Amazon IoT data examples using Amazon CLI - Amazon Command Line Interface
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Amazon IoT data examples using Amazon CLI

The following code examples show you how to perform actions and implement common scenarios by using the Amazon Command Line Interface with Amazon IoT data.

Actions are code excerpts from larger programs and must be run in context. While actions show you how to call individual service functions, you can see actions in context in their related scenarios and cross-service examples.

Scenarios are code examples that show you how to accomplish a specific task by calling multiple functions within the same service.

Each example includes a link to GitHub, where you can find instructions on how to set up and run the code in context.

Topics

Actions

The following code example shows how to use delete-thing-shadow.

Amazon CLI

To delete a device's shadow document

The following delete-thing-shadow example deletes the entire shadow document for the device named MyRPi.

aws iot-data delete-thing-shadow \
    --thing-name MyRPi \
    "output.txt"

The command produces no output on the display, but output.txt contains information that confirms the version and timestamp of the shadow document that you deleted.

{"version":2,"timestamp":1560270384}

For more information, see Using Shadows in the Amazon IoT Developers Guide.

The following code example shows how to use get-thing-shadow.

Amazon CLI

To get a thing shadow document

The following get-thing-shadow example gets the thing shadow document for the specified IoT thing.

aws iot-data get-thing-shadow \
    --thing-name MyRPi \
    output.txt

The command produces no output on the display, but the following shows the contents of output.txt:

{
  "state":{
    "reported":{
    "moisture":"low"
    }
  },
  "metadata":{
    "reported":{
      "moisture":{
        "timestamp":1560269319
      }
    }
  },
  "version":1,"timestamp":1560269405
}

For more information, see Device Shadow Service Data Flow in the Amazon IoT Developers Guide.

  • For API details, see GetThingShadow in Amazon CLI Command Reference.

The following code example shows how to use update-thing-shadow.

Amazon CLI

To update a thing shadow

The following update-thing-shadow example modifies the current state of the device shadow for the specified thing and saves it to the file output.txt.

aws iot-data update-thing-shadow \
    --thing-name MyRPi \
    --payload "{"state":{"reported":{"moisture":"okay"}}}" \
    "output.txt"

The command produces no output on the display, but the following shows the contents of output.txt:

{
    "state": {
        "reported": {
            "moisture": "okay"
        }
    },
    "metadata": {
        "reported": {
            "moisture": {
                "timestamp": 1560270036
            }
        }
    },
    "version": 2,
    "timestamp": 1560270036
}

For more information, see Device Shadow Service Data Flow in the Amazon IoT Developers Guide.