Passthrough Handler
Introduction
IoDataReportPassThrough is a special type of message that is only recognized by Nimbus-adapter module. Nimbus-adapter module treats these type of messages separately & passes it to Nimbus.
For any Edge App to send passthrough messages to Nimbus, Passthrough-Handler Edge App makes it easy by extracting out all the logic to make any message an IoDataReportPassThroughMsg and send it to NImbus.
How it Works
IoDataReportPassThroughMsg:- It is a special type that Passthrough-Handler Edge App use to construct a passthrough message.
Currenly, Passthrough-Handler Edge App supports the below schema types to be converted to IoDatReportPassThroughMsg.
- Event
- Request
- IODataReport
- FileUpload
Passthrough-Handler Edge App expects the message sent to it as serialized version (equivalent Json String) of the above message type on a custom topic (topic name should have one of the above type names at the end).
Supported End points/Topics
Any message should be sent to the Passthrough-Handler Edge App over these topics depending on the above type of message.
- PassThrough/Event,
- PassThrough/Request,
- PassThrough/IODataReport,
- PassThrough/FileUpload.
FIle-Upload:- The Sender Edge App is expected to send the content of the file to be wrapped in json. For example:
{
"File": "File Content"
}
Message Format
After receiving messages over these topics, Passthrough-Handler Edge App converts it to an IoDataReportPassThroughMsg payload.
Message --> This is test passthrough event.
IODataPassThroughTelemetry
{ .img-thumbnail }IODataReportPassThroughMsg
{ .img-thumbnail }Such payload is sent to ION as IODataReportPassthrough message type which indicates Nimbus to forward message to Onesite, Onesite can decode the protobuf message and show data.
{ .img-thumbnail }