Aliasing IoT Sitewise Asset Attributes

Question

Is it possible to alias the attributes of an IoT Sitewise asset, so that we can update the attributes dynamically for many devices ?

Say I have many IoT things , modelled as assets, iot-car. Cars have a 'color' attribute, string, which is updated very rarely, and so isn't really timeseries data, but a car an be painted once per year maybe.

I know I can manually change the attribute via the cli or console, and I know I can automatically update it from an IoT Rule if I specify the Asset ID and the property ID (and I can see that the 'color' property ID is the same for all my different cars).

Is it possible, using aliasing/substitution/similar, to have cars automatically update themselves, without requiring a different rule per car ? As I have to specify the property AND asset ID in the rule it seems like I can't.

Accepted Answer

Hi scriobhneoir,

perhaps you can change the color attribute to a measurement. Then you can update the color with a property alias.

In case you want to modify the attribute via IoT Core you don't need one rule per car. You can use one rule and put the assetId and propertId into the payload for example:

```
{
  "assetId": 1234,
  "propertId: 5678,
  "color": "gray"
}
```

Then you can use substitution templates in the IoT rule action, for example `${propertId}` or `${assetId}`.

Cheers,  
Philipp

Answer

Hi scriobhneoir,

does this help: [Mapping industrial data streams to asset properties](https://docs.aws.amazon.com/iot-sitewise/latest/userguide/connect-data-streams.html)?

Cheers,  
Philipp

Aliasing IoT Sitewise Asset Attributes

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