Use ListLexicons with an AWS SDK or CLI

    using System;
    using System.Threading.Tasks;
    using Amazon.Polly;
    using Amazon.Polly.Model;

    /// <summary>
    /// Lists the Amazon Polly lexicons that have been defined. By default,
    /// lists the lexicons that are defined in the same AWS Region as the default
    /// user. To view Amazon Polly lexicons that are defined in a different AWS
    /// Region, supply it as a parameter to the Amazon Polly constructor.
    /// </summary>
    public class ListLexicons
    {
        public static async Task Main()
        {
            var client = new AmazonPollyClient();
            var request = new ListLexiconsRequest();

            try
            {
                Console.WriteLine("All voices: ");

                do
                {
                    var response = await client.ListLexiconsAsync(request);
                    request.NextToken = response.NextToken;

                    response.Lexicons.ForEach(lexicon =>
                    {
                        var attributes = lexicon.Attributes;
                        Console.WriteLine($"Name: {lexicon.Name}");
                        Console.WriteLine($"\tAlphabet: {attributes.Alphabet}");
                        Console.WriteLine($"\tLanguageCode: {attributes.LanguageCode}");
                        Console.WriteLine($"\tLastModified: {attributes.LastModified}");
                        Console.WriteLine($"\tLexemesCount: {attributes.LexemesCount}");
                        Console.WriteLine($"\tLexiconArn: {attributes.LexiconArn}");
                        Console.WriteLine($"\tSize: {attributes.Size}");
                    });
                }
                while (request.NextToken is not null);
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Error: {ex.Message}");
            }
        }
    }

To list your lexicons

The following list-lexicons example lists your pronunciation lexicons.

aws polly list-lexicons

Output:

{
    "Lexicons": [
        {
            "Name": "w3c",
            "Attributes": {
                "Alphabet": "ipa",
                "LanguageCode": "en-US",
                "LastModified": 1603908910.99,
                "LexiconArn": "arn:aws:polly:us-east-2:123456789012:lexicon/w3c",
                "LexemesCount": 1,
                "Size": 492
            }
        }
    ]
}

For more information, see Using the ListLexicons operation in the Amazon Polly Developer Guide.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.polly.PollyClient;
import software.amazon.awssdk.services.polly.model.ListLexiconsResponse;
import software.amazon.awssdk.services.polly.model.ListLexiconsRequest;
import software.amazon.awssdk.services.polly.model.LexiconDescription;
import software.amazon.awssdk.services.polly.model.PollyException;
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 ListLexicons {
    public static void main(String args[]) {
        PollyClient polly = PollyClient.builder()
                .region(Region.US_WEST_2)
                .build();

        listLexicons(polly);
        polly.close();
    }

    public static void listLexicons(PollyClient client) {
        try {
            ListLexiconsRequest listLexiconsRequest = ListLexiconsRequest.builder()
                    .build();

            ListLexiconsResponse listLexiconsResult = client.listLexicons(listLexiconsRequest);
            List<LexiconDescription> lexiconDescription = listLexiconsResult.lexicons();
            for (LexiconDescription lexDescription : lexiconDescription) {
                System.out.println("The name of the Lexicon is " + lexDescription.name());
            }

        } catch (PollyException e) {
            System.err.println("Exception caught: " + e);
            System.exit(1);
        }
    }
}

class PollyWrapper:
    """Encapsulates Amazon Polly functions."""

    def __init__(self, polly_client, s3_resource):
        """
        :param polly_client: A Boto3 Amazon Polly client.
        :param s3_resource: A Boto3 Amazon Simple Storage Service (Amazon S3) resource.
        """
        self.polly_client = polly_client
        self.s3_resource = s3_resource
        self.voice_metadata = None


    def list_lexicons(self):
        """
        Lists lexicons in the current account.

        :return: The list of lexicons.
        """
        try:
            response = self.polly_client.list_lexicons()
            lexicons = response["Lexicons"]
            logger.info("Got %s lexicons.", len(lexicons))
        except ClientError:
            logger.exception(
                "Couldn't get  %s.",
            )
            raise
        else:
            return lexicons

require 'aws-sdk-polly' # In v2: require 'aws-sdk'

begin
  # Create an Amazon Polly client using
  # credentials from the shared credentials file ~/.aws/credentials
  # and the configuration (region) from the shared configuration file ~/.aws/config
  polly = Aws::Polly::Client.new

  resp = polly.list_lexicons

  resp.lexicons.each do |l|
    puts l.name
    puts "  Alphabet:#{l.attributes.alphabet}"
    puts "  Language:#{l.attributes.language}"
    puts
  end
rescue StandardError => e
  puts 'Could not get lexicons'
  puts 'Error message:'
  puts e.message
end

async fn show_lexicons(client: &Client) -> Result<(), Error> {
    let resp = client.list_lexicons().send().await?;

    println!("Lexicons:");

    let lexicons = resp.lexicons();

    for lexicon in lexicons {
        println!("  Name:     {}", lexicon.name().unwrap_or_default());
        println!(
            "  Language: {:?}\n",
            lexicon
                .attributes()
                .as_ref()
                .map(|attrib| attrib
                    .language_code
                    .as_ref()
                    .expect("languages must have language codes"))
                .expect("languages must have attributes")
        );
    }

    println!();
    println!("Found {} lexicons.", lexicons.len());
    println!();

    Ok(())
}