for retroactive debugging of FBP programs
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Make format streamable #36

Open jonnor opened 7 years ago

jonnor commented 7 years ago

This way debugging tools can be live updated with changes to the system.

One possibility is to use text/event-stream format. It is a simple \n\n delimited format, with good support for JSON payloads. https://developer.mozilla.org/en-US/docs/Web/API/Server-sent_events/Using_server-sent_events#Event_stream_format It has the benefit of also being used in server-side-events which is supported by webbrowsers.

The header information like the graph should also be sent as an event. It should be supported to have this change in the middle of a stream also. Ideally tools can also deal with the header not being present, and recontructing information from data events (to the extent possible)

bergie commented 7 years ago

We should consider supporting basically any FBP protocol event in addition to packets. Network start/stop, process-error etc.