Amazon Forecast
Developer Guide

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DescribeForecast

Describes a forecast created using the CreateForecast operation.

In addition to listing the properties provided in the CreateForecast request, this operation lists the following properties:

  • DatasetGroupArn - The dataset group that provided the training data.

  • CreationTime

  • LastModificationTime

  • Status

  • Message - If an error occurred, information about the error.

Request Syntax

{ "ForecastArn": "string" }

Request Parameters

The request accepts the following data in JSON format.

ForecastArn

The Amazon Resource Name (ARN) of the forecast.

Type: String

Length Constraints: Maximum length of 256.

Pattern: ^[a-zA-Z0-9\-\_\.\/\:]+$

Required: Yes

Response Syntax

{ "CreationTime": number, "DatasetGroupArn": "string", "ForecastArn": "string", "ForecastName": "string", "LastModificationTime": number, "Message": "string", "PredictorArn": "string", "Status": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

CreationTime

When the forecast creation task was created.

Type: Timestamp

DatasetGroupArn

The ARN of the dataset group that provided the data used to train the predictor.

Type: String

Length Constraints: Maximum length of 256.

Pattern: ^[a-zA-Z0-9\-\_\.\/\:]+$

ForecastArn

The forecast ARN as specified in the request.

Type: String

Length Constraints: Maximum length of 256.

Pattern: ^[a-zA-Z0-9\-\_\.\/\:]+$

ForecastName

The name of the forecast.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 63.

Pattern: ^[a-zA-Z0-9][a-zA-Z0-9_]*

LastModificationTime

Initially, the same as CreationTime (status is CREATE_PENDING). Updated when inference (creating the forecast) starts (status changed to CREATE_IN_PROGRESS), and when inference is complete (status changed to ACTIVE) or fails (status changed to CREATE_FAILED).

Type: Timestamp

Message

If an error occurred, an informational message about the error.

Type: String

PredictorArn

The ARN of the predictor used to generate the forecast.

Type: String

Length Constraints: Maximum length of 256.

Pattern: ^[a-zA-Z0-9\-\_\.\/\:]+$

Status

The status of the forecast. States include:

  • ACTIVE

  • CREATE_PENDING, CREATE_IN_PROGRESS, CREATE_FAILED

  • DELETE_PENDING, DELETE_IN_PROGRESS, DELETE_FAILED

Note

The Status of the forecast must be ACTIVE before you can query or export the forecast.

Type: String

Length Constraints: Maximum length of 256.

Pattern: ^[a-zA-Z0-9\_]+$

Errors

InvalidInputException

We can't process the request because it includes an invalid value or a value that exceeds the valid range.

HTTP Status Code: 400

ResourceNotFoundException

We can't find a resource with that Amazon Resource Name (ARN). Check the ARN and try again.

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: