Calling AWS APIs using Postman | REST API call to get IOT Shadow Document

Опубликовано: 03 Январь 2023
на канале: TecnoTab

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Aws Documentation Link: https://docs.aws.amazon.com/iot/lates...

Device Shadow REST API

The endpoint is specific to your AWS account. To find your endpoint, you can:

Use the describe-endpoint command from the AWS CLI.

Use the AWS IoT console settings. In Settings, the endpoint is listed under Custom endpoint

Use the AWS IoT console thing details page. In the console:

Open Manage and under Manage, choose Things.

In the list of things, choose the thing for which you want to get the endpoint URI.

Choose the Device Shadows tab and choose your shadow. You can view the endpoint URI in the Device Shadow URL section of the Device Shadow details page.

The format of the endpoint is as follows:
identifier.iot.region.amazonaws.com

GetThingShadow
Gets the shadow for the specified thing.

The response state document includes the delta between the desired and reported states.

Request
The request includes the standard HTTP headers plus the following URI:

HTTP GET https://endpoint/things/thingName/shadow?name=shadowName
Request body: (none)
The name query parameter is not required for unnamed (classic) shadows.

Response
Upon success, the response includes the standard HTTP headers plus the following code and body:

HTTP 200
Response Body: response state document
For more information, see Example Response State Document.

Authorization
Retrieving a shadow requires a policy that allows the caller to perform the iot:GetThingShadow action. The Device Shadow service accepts two forms of authentication: Signature Version 4 with IAM credentials or TLS mutual authentication with a client certificate.

UpdateThingShadow
Updates the shadow for the specified thing.

Updates affect only the fields specified in the request state document. Any field with a value of null is removed from the device's shadow.

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