Gunakan DescribeTimeToLive dengan AWS SDK atau CLI

Contoh kode berikut menunjukkan cara menggunakanDescribeTimeToLive.

CLI

AWS CLI

Untuk melihat pengaturan Waktu ke Langsung untuk tabel

describe-time-to-liveContoh berikut menampilkan Pengaturan Time to Live untuk MusicCollection tabel.

aws dynamodb describe-time-to-live \
    --table-name MusicCollection

Output:

{
    "TimeToLiveDescription": {
        "TimeToLiveStatus": "ENABLED",
        "AttributeName": "ttl"
    }
}

Untuk informasi selengkapnya, lihat Waktu untuk Hidup di Panduan Pengembang Amazon DynamoDB.

• Untuk API detailnya, lihat DescribeTimeToLivedi Referensi AWS CLI Perintah.

Java

SDKuntuk Java 2.x

Jelaskan TTL konfigurasi pada tabel DynamoDB yang ada.

import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
import software.amazon.awssdk.services.dynamodb.model.DescribeTimeToLiveRequest;
import software.amazon.awssdk.services.dynamodb.model.DescribeTimeToLiveResponse;
import software.amazon.awssdk.services.dynamodb.model.DynamoDbException;
import software.amazon.awssdk.services.dynamodb.model.ResourceNotFoundException;

import java.util.Optional;

        final DescribeTimeToLiveRequest request = DescribeTimeToLiveRequest.builder()
                .tableName(tableName)
                .build();
        try (DynamoDbClient ddb = DynamoDbClient.builder()
                .region(region)
                .build()) {
            final DescribeTimeToLiveResponse response = ddb.describeTimeToLive(request);
            System.out.println(tableName + " description of time to live is "
                    + response.toString());
        } catch (ResourceNotFoundException e) {
            System.err.format("Error: The Amazon DynamoDB table \"%s\" can't be found.\n", tableName);
            System.exit(1);
        } catch (DynamoDbException e) {
            System.err.println(e.getMessage());
            System.exit(1);
        }
        System.exit(0);

• Untuk API detailnya, lihat DescribeTimeToLivedi AWS SDK for Java 2.x APIReferensi.

JavaScript

SDKuntuk JavaScript (v3)

// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
import { DynamoDBClient, DescribeTimeToLiveCommand } from "@aws-sdk/client-dynamodb";

const describeTableTTL = async (tableName, region) => {
    const client = new DynamoDBClient({
        region: region,
        endpoint: `https://dynamodb.${region}.amazonaws.com`
    });

    try {
        const ttlDescription = await client.send(new DescribeTimeToLiveCommand({ TableName: tableName }));

        if (ttlDescription.TimeToLiveDescription.TimeToLiveStatus === 'ENABLED') {
            console.log("TTL is enabled for table %s.", tableName);
        } else {
            console.log("TTL is not enabled for table %s.", tableName);
        }

        return ttlDescription;
    } catch (e) {
        console.error(`Error describing table: ${e}`);
        throw e;
    }
}

// enter table name and change region if desired.
describeTableTTL('your-table-name', 'us-east-1');

• Untuk API detailnya, lihat DescribeTimeToLivedi AWS SDK for JavaScript APIReferensi.

Python

SDKuntuk Python (Boto3)

# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0
import boto3

def describe_ttl(table_name, region):
    """
    Describes TTL on an existing table, as well as a region.

    :param table_name: String representing the name of the table
    :param region: AWS Region of the table - example `us-east-1`
    :return: Time to live description.
    """
    try:
        dynamodb = boto3.resource('dynamodb', region_name=region)
        ttl_description = dynamodb.describe_time_to_live(TableName=table_name)
        print(
            f"TimeToLive for table {table_name} is status {ttl_description['TimeToLiveDescription']['TimeToLiveStatus']}")

        return ttl_description
    except Exception as e:
        print(f"Error describing table: {e}")
        raise


# Enter your own table name and AWS region
describe_ttl('your-table-name', 'us-east-1')

• Untuk API detailnya, lihat DescribeTimeToLive AWSSDKReferensi Python (Boto3). API

Untuk daftar lengkap panduan AWS SDK pengembang dan contoh kode, lihatMenggunakan DynamoDB dengan AWS SDK. Topik ini juga mencakup informasi tentang memulai dan detail tentang SDK versi sebelumnya.