Class: Aws::ForecastQueryService::Client

Inherits:

Seahorse::Client::Base

• Object
• Seahorse::Client::Base
• Aws::ForecastQueryService::Client

Includes:

ClientStubs

Defined in:

lib/aws-sdk-forecastqueryservice/client.rb

Overview

An API client for ForecastQueryService. To construct a client, you need to configure a `:region` and `:credentials`.

client = Aws::ForecastQueryService::Client.new(
  region: region_name,
  credentials: credentials,
  # ...
)

For details on configuring region and credentials see the [developer guide](/sdk-for-ruby/v3/developer-guide/setup-config.html).

See #initialize for a full list of supported configuration options.

Class Attribute Summary

• .identifier ⇒ Object readonly private

API Operations

• #query_forecast(params = {}) ⇒ Types::QueryForecastResponse

  Retrieves a forecast for a single item, filtered by the supplied criteria.

Class Method Summary

• .errors_module ⇒ Object private

Instance Method Summary

• #build_request(operation_name, params = {}) ⇒ Object private
• #initialize(options) ⇒ Client constructor

  A new instance of Client.

• #waiter_names ⇒ Object deprecated private Deprecated.

Constructor Details

#initialize(options) ⇒ Client

Returns a new instance of Client.

Parameters:

• options (Hash)

Options Hash (options):

• :credentials (required, Aws::CredentialProvider) —

  Your AWS credentials. This can be an instance of any one of the following classes:

  • `Aws::Credentials` - Used for configuring static, non-refreshing credentials.

  • `Aws::SharedCredentials` - Used for loading static credentials from a shared file, such as `~/.aws/config`.

  • `Aws::AssumeRoleCredentials` - Used when you need to assume a role.

  • `Aws::AssumeRoleWebIdentityCredentials` - Used when you need to assume a role after providing credentials via the web.

  • `Aws::SSOCredentials` - Used for loading credentials from AWS SSO using an access token generated from `aws login`.

  • `Aws::ProcessCredentials` - Used for loading credentials from a process that outputs to stdout.

  • `Aws::InstanceProfileCredentials` - Used for loading credentials from an EC2 IMDS on an EC2 instance.

  • `Aws::ECSCredentials` - Used for loading credentials from instances running in ECS.

  • `Aws::CognitoIdentityCredentials` - Used for loading credentials from the Cognito Identity service.

  When `:credentials` are not configured directly, the following locations will be searched for credentials:

  • `Aws.config`

  • The `:access_key_id`, `:secret_access_key`, and `:session_token` options.

  • ENV, ENV

  • `~/.aws/credentials`

  • `~/.aws/config`

  • EC2/ECS IMDS instance profile - When used by default, the timeouts are very aggressive. Construct and pass an instance of `Aws::InstanceProfileCredentails` or `Aws::ECSCredentials` to enable retries and extended timeouts. Instance profile credential fetching can be disabled by setting ENV to true.

• :region (required, String) —

  The AWS region to connect to. The configured `:region` is used to determine the service `:endpoint`. When not passed, a default `:region` is searched for in the following locations:

  • `Aws.config`

  • `ENV`

  • `ENV`

  • `ENV`

  • `~/.aws/credentials`

  • `~/.aws/config`

• :access_key_id (String)
• :active_endpoint_cache (Boolean) — default: false —

  When set to `true`, a thread polling for endpoints will be running in the background every 60 secs (default). Defaults to `false`.

• :adaptive_retry_wait_to_fill (Boolean) — default: true —

  Used only in `adaptive` retry mode. When true, the request will sleep until there is sufficent client side capacity to retry the request. When false, the request will raise a `RetryCapacityNotAvailableError` and will not retry instead of sleeping.

• :client_side_monitoring (Boolean) — default: false —

  When `true`, client-side metrics will be collected for all API requests from this client.

• :client_side_monitoring_client_id (String) — default: "" —

  Allows you to provide an identifier for this client which will be attached to all generated client side metrics. Defaults to an empty string.

• :client_side_monitoring_host (String) — default: "127.0.0.1" —

  Allows you to specify the DNS hostname or IPv4 or IPv6 address that the client side monitoring agent is running on, where client metrics will be published via UDP.

• :client_side_monitoring_port (Integer) — default: 31000 —

  Required for publishing client metrics. The port that the client side monitoring agent is running on, where client metrics will be published via UDP.

• :client_side_monitoring_publisher (Aws::ClientSideMonitoring::Publisher) — default: Aws::ClientSideMonitoring::Publisher —

  Allows you to provide a custom client-side monitoring publisher class. By default, will use the Client Side Monitoring Agent Publisher.

• :convert_params (Boolean) — default: true —

  When `true`, an attempt is made to coerce request parameters into the required types.

