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This repository has been archived by the owner on Oct 12, 2023. It is now read-only.
I am using Iot hub edge (V1) and it works fine in sending the data. but by using Microsoft.Azure.IoT.Gateway ,the message class, I can not set the content type for the message before sending it to the Iothub. and I can not use the Microsoft.Azure.Devices.Client in the Iot edge model which has in the message class the message.ContentEncoding = "utf-32" and message.ContentType = "application/json";.
Could you please help in that? How to add the content type to a message send by IoT edge model to Iot hub?
Thanks
The text was updated successfully, but these errors were encountered:
Well in my knowledge its is like the following:
broker message: Microsoft.Azure.IoT.Gateway
message to iot hub: Microsoft.Azure.Devices.Client
Hence you have to use both. The ContentType and Encoding on the broker should not be important. And to send it to your IoTHub you can set it in the Microsoft.Azure.Devices.Client.Message.
We automatically copy the broker message's properties over to the IoT Hub message. However, we don't map anything into the IoT Hub message's system properties, and I think the content encoding and type are both system properties.
I believe we'd have to make changes to the iothub module, to the function IoTHubMessage_CreateFromGWMessage here: https://github.com/Azure/iot-edge/blob/2018-01-31/v1/modules/iothub/src/iothub.c#L642. When it maps properties between messages, it should look for the content encoding & type properties specifically and map them to system properties.
It sounds like a fairly easy fix, but I don't think the core team will be able to do this work anytime soon. If you'd like to do the work and make a pull request, we'd love to get it integrated into the repo.
Copied from Azure/azure-iot-protocol-gateway#114 (@almusawi):
Hi,
I am using Iot hub edge (V1) and it works fine in sending the data. but by using Microsoft.Azure.IoT.Gateway ,the message class, I can not set the content type for the message before sending it to the Iothub. and I can not use the Microsoft.Azure.Devices.Client in the Iot edge model which has in the message class the message.ContentEncoding = "utf-32" and message.ContentType = "application/json";.
Could you please help in that? How to add the content type to a message send by IoT edge model to Iot hub?
Thanks
The text was updated successfully, but these errors were encountered: