Get live data from HTTP server with active aggregation

[shikousa]

The HTTP server seems not to provide realtime readings, but only the aggregated values.

This delivers exactly the same, but should be different, as my aggregation time is 600s.
http://localhost/middleware.php/data.json?options=raw&from=now&uuid[]=1111-2222-3333
http://localhost:8081/1111-2222-3333

Is there a way to get the live data over HTTP? The push server is working, as I can see the live data in the middleware.

[r00t-]

the server serves data from localbuffer:
https://github.com/volkszaehler/vzlogger/blob/master/src/local.cpp#L53

which is populated with data from just after aggregation:

vzlogger/src/threads.cpp

Line 166 in df03cf6

add_ch_to_localbuffer(*(*ch)); // add this ch data to the local buffer

i'm not sure how much changes would be needed to serve non-aggregated data.
(besides obvious things like requiring a larger buffer.)

[shikousa]

During aggregation it seems that both Push Server and MQTT Data is updated.
Is MQTT really updated during aggregation, as there is another update after aggregation?

vzlogger/src/threads.cpp

Lines 136 to 147 in df03cf6

	// provide data to push data server:
	if (pushDataList) {
	const std::string uuid = (*ch)->uuid();
	pushDataList->add(uuid, rds[i].time_ms(), rds[i].value());
	print(log_finest, "added to uuid %s", "push", uuid.c_str());
	}
	#ifdef ENABLE_MQTT
	// update mqtt values as well:
	if (mqttClient) {
	mqttClient->publish((*ch), rds[i]);
	}
	#endif

Is it possible to add this code section also during aggregation?

vzlogger/src/threads.cpp

Lines 163 to 168 in df03cf6

	#ifdef LOCAL_SUPPORT
	if (options.local()) {
	shrink_localbuffer(); // remove old/outdated data in the local buffer
	add_ch_to_localbuffer(*(*ch)); // add this ch data to the local buffer
	}
	#endif

[r00t-]

Is it possible to add this code section also during aggregation?

why don't you just try it, worst case it will crash...

Is MQTT really updated during aggregation, as there is another update after aggregation?

i'm not so familiar with the MQTT integration, but i think it publishes BOTH the raw and aggregated values.