Amazon Forecast Query Service 2018-06-26
- Client: Aws\ForecastQueryService\ForecastQueryServiceClient
- Service ID: forecastquery
- Version: 2018-06-26
This page describes the parameters and results for the operations of the Amazon Forecast Query Service (2018-06-26), and shows how to use the Aws\ForecastQueryService\ForecastQueryServiceClient object to call the described operations. This documentation is specific to the 2018-06-26 API version of the service.
Operation Summary
Each of the following operations can be created from a client using
$client->getCommand('CommandName'), where "CommandName" is the
name of one of the following operations. Note: a command is a value that
encapsulates an operation and the parameters used to create an HTTP request.
You can also create and send a command immediately using the magic methods
available on a client object: $client->commandName(/* parameters */).
You can send the command asynchronously (returning a promise) by appending the
word "Async" to the operation name: $client->commandNameAsync(/* parameters */).
- QueryForecast ( array $params = [] )
Retrieves a forecast for a single item, filtered by the supplied criteria.
- QueryWhatIfForecast ( array $params = [] )
Retrieves a what-if forecast.
Operations
QueryForecast
$result = $client->queryForecast([/* ... */]); $promise = $client->queryForecastAsync([/* ... */]);
Retrieves a forecast for a single item, filtered by the supplied criteria.
The criteria is a key-value pair. The key is either item_id (or the equivalent non-timestamp, non-target field) from the TARGET_TIME_SERIES dataset, or one of the forecast dimensions specified as part of the FeaturizationConfig object.
By default, QueryForecast returns the complete date range for the filtered forecast. You can request a specific date range.
To get the full forecast, use the CreateForecastExportJob operation.
The forecasts generated by Amazon Forecast are in the same timezone as the dataset that was used to create the predictor.
Parameter Syntax
$result = $client->queryForecast([
'EndDate' => '<string>',
'Filters' => ['<string>', ...], // REQUIRED
'ForecastArn' => '<string>', // REQUIRED
'NextToken' => '<string>',
'StartDate' => '<string>',
]);
Parameter Details
Members
- EndDate
-
- Type: string
The end date for the forecast. Specify the date using this format: yyyy-MM-dd'T'HH:mm:ss (ISO 8601 format). For example, 2015-01-01T20:00:00.
- Filters
-
- Required: Yes
- Type: Associative array of custom strings keys (AttributeName) to strings
The filtering criteria to apply when retrieving the forecast. For example, to get the forecast for
client_21in the electricity usage dataset, specify the following:{"item_id" : "client_21"}To get the full forecast, use the CreateForecastExportJob operation.
- ForecastArn
-
- Required: Yes
- Type: string
The Amazon Resource Name (ARN) of the forecast to query.
- NextToken
-
- Type: string
If the result of the previous request was truncated, the response includes a
NextToken. To retrieve the next set of results, use the token in the next request. Tokens expire after 24 hours. - StartDate
-
- Type: string
The start date for the forecast. Specify the date using this format: yyyy-MM-dd'T'HH:mm:ss (ISO 8601 format). For example, 2015-01-01T08:00:00.
Result Syntax
[
'Forecast' => [
'Predictions' => [
'<Statistic>' => [
[
'Timestamp' => '<string>',
'Value' => <float>,
],
// ...
],
// ...
],
],
]
Result Details
Members
- Forecast
-
- Type: Forecast structure
The forecast.
Errors
-
We can't find that resource. Check the information that you've provided and try again.
-
The specified resource is in use.
-
The value is invalid or is too long.
-
The limit on the number of requests per second has been exceeded.
-
The token is not valid. Tokens expire after 24 hours.
QueryWhatIfForecast
$result = $client->queryWhatIfForecast([/* ... */]); $promise = $client->queryWhatIfForecastAsync([/* ... */]);
Retrieves a what-if forecast.
Parameter Syntax
$result = $client->queryWhatIfForecast([
'EndDate' => '<string>',
'Filters' => ['<string>', ...], // REQUIRED
'NextToken' => '<string>',
'StartDate' => '<string>',
'WhatIfForecastArn' => '<string>', // REQUIRED
]);
Parameter Details
Members
- EndDate
-
- Type: string
The end date for the what-if forecast. Specify the date using this format: yyyy-MM-dd'T'HH:mm:ss (ISO 8601 format). For example, 2015-01-01T20:00:00.
- Filters
-
- Required: Yes
- Type: Associative array of custom strings keys (AttributeName) to strings
The filtering criteria to apply when retrieving the forecast. For example, to get the forecast for
client_21in the electricity usage dataset, specify the following:{"item_id" : "client_21"}To get the full what-if forecast, use the CreateForecastExportJob operation.
- NextToken
-
- Type: string
If the result of the previous request was truncated, the response includes a
NextToken. To retrieve the next set of results, use the token in the next request. Tokens expire after 24 hours. - StartDate
-
- Type: string
The start date for the what-if forecast. Specify the date using this format: yyyy-MM-dd'T'HH:mm:ss (ISO 8601 format). For example, 2015-01-01T08:00:00.
- WhatIfForecastArn
-
- Required: Yes
- Type: string
The Amazon Resource Name (ARN) of the what-if forecast to query.
Result Syntax
[
'Forecast' => [
'Predictions' => [
'<Statistic>' => [
[
'Timestamp' => '<string>',
'Value' => <float>,
],
// ...
],
// ...
],
],
]
Result Details
Members
- Forecast
-
- Type: Forecast structure
Provides information about a forecast. Returned as part of the QueryForecast response.
Errors
-
We can't find that resource. Check the information that you've provided and try again.
-
The specified resource is in use.
-
The value is invalid or is too long.
-
The limit on the number of requests per second has been exceeded.
-
The token is not valid. Tokens expire after 24 hours.
Shapes
DataPoint
Forecast
Description
Provides information about a forecast. Returned as part of the QueryForecast response.
Members
- Predictions
-
- Type: Associative array of custom strings keys (Statistic) to DataPoint structuress
The forecast.
The string of the string-to-array map is one of the following values:
-
p10
-
p50
-
p90
The default setting is
["0.1", "0.5", "0.9"]. Use the optionalForecastTypesparameter of the CreateForecast operation to change the values. The values will vary depending on how this is set, with a minimum of1and a maximum of5.
InvalidInputException
InvalidNextTokenException
LimitExceededException
Description
The limit on the number of requests per second has been exceeded.