Use DetectDominantLanguage with an AWS SDK or CLI - AWS SDK Code Examples

There are more AWS SDK examples available in the AWS Doc SDK Examples GitHub repo.

Use DetectDominantLanguage with an AWS SDK or CLI

The following code examples show how to use DetectDominantLanguage.

Action examples are code excerpts from larger programs and must be run in context. You can see this action in context in the following code example:

.NET
AWS SDK for .NET
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

using System; using System.Threading.Tasks; using Amazon.Comprehend; using Amazon.Comprehend.Model; /// <summary> /// This example calls the Amazon Comprehend service to determine the /// dominant language. /// </summary> public static class DetectDominantLanguage { /// <summary> /// Calls Amazon Comprehend to determine the dominant language used in /// the sample text. /// </summary> public static async Task Main() { string text = "It is raining today in Seattle."; var comprehendClient = new AmazonComprehendClient(Amazon.RegionEndpoint.USWest2); Console.WriteLine("Calling DetectDominantLanguage\n"); var detectDominantLanguageRequest = new DetectDominantLanguageRequest() { Text = text, }; var detectDominantLanguageResponse = await comprehendClient.DetectDominantLanguageAsync(detectDominantLanguageRequest); foreach (var dl in detectDominantLanguageResponse.Languages) { Console.WriteLine($"Language Code: {dl.LanguageCode}, Score: {dl.Score}"); } Console.WriteLine("Done"); } }
CLI
AWS CLI

To detect the dominant language of input text

The following detect-dominant-language analyzes the input text and identifies the dominant language. The pre-trained model's confidence score is also output.

aws comprehend detect-dominant-language \ --text "It is a beautiful day in Seattle."

Output:

{ "Languages": [ { "LanguageCode": "en", "Score": 0.9877256155014038 } ] }

For more information, see Dominant Language in the Amazon Comprehend Developer Guide.

Java
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.

import software.amazon.awssdk.regions.Region; import software.amazon.awssdk.services.comprehend.ComprehendClient; import software.amazon.awssdk.services.comprehend.model.ComprehendException; import software.amazon.awssdk.services.comprehend.model.DetectDominantLanguageRequest; import software.amazon.awssdk.services.comprehend.model.DetectDominantLanguageResponse; import software.amazon.awssdk.services.comprehend.model.DominantLanguage; import java.util.List; /** * Before running this Java V2 code example, set up your development * environment, including your credentials. * * For more information, see the following documentation topic: * * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html */ public class DetectLanguage { public static void main(String[] args) { // Specify French text - "It is raining today in Seattle". String text = "Il pleut aujourd'hui à Seattle"; Region region = Region.US_EAST_1; ComprehendClient comClient = ComprehendClient.builder() .region(region) .build(); System.out.println("Calling DetectDominantLanguage"); detectTheDominantLanguage(comClient, text); comClient.close(); } public static void detectTheDominantLanguage(ComprehendClient comClient, String text) { try { DetectDominantLanguageRequest request = DetectDominantLanguageRequest.builder() .text(text) .build(); DetectDominantLanguageResponse resp = comClient.detectDominantLanguage(request); List<DominantLanguage> allLanList = resp.languages(); for (DominantLanguage lang : allLanList) { System.out.println("Language is " + lang.languageCode()); } } catch (ComprehendException e) { System.err.println(e.awsErrorDetails().errorMessage()); System.exit(1); } } }
Python
SDK for Python (Boto3)
Note

There's more on GitHub. Find the complete example and learn how to set up and run in the AWS Code Examples Repository.

class ComprehendDetect: """Encapsulates Comprehend detection functions.""" def __init__(self, comprehend_client): """ :param comprehend_client: A Boto3 Comprehend client. """ self.comprehend_client = comprehend_client def detect_languages(self, text): """ Detects languages used in a document. :param text: The document to inspect. :return: The list of languages along with their confidence scores. """ try: response = self.comprehend_client.detect_dominant_language(Text=text) languages = response["Languages"] logger.info("Detected %s languages.", len(languages)) except ClientError: logger.exception("Couldn't detect languages.") raise else: return languages