リアルタイムレコメンデーション内のアイテムのプロモーション

import boto3

personalizeRt = boto3.client('personalize-runtime')

response = personalizeRt.get_recommendations(
  campaignArn = "CampaignARN",
  userId = '1',
  numResults = 10,
  filterArn = 'RequestFilterARN',
  filterValues = {
      "RequestFilterParameterName": "\"value1\"",
      "RequestFilterParameterName": "\"value1\",\"value2\",\"value3\""
      ....
  },
  promotions = [{
    "name" : "promotionName",
    "percentPromotedItems" : 50,
    "filterArn": "promotionFilterARN",
    "filterValues": {
      "PromotionParameterName": "\"Value1\",\"Value2\""
      ...
    } 
  }]
)

print("Recommended items")
for item in response['itemList']:
    print (item['itemId'])
    if ("promotionName" in item):
        print(item['promotionName'])

public static void getRecommendationsWithPromotedItems(PersonalizeRuntimeClient personalizeRuntimeClient,
                                       String campaignArn,
                                       String userId,
                                       String requestFilterArn,
                                       String requestParameterName,
                                       String requestParameterValue1,
                                       String requestParameterValue2,
                                       String promotionName,
                                       int percentPromotedItems,
                                       String promotionFilterArn,
                                       String promotionParameterName,
                                       String promotionParameterValue1,
                                       String promotionParameterValue2) {

  try {
        
      Map<String, String> promotionFilterValues = new HashMap<>();

      promotionFilterValues.put(promotionParameterName, String.format("\"%1$s\",\"%2$s\"",
              promotionParameterValue1, promotionParameterValue2));
              
      Promotion newPromotion = Promotion.builder()
              .name(promotionName)
              .percentPromotedItems(percentPromotedItems)
              .filterArn(promotionFilterArn)
              .filterValues(promotionFilterValues)
              .build();
              
      List<Promotion> promotionList = new List<>();
      
      promotionList.add(newPromotion);
      
      Map<String, String> requestfilterValues = new HashMap<>();

      requestfilterValues.put(requestParameterName, String.format("\"%1$s\",\"%2$s\"",
              requestParameterValue1, requestParameterValue2));
              
      GetRecommendationsRequest recommendationsRequest = GetRecommendationsRequest.builder()
              .campaignArn(campaignArn)
              .numResults(20)
              .userId(userId)
              .filterArn(requestFilterArn)
              .fitlerValues(requestFilterValues)
              .promotions(promotionList)
              .build();

      GetRecommendationsResponse recommendationsResponse = personalizeRuntimeClient.getRecommendations(recommendationsRequest);
      List<PredictedItem> items = recommendationsResponse.itemList();

      for (PredictedItem item: items) {
          System.out.println("Item Id is : "+item.itemId());
          System.out.println("Item score is : "+item.score());
          System.out.println("Promotion name is : "+item.promotionName());
      }
  } catch (PersonalizeRuntimeException e) {
      System.err.println(e.awsErrorDetails().errorMessage());
      System.exit(1);
  }
}

// Get service clients and commands using ES6 syntax.
import { GetRecommendationsCommand, PersonalizeRuntimeClient } from
  "@aws-sdk/client-personalize-runtime";

// create personalizeRuntimeClient.
const personalizeRuntimeClient = new PersonalizeRuntimeClient({
  region: "REGION",
});

// set recommendation request param
export const getRecommendationsParam = {
  campaignArn: "CAMPAIGN_ARN",  /* required */
  userId: "USER_ID", /* required */
  numResults: 25, /* optional */
  filterArn: "FILTER_ARN", /* provide if you are applying a custom filter */
  filterValues: {
    "PARAM_NAME": "\"PARAM_VALUE\"" /* provide if your filter has a placeholder parameter */
  },
  promotions: [
    {
      name: "PROMOTION_NAME", /* specify the name of the promotion. The recommendation response includes the name to identify promoted items. */
      percentPromotedItems: 50, /* the percentage of recommended items to apply the promotion to. */
      filterArn:
        "PROMOTION_FILTER_ARN", /* the Amazon Resource Name (ARN) of the filter that defines the promotion criteria. */
      filterValues: {
        "PARAM_NAME": "\"PARAM_VALUE\"" /* provide if your promotion filter has a placeholder parameter */
      },
    },
  ],
};

export const run = async () => {
  try {
    const response = await personalizeRuntimeClient.send(new GetRecommendationsCommand(getRecommendationsParam));
    console.log("Success!", "\nItems are: ");
    response.itemList.forEach(element => console.log(element.itemId))
    return response; // For unit tests.
  } catch (err) {
    console.log("Error", err);
  }
};
run();