Class: Aws::PersonalizeRuntime::Client

Inherits:

Seahorse::Client::Base

• Object
• Seahorse::Client::Base
• Aws::PersonalizeRuntime::Client

Includes:

ClientStubs

Defined in:

gems/aws-sdk-personalizeruntime/lib/aws-sdk-personalizeruntime/client.rb

Overview

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

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

For details on configuring region and credentials see the developer guide.

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

Instance Attribute Summary

Attributes inherited from Seahorse::Client::Base

#config, #handlers

API Operations

• #get_action_recommendations(params = {}) ⇒ Types::GetActionRecommendationsResponse

  Returns a list of recommended actions in sorted in descending order by prediction score.

• #get_personalized_ranking(params = {}) ⇒ Types::GetPersonalizedRankingResponse

  Re-ranks a list of recommended items for the given user.

• #get_recommendations(params = {}) ⇒ Types::GetRecommendationsResponse

  Returns a list of recommended items.

Instance Method Summary

• #initialize(options) ⇒ Client constructor

  A new instance of Client.

Methods included from ClientStubs

#api_requests, #stub_data, #stub_responses

Methods inherited from Seahorse::Client::Base

add_plugin, api, clear_plugins, define, new, #operation_names, plugins, remove_plugin, set_api, set_plugins

Methods included from Seahorse::Client::HandlerBuilder

#handle, #handle_request, #handle_response

Constructor Details

#initialize(options) ⇒ Client

Returns a new instance of Client.

Parameters:

• options (Hash)

Options Hash (options):

• :plugins (Array<Seahorse::Client::Plugin>) — default: []] —

  A list of plugins to apply to the client. Each plugin is either a class name or an instance of a plugin class.

• :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[:credentials]
  • The :access_key_id, :secret_access_key, :session_token, and :account_id options.
  • ENV['AWS_ACCESS_KEY_ID'], ENV['AWS_SECRET_ACCESS_KEY'], ENV['AWS_SESSION_TOKEN'], and ENV['AWS_ACCOUNT_ID']
  • ~/.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::InstanceProfileCredentials or Aws::ECSCredentials to enable retries and extended timeouts. Instance profile credential fetching can be disabled by setting ENV['AWS_EC2_METADATA_DISABLED'] 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[:region]
  • ENV['AWS_REGION']
  • ENV['AMAZON_REGION']
  • ENV['AWS_DEFAULT_REGION']
  • ~/.aws/credentials
  • ~/.aws/config
• :access_key_id (String)
• :account_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.

• :disable_request_compression (Boolean) — default: false —

  When set to 'true' the request body will not be compressed for supported operations.

• :endpoint (String, URI::HTTPS, URI::HTTP) —

  Normally you should not configure the :endpoint option directly. This is normally constructed from the :region option. Configuring :endpoint is normally reserved for connecting to test or custom endpoints. The endpoint should be a URI formatted like:

  'http://example.com'
  'https://example.com'
  'http://example.com:123'
  

• :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.

• :ignore_configured_endpoint_urls (Boolean) —

  Setting to true disables use of endpoint URLs provided via environment variables and the shared configuration file.

• :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.

• :request_min_compression_size_bytes (Integer) — default: 10240 —

  The minimum size in bytes that triggers compression for request bodies. The value must be non-negative integer value between 0 and 10485780 bytes inclusive.

• :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 https://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.

• :sdk_ua_app_id (String) —

  A unique and opaque application ID that is appended to the User-Agent header as app/sdk_ua_app_id. It should have a maximum length of 50. This variable is sourced from environment variable AWS_SDK_UA_APP_ID or the shared config profile attribute sdk_ua_app_id.

• :secret_access_key (String)
• :session_token (String)
• :sigv4a_signing_region_set (Array) —

  A list of regions that should be signed with SigV4a signing. When not passed, a default :sigv4a_signing_region_set is searched for in the following locations:

  • Aws.config[:sigv4a_signing_region_set]
  • ENV['AWS_SIGV4A_SIGNING_REGION_SET']
  • ~/.aws/config
• :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.

