There are more AWS SDK examples available in the AWS Doc SDK Examples
Use GetRecommendations
with an AWS SDK
The following code examples show how to use GetRecommendations
.
- SDK for Java 2.x
-
Note
There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository
. Get a list of recommended items.
public static void getRecs(PersonalizeRuntimeClient personalizeRuntimeClient, String campaignArn, String userId) { try { GetRecommendationsRequest recommendationsRequest = GetRecommendationsRequest.builder() .campaignArn(campaignArn) .numResults(20) .userId(userId) .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()); } } catch (AwsServiceException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } }
Get a list of recommended items from a recommender created in a domain dataset group.
public static void getRecs(PersonalizeRuntimeClient personalizeRuntimeClient, String recommenderArn, String userId) { try { GetRecommendationsRequest recommendationsRequest = GetRecommendationsRequest.builder() .recommenderArn(recommenderArn) .numResults(20) .userId(userId) .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()); } } catch (AwsServiceException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } }
Use a filter when requesting recommendations.
public static void getFilteredRecs(PersonalizeRuntimeClient personalizeRuntimeClient, String campaignArn, String userId, String filterArn, String parameter1Name, String parameter1Value1, String parameter1Value2, String parameter2Name, String parameter2Value) { try { Map<String, String> filterValues = new HashMap<>(); filterValues.put(parameter1Name, String.format("\"%1$s\",\"%2$s\"", parameter1Value1, parameter1Value2)); filterValues.put(parameter2Name, String.format("\"%1$s\"", parameter2Value)); GetRecommendationsRequest recommendationsRequest = GetRecommendationsRequest.builder() .campaignArn(campaignArn) .numResults(20) .userId(userId) .filterArn(filterArn) .filterValues(filterValues) .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()); } } catch (PersonalizeRuntimeException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } }
-
For API details, see GetRecommendations in AWS SDK for Java 2.x API Reference.
-