Using async/await - AWS SDK for JavaScript

The AWS SDK for JavaScript V3 API Reference Guide describes in detail all the API operations for the AWS SDK for JavaScript version 3 (V3).

Using async/await

Rather than using promises, you should consider using async/await. Async functions are simpler and take less boilerplate than using promises. Await can only be used in an async function to asynchronously wait for a value.

The following example uses async/await to list all of your Amazon DynamoDB tables in us-west-2.

Note

For this example to run:

  • Install the AWS SDK for JavaScript DynamoDB client by entering npm install @aws-sdk/client-dynamodb in the command line of your project.

  • Ensure you have configured your AWS credentials correctly. For more information, see Setting credentials. 

import { DynamoDBClient, 
ListTablesCommand } from "@aws-sdk/client-dynamodb";
(async function () {
    const dbClient = new DynamoDBClient({ region: "us-west-2" });
    const command = new ListTablesCommand