• :telemetry_provider (Aws::Telemetry::TelemetryProviderBase) — default: Aws::Telemetry::NoOpTelemetryProvider —

  Allows you to provide a telemetry provider, which is used to emit telemetry data. By default, uses NoOpTelemetryProvider which will not record or emit any telemetry data. The SDK supports the following telemetry providers:

  • OpenTelemetry (OTel) - To use the OTel provider, install and require the opentelemetry-sdk gem and then, pass in an instance of a Aws::Telemetry::OTelProvider for telemetry provider.
• :token_provider (Aws::TokenProvider) —

  A Bearer Token Provider. This can be an instance of any one of the following classes:

  • Aws::StaticTokenProvider - Used for configuring static, non-refreshing tokens.

  • Aws::SSOTokenProvider - Used for loading tokens from AWS SSO using an access token generated from aws login.

  When :token_provider is not configured directly, the Aws::TokenProviderChain will be used to search for tokens configured for your profile in shared configuration files.

• :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.

• :endpoint_provider (Aws::PersonalizeRuntime::EndpointProvider) —

  The endpoint provider used to resolve endpoints. Any object that responds to #resolve_endpoint(parameters) where parameters is a Struct similar to Aws::PersonalizeRuntime::EndpointParameters.

• :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.

• :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_open_timeout (Float) — default: 15 —

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

• :http_proxy (URI::HTTP, String) —

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

• :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_wire_trace (Boolean) — default: false —

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

• :on_chunk_received (Proc) —

  When a Proc object is provided, it will be used as callback when each chunk of the response body is received. It provides three arguments: the chunk, the number of bytes received, and the total number of bytes in the response (or nil if the server did not send a content-length).

• :on_chunk_sent (Proc) —

  When a Proc object is provided, it will be used as callback when each chunk of the request body is sent. It provides three arguments: the chunk, the number of bytes read from the body, and the total number of bytes in the body.

• :raise_response_errors (Boolean) — default: true —

  When true, response errors are raised.

• :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.

• :ssl_ca_store (String) —

  Sets the X509::Store to verify peer certificate.

• :ssl_cert (OpenSSL::X509::Certificate) —

  Sets a client certificate when creating http connections.

• :ssl_key (OpenSSL::PKey) —

  Sets a client key when creating http connections.

• :ssl_timeout (Float) —

  Sets the SSL timeout in seconds

• :ssl_verify_peer (Boolean) — default: true —

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

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

def initialize(*args)
  super
end

Instance Method Details

#get_action_recommendations(params = {}) ⇒ Types::GetActionRecommendationsResponse

Returns a list of recommended actions in sorted in descending order by prediction score. Use the GetActionRecommendations API if you have a custom campaign that deploys a solution version trained with a PERSONALIZED_ACTIONS recipe.

For more information about PERSONALIZED_ACTIONS recipes, see PERSONALIZED_ACTIONS recipes. For more information about getting action recommendations, see Getting action recommendations.

Examples:

Request syntax with placeholder values

resp = client.get_action_recommendations({
  campaign_arn: "Arn",
  user_id: "UserID",
  num_results: 1,
  filter_arn: "Arn",
  filter_values: {
    "FilterAttributeName" => "FilterAttributeValue",
  },
})

Response structure

resp.action_list #=> Array
resp.action_list[0].action_id #=> String
resp.action_list[0].score #=> Float
resp.recommendation_id #=> String

Parameters:

• params (Hash) (defaults to: {}) —

  ({})

Options Hash (params):

• :campaign_arn (String) —

  The Amazon Resource Name (ARN) of the campaign to use for getting action recommendations. This campaign must deploy a solution version trained with a PERSONALIZED_ACTIONS recipe.

• :user_id (String) —

  The user ID of the user to provide action recommendations for.

• :num_results (Integer) —

  The number of results to return. The default is 5. The maximum is 100.

• :filter_arn (String) —

  The ARN of the filter to apply to the returned recommendations. For more information, see Filtering Recommendations.

  When using this parameter, be sure the filter resource is ACTIVE.

• :filter_values (Hash<String,String>) —

  The values to use when filtering recommendations. For each placeholder parameter in your filter expression, provide the parameter name (in matching case) as a key and the filter value(s) as the corresponding value. Separate multiple values for one parameter with a comma.

  For filter expressions that use an INCLUDE element to include actions, you must provide values for all parameters that are defined in the expression. For filters with expressions that use an EXCLUDE element to exclude actions, you can omit the filter-values. In this case, Amazon Personalize doesn't use that portion of the expression to filter recommendations.

