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Uplinks are raw sent messages from a device that were received and tried to be processed by the parser to create parsed records ("Device Data"). Not all uplinks return a good data result, then the parser result is "Parser returned nil". This is not a general error, but a hint that no device data could be extracted from the uplink. Often this happens with status uplinks that do not contain user data but can be processed by the parser for meta information, e.g. battery voltage, that are shown under "Device Properties".
Simulate Uplinks
For test purposes, it may be useful to simulate uplinks through the platform and let the parser process them again. For this purpose, the "data" part of a past upload can be used, as shown in the highlighted part abovebelow.
The copied data can then be pasted in under the "Settings" Tab and send to the platform again for processing with a click on "Send Data". This data then appears again under "Uplinks" with "http" as datasource. Downstream processing, including any integrations, is then just as if the data had been sent from a physical device.
Downlinks
A list of queued and sent downlinks.
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