Alexa.SmartVision.ObjectDetectionSensor.ErrorResponse Interface 1.0

If Alexa sends an Alexa.SmartVision.ObjectDetectionSensor directive to your skill and you can't handle it successfully, respond with an Alexa.SmartVision.ObjectDetectionSensor.ErrorResponse event. For details, see Alexa.SmartVision.ObjectDetectionSensor.

ErrorResponse event

In the payload for the Alexa.SmartVision.ObjectDetectionSensor.ErrorResponse, specify the type of the error and include a message with information about the error. For the list of Alexa.SmartVision.ObjectDetectionSensor error types, see Error type values. You can send the error response in a synchronous or asynchronous response. For more details, see Alexa.ErrorResponse.

ErrorResponse event payload properties

Property Description Type Required

type

Type of error. Alexa shares this with the customer.

String

Yes

message

Descriptive message for the error. Alexa doesn't share this with the customer.

String

Yes

ErrorResponse event format

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{
"event": {
    "header": {
      "namespace": "Alexa.SmartVision.ObjectDetectionSensor",
      "name": "ErrorResponse",
      "messageId": "Unique identifier, preferably a version 4 UUID",
      "correlationToken": "Opaque correlation token that matches the request",
      "payloadVersion": "1.0"
    },
    "endpoint":{
      "endpointId": "Endpoint ID"
    },
    "payload": {
      "type": "Error type",
      "message": "Error message"
    }
  }
}

Error type values

The following table shows the valid Alexa.SmartVision.ObjectDetectionSensor error types.

Property Description

SUBSCRIPTION_REQUIRED

The requested object class wasn't enabled because a subscription is required. If the error was due to an invalid object class, in the payload, include the following parameters:

INVALID_VALUE

The requested object class wasn't enabled due to an invalid object class, in the payload, include the following parameters:

In addition to the Alexa.SmartVision.ObjectDetectionSensor.ErrorResponse error types, you can also use Alexa error types, such as INVALID_VALUE and include the errorClasses and final list of enabled objectDetectionClasses in the payload. For details about other error types, see Alexa.ErrorResponse error type values.

Alexa.SmartVision.ObjectDetectionSensor.ErrorResponse examples

The following examples show the payload for different error types.

SUBSCRIPTION_REQUIRED

The following is an example error response for the SUBSCRIPTION_REQUIRED error type. Include the errorClasses and objectDetectionClasses in the payload. These properties are arrays of ClassConfiguration objects.

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{
    "event": {
        "header": {
            "namespace": "Alexa.SmartVision.ObjectDetectionSensor",
            "name": "ErrorResponse",
            "messageId": "Unique identifier, preferably a version 4 UUID",
            "correlationToken": "Opaque correlation token that matches the request",
            "payloadVersion": "1.0"
        },
        "endpoint": {
            "endpointId": "Endpoint id"
        },
        "payload": {
            "type": "SUBSCRIPTION_REQUIRED",
            "message": "The classes could not be enabled because a subscription is required.",
            "errorClasses": [{
                "imageNetClass": "cat"
            }],
            "objectDetectionClasses": [{
                "imageNetClass": "person"
            }]
        }
    }
}

INVALID_VALUE

The following is an example error response for the INVALID_VALUE error type. Include the errorClasses and objectDetectionClasses in the payload.

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{
  "event": {
    "header": {
      "namespace": "Alexa.SmartVision.ObjectDetectionSensor",
      "name": "ErrorResponse",
      "messageId": "Unique identifier, preferably a version 4 UUID",
      "correlationToken": "Opaque correlation token that matches the request",
      "payloadVersion": "1.0"
    },
    "endpoint":{
      "scope":{
        "type": "BearerToken",
        "token": "OAuth2 bearer token"
      },
      "endpointId": "Endpoint id"
    },
    "payload": {
        "type": "INVALID_VALUE",
        "message": "Invalid parameter value.",
        "errorClasses": [{
            "imageNetClass": "xxxxx"
        }],
        "objectDetectionClasses": [{
            "imageNetClass": "person"
        }]
    }
  }
}

Last updated: Oct 19, 2022