  For more information, see Filtering recommendations and user segments.

Returns:

• (Types::GetActionRecommendationsResponse) —

  Returns a response object which responds to the following methods:

  • #action_list => Array<Types::PredictedAction>
  • #recommendation_id => String

See Also:

• AWS API Documentation

# File 'gems/aws-sdk-personalizeruntime/lib/aws-sdk-personalizeruntime/client.rb', line 533

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

#get_personalized_ranking(params = {}) ⇒ Types::GetPersonalizedRankingResponse

Re-ranks a list of recommended items for the given user. The first item in the list is deemed the most likely item to be of interest to the user.

The solution backing the campaign must have been created using a recipe of type PERSONALIZED_RANKING.

Examples:

Request syntax with placeholder values

resp = client.get_personalized_ranking({
  campaign_arn: "Arn", # required
  input_list: ["ItemID"], # required
  user_id: "UserID", # required
  context: {
    "AttributeName" => "AttributeValue",
  },
  filter_arn: "Arn",
  filter_values: {
    "FilterAttributeName" => "FilterAttributeValue",
  },
  metadata_columns: {
    "DatasetType" => ["ColumnName"],
  },
})

Response structure

resp.personalized_ranking #=> Array
resp.personalized_ranking[0].item_id #=> String
resp.personalized_ranking[0].score #=> Float
resp.personalized_ranking[0].promotion_name #=> String
resp.personalized_ranking[0].metadata #=> Hash
resp.personalized_ranking[0].metadata["ColumnName"] #=> String
resp.personalized_ranking[0].reason #=> Array
resp.personalized_ranking[0].reason[0] #=> String
resp.recommendation_id #=> String

Parameters:

• params (Hash) (defaults to: {}) —

  ({})

Options Hash (params):

• :campaign_arn (required, String) —

  The Amazon Resource Name (ARN) of the campaign to use for generating the personalized ranking.

• :input_list (required, Array<String>) —

  A list of items (by itemId) to rank. If an item was not included in the training dataset, the item is appended to the end of the reranked list. If you are including metadata in recommendations, the maximum is 50. Otherwise, the maximum is 500.

• :user_id (required, String) —

  The user for which you want the campaign to provide a personalized ranking.

• :context (Hash<String,String>) —

  The contextual metadata to use when getting recommendations. Contextual metadata includes any interaction information that might be relevant when getting a user's recommendations, such as the user's current location or device type.

• :filter_arn (String) —

  The Amazon Resource Name (ARN) of a filter you created to include items or exclude items from recommendations for a given user. For more information, see Filtering Recommendations.

• :filter_values (Hash<String,String>) —

  The values to use when filtering recommendations. For each placeholder parameter in your filter expression, provide the parameter name (in matching case) as a key and the filter value(s) as the corresponding value. Separate multiple values for one parameter with a comma.

  For filter expressions that use an INCLUDE element to include items, you must provide values for all parameters that are defined in the expression. For filters with expressions that use an EXCLUDE element to exclude items, you can omit the filter-values.In this case, Amazon Personalize doesn't use that portion of the expression to filter recommendations.

  For more information, see Filtering Recommendations.

• :metadata_columns (Hash<String,Array>) —

  If you enabled metadata in recommendations when you created or updated the campaign, specify metadata columns from your Items dataset to include in the personalized ranking. The map key is ITEMS and the value is a list of column names from your Items dataset. The maximum number of columns you can provide is 10.

  For information about enabling metadata for a campaign, see Enabling metadata in recommendations for a campaign.

Returns:

• (Types::GetPersonalizedRankingResponse) —

  Returns a response object which responds to the following methods:

  • #personalized_ranking => Array<Types::PredictedItem>
  • #recommendation_id => String

See Also:

• AWS API Documentation

# File 'gems/aws-sdk-personalizeruntime/lib/aws-sdk-personalizeruntime/client.rb', line 648

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

#get_recommendations(params = {}) ⇒ Types::GetRecommendationsResponse

Returns a list of recommended items. For campaigns, the campaign's Amazon Resource Name (ARN) is required and the required user and item input depends on the recipe type used to create the solution backing the campaign as follows:

• USER_PERSONALIZATION - userId required, itemId not used

• RELATED_ITEMS - itemId required, userId not used

Campaigns that are backed by a solution created using a recipe of type PERSONALIZED_RANKING use the API.

