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nanoframework
Direct Method doesn't work for PnP Device with components
Library/API/IoT binding
nanoFramework.Azure.Devices.Client
Visual Studio version
VS2022 Version 17.3.6
.NET nanoFramework extension version
2022.2.0.44
Target name(s)
M5StickCPlus
Firmware version
1.8.0.643
Device capabilities
No response
Description
Source file: nanoFramework.Azure.Devices/nanoFramework.Azure.Devices.Client/DeviceClient.cs
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DirectMethodTopic (line 447+) is working well for default (root) component direct method, but for other ones will never invoke its delegate, in other words there is no match for methodName contains a star character, for instance, thermostat1*getMaxMinReport, therefore this part must be fixed replacing by underscore ('_') character and delegate name should be used as thermostat1_getMaxMinReport.
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DirectMethodTopic Return Call (line 468) doesn't handle a long-running command ( https://learn.microsoft.com/en-us/azure/iot-central/core/howto-use-commands#long-running-commands) where a response back return 202 code, such as Accepted to indicate, that the result is pending. For this case the delegate will return either the res=null or res="" and based on this, the topic should be in the line 468 looks like the following: $"$iothub/methods/res/202/?$rid={rid:X}". Note, that the payload should be shows a text, that the command is in pending process.
Thanks Roman
How to reproduce
No response
Expected behaviour
No response
Screenshots
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Sample project or code
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Aditional information
No response
Thanks for the sumission.
On case 1: you basically ask to replace in the coming "Topic" the character * by _ so it can be used in the methog name. correct? If it's about this, please do not hesitate to provide a PR.
On case 2: correct, there is no support for long running. nanoFramework is nano, so there are couple of elements that we decided not to implement for simplification. If that's business critical for you, feel free to propose a PR to add this capability.
@romankiss can you please point me to the Azure docs where the naming handling is explained? (the 1st part about replacing the * with _)
Hi @josesimoes , the naming handling for direct method invoked on the component in the PnP device is described in the IoT Plug and Play device developer guide and IoT Plug and Play conventions.