Overview
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IoT Platform provides the device tagging feature. You can manage devices by customizing tags. This article describes how to configure Link SDK for C to update or delete tags.
Prerequisites
- You have the device authentication information.
- Obtain the C Link SDK.
When you customize the SDK, on the Device label.
- Set up the development environment.
Background information
- For more information about the Alink data format of device tags, see Device tags.
- For more information about how to add device tags in the IoT Platform console, see Edit device tags.
- For more information about how to manage device tags by using IoT Platform API operations, see the following articles:
- Add device tags: SaveDeviceProp
- Delete device tags: DeleteDeviceProp
- Query device tags: QueryDeviceProp
How it works
An application establishes a connection with the IoT Platform by calling the C Link SDK APIs based on theconnect with IoT Platform over MQTT and send a request to submit or delete device tags. Each device tag is in the key:value format.
The following time series chart uses the device application./demos/devinfo_posix_demo.c as an example to illustrate the implementation flow.
For more information about device tag-specific API operations, see aiot_devinfo_api.h.
Examples
- For a code sample of the MQTT connection feature, see Example.
- For error codes related to the MQTT connection feature, see aiot_devinfo_api.h.
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