• :correct_clock_skew (Boolean) — default: true —

  Used only in `standard` and adaptive retry modes. Specifies whether to apply a clock skew correction and retry requests with skewed client clocks.

• :defaults_mode (String) — default: "legacy" —

  See DefaultsModeConfiguration for a list of the accepted modes and the configuration defaults that are included.

• :disable_host_prefix_injection (Boolean) — default: false —

  Set to true to disable SDK automatically adding host prefix to default service endpoint when available.

• :endpoint (String) —

  The client endpoint is normally constructed from the `:region` option. You should only configure an `:endpoint` when connecting to test or custom endpoints. This should be a valid HTTP(S) URI.

• :endpoint_cache_max_entries (Integer) — default: 1000 —

  Used for the maximum size limit of the LRU cache storing endpoints data for endpoint discovery enabled operations. Defaults to 1000.

• :endpoint_cache_max_threads (Integer) — default: 10 —

  Used for the maximum threads in use for polling endpoints to be cached, defaults to 10.

• :endpoint_cache_poll_interval (Integer) — default: 60 —

  When :endpoint_discovery and :active_endpoint_cache is enabled, Use this option to config the time interval in seconds for making requests fetching endpoints information. Defaults to 60 sec.

• :endpoint_discovery (Boolean) — default: false —

  When set to `true`, endpoint discovery will be enabled for operations when available.

• :log_formatter (Aws::Log::Formatter) — default: Aws::Log::Formatter.default —

  The log formatter.

• :log_level (Symbol) — default: :info —

  The log level to send messages to the `:logger` at.

• :logger (Logger) —

  The Logger instance to send log messages to. If this option is not set, logging will be disabled.

• :max_attempts (Integer) — default: 3 —

  An integer representing the maximum number attempts that will be made for a single request, including the initial attempt. For example, setting this value to 5 will result in a request being retried up to 4 times. Used in `standard` and `adaptive` retry modes.

• :profile (String) — default: "default" —

  Used when loading credentials from the shared credentials file at HOME/.aws/credentials. When not specified, 'default' is used.

• :retry_backoff (Proc) —

  A proc or lambda used for backoff. Defaults to 2**retries * retry_base_delay. This option is only used in the `legacy` retry mode.

• :retry_base_delay (Float) — default: 0.3 —

  The base delay in seconds used by the default backoff function. This option is only used in the `legacy` retry mode.

• :retry_jitter (Symbol) — default: :none —

  A delay randomiser function used by the default backoff function. Some predefined functions can be referenced by name - :none, :equal, :full, otherwise a Proc that takes and returns a number. This option is only used in the `legacy` retry mode.

  @see www.awsarchitectureblog.com/2015/03/backoff.html

• :retry_limit (Integer) — default: 3 —

  The maximum number of times to retry failed requests. Only ~ 500 level server errors and certain ~ 400 level client errors are retried. Generally, these are throttling errors, data checksum errors, networking errors, timeout errors, auth errors, endpoint discovery, and errors from expired credentials. This option is only used in the `legacy` retry mode.

• :retry_max_delay (Integer) — default: 0 —

  The maximum number of seconds to delay between retries (0 for no limit) used by the default backoff function. This option is only used in the `legacy` retry mode.

• :retry_mode (String) — default: "legacy" —

  Specifies which retry algorithm to use. Values are:

  • `legacy` - The pre-existing retry behavior. This is default value if no retry mode is provided.

  • `standard` - A standardized set of retry rules across the AWS SDKs. This includes support for retry quotas, which limit the number of unsuccessful retries a client can make.

  • `adaptive` - An experimental retry mode that includes all the functionality of `standard` mode along with automatic client side throttling. This is a provisional mode that may change behavior in the future.

• :secret_access_key (String)
• :session_token (String)
• :simple_json (Boolean) — default: false —

  Disables request parameter conversion, validation, and formatting. Also disable response data type conversions. This option is useful when you want to ensure the highest level of performance by avoiding overhead of walking request parameters and response data structures.

  When `:simple_json` is enabled, the request parameters hash must be formatted exactly as the DynamoDB API expects.

• :stub_responses (Boolean) — default: false —

  Causes the client to return stubbed responses. By default fake responses are generated and returned. You can specify the response data to return or errors to raise by calling ClientStubs#stub_responses. See ClientStubs for more information.

  ** Please note ** When response stubbing is enabled, no HTTP requests are made, and retries are disabled.

• :use_dualstack_endpoint (Boolean) —

  When set to `true`, dualstack enabled endpoints (with `.aws` TLD) will be used if available.

• :use_fips_endpoint (Boolean) —

  When set to `true`, fips compatible endpoints will be used if available. When a `fips` region is used, the region is normalized and this config is set to `true`.