For recommenders, the recommender's ARN is required and the required item and user input depends on the use case (domain-based recipe) backing the recommender. For information on use case requirements see Choosing recommender use cases.

Examples:

Request syntax with placeholder values

resp = client.get_recommendations({
  campaign_arn: "Arn",
  item_id: "ItemID",
  user_id: "UserID",
  num_results: 1,
  context: {
    "AttributeName" => "AttributeValue",
  },
  filter_arn: "Arn",
  filter_values: {
    "FilterAttributeName" => "FilterAttributeValue",
  },
  recommender_arn: "Arn",
  promotions: [
    {
      name: "Name",
      percent_promoted_items: 1,
      filter_arn: "Arn",
      filter_values: {
        "FilterAttributeName" => "FilterAttributeValue",
      },
    },
  ],
  metadata_columns: {
    "DatasetType" => ["ColumnName"],
  },
})

Response structure

resp.item_list #=> Array
resp.item_list[0].item_id #=> String
resp.item_list[0].score #=> Float
resp.item_list[0].promotion_name #=> String
resp.item_list[0].metadata #=> Hash
resp.item_list[0].metadata["ColumnName"] #=> String
resp.item_list[0].reason #=> Array
resp.item_list[0].reason[0] #=> String
resp.recommendation_id #=> String

Parameters:

• params (Hash) (defaults to: {}) —

  ({})

Options Hash (params):

• :campaign_arn (String) —

  The Amazon Resource Name (ARN) of the campaign to use for getting recommendations.

• :item_id (String) —

  The item ID to provide recommendations for.

  Required for RELATED_ITEMS recipe type.

• :user_id (String) —

  The user ID to provide recommendations for.

  Required for USER_PERSONALIZATION recipe type.

• :num_results (Integer) —

  The number of results to return. The default is 25. If you are including metadata in recommendations, the maximum is 50. Otherwise, the maximum is 500.

• :context (Hash<String,String>) —

  The contextual metadata to use when getting recommendations. Contextual metadata includes any interaction information that might be relevant when getting a user's recommendations, such as the user's current location or device type.

• :filter_arn (String) —

  The ARN of the filter to apply to the returned recommendations. For more information, see Filtering Recommendations.

  When using this parameter, be sure the filter resource is ACTIVE.

• :filter_values (Hash<String,String>) —

  The values to use when filtering recommendations. For each placeholder parameter in your filter expression, provide the parameter name (in matching case) as a key and the filter value(s) as the corresponding value. Separate multiple values for one parameter with a comma.

  For filter expressions that use an INCLUDE element to include items, you must provide values for all parameters that are defined in the expression. For filters with expressions that use an EXCLUDE element to exclude items, you can omit the filter-values.In this case, Amazon Personalize doesn't use that portion of the expression to filter recommendations.

  For more information, see Filtering recommendations and user segments.

• :recommender_arn (String) —

  The Amazon Resource Name (ARN) of the recommender to use to get recommendations. Provide a recommender ARN if you created a Domain dataset group with a recommender for a domain use case.

• :promotions (Array<Types::Promotion>) —

  The promotions to apply to the recommendation request. A promotion defines additional business rules that apply to a configurable subset of recommended items.

• :metadata_columns (Hash<String,Array>) —

  If you enabled metadata in recommendations when you created or updated the campaign or recommender, specify the metadata columns from your Items dataset to include in item recommendations. The map key is ITEMS and the value is a list of column names from your Items dataset. The maximum number of columns you can provide is 10.

  For information about enabling metadata for a campaign, see Enabling metadata in recommendations for a campaign. For information about enabling metadata for a recommender, see Enabling metadata in recommendations for a recommender.

Returns:

• (Types::GetRecommendationsResponse) —

  Returns a response object which responds to the following methods:

  • #item_list => Array<Types::PredictedItem>
  • #recommendation_id => String

See Also:

• AWS API Documentation

# File 'gems/aws-sdk-personalizeruntime/lib/aws-sdk-personalizeruntime/client.rb', line 809

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