• :validate_params (Boolean) — default: true —

  When `true`, request parameters are validated before sending the request.

• :http_proxy (URI::HTTP, String) —

  A proxy to send requests through. Formatted like 'proxy.com:123'.

• :http_open_timeout (Float) — default: 15 —

  The number of seconds to wait when opening a HTTP session before raising a `Timeout::Error`.

• :http_read_timeout (Float) — default: 60 —

  The default number of seconds to wait for response data. This value can safely be set per-request on the session.

• :http_idle_timeout (Float) — default: 5 —

  The number of seconds a connection is allowed to sit idle before it is considered stale. Stale connections are closed and removed from the pool before making a request.

• :http_continue_timeout (Float) — default: 1 —

  The number of seconds to wait for a 100-continue response before sending the request body. This option has no effect unless the request has “Expect” header set to “100-continue”. Defaults to `nil` which disables this behaviour. This value can safely be set per request on the session.

• :ssl_timeout (Float) — default: nil —

  Sets the SSL timeout in seconds.

• :http_wire_trace (Boolean) — default: false —

  When `true`, HTTP debug output will be sent to the `:logger`.

• :ssl_verify_peer (Boolean) — default: true —

  When `true`, SSL peer certificates are verified when establishing a connection.

• :ssl_ca_bundle (String) —

  Full path to the SSL certificate authority bundle file that should be used when verifying peer certificates. If you do not pass `:ssl_ca_bundle` or `:ssl_ca_directory` the the system default will be used if available.

• :ssl_ca_directory (String) —

  Full path of the directory that contains the unbundled SSL certificate authority files for verifying peer certificates. If you do not pass `:ssl_ca_bundle` or `:ssl_ca_directory` the the system default will be used if available.

# File 'lib/aws-sdk-forecastqueryservice/client.rb', line 356

def initialize(*args)
  super
end

Class Attribute Details

.identifier ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

# File 'lib/aws-sdk-forecastqueryservice/client.rb', line 475

def identifier
  @identifier
end

Class Method Details

.errors_module ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

# File 'lib/aws-sdk-forecastqueryservice/client.rb', line 478

def errors_module
  Errors
end

Instance Method Details

#build_request(operation_name, params = {}) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Parameters:

• params ({}) (defaults to: {})

# File 'lib/aws-sdk-forecastqueryservice/client.rb', line 453

def build_request(operation_name, params = {})
  handlers = @handlers.for(operation_name)
  context = Seahorse::Client::RequestContext.new(
    operation_name: operation_name,
    operation: config.api.operation(operation_name),
    client: self,
    params: params,
    config: config)
  context[:gem_name] = 'aws-sdk-forecastqueryservice'
  context[:gem_version] = '1.20.0'
  Seahorse::Client::Request.new(handlers, context)
end

#query_forecast(params = {}) ⇒ Types::QueryForecastResponse

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.

<note markdown=“1”> The forecasts generated by Amazon Forecast are in the same timezone as the dataset that was used to create the predictor.

</note>

[1]: docs.aws.amazon.com/en_us/forecast/latest/dg/API_CreateForecastExportJob.html

Examples:

Request syntax with placeholder values

resp = client.query_forecast({
  forecast_arn: "Arn", # required
  start_date: "DateTime",
  end_date: "DateTime",
  filters: { # required
    "AttributeName" => "AttributeValue",
  },
  next_token: "NextToken",
})

Response structure

resp.forecast.predictions #=> Hash
resp.forecast.predictions["Statistic"] #=> Array
resp.forecast.predictions["Statistic"][0].timestamp #=> String
resp.forecast.predictions["Statistic"][0].value #=> Float

Parameters:

• params (Hash) (defaults to: {}) —

  ({})

Options Hash (params):

• :forecast_arn (required, String) —

  The Amazon Resource Name (ARN) of the forecast to query.

• :start_date (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.

• :end_date (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, Hash<String,String>) —

  The filtering criteria to apply when retrieving the forecast. For example, to get the forecast for `client_21` in the electricity usage dataset, specify the following:

  `: “client_21”`

  To get the full forecast, use the [CreateForecastExportJob] operation.

  [1]: docs.aws.amazon.com/en_us/forecast/latest/dg/API_CreateForecastExportJob.html

• :next_token (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.

Returns:

• (Types::QueryForecastResponse) —

  Returns a response object which responds to the following methods:

  • #forecast => Types::Forecast

See Also:

• AWS API Documentation

# File 'lib/aws-sdk-forecastqueryservice/client.rb', line 444

def query_forecast(params = {}, options = {})
  req = build_request(:query_forecast, params)
  req.send_request(options)
end

#waiter_names ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Deprecated.

# File 'lib/aws-sdk-forecastqueryservice/client.rb', line 468

def waiter_names
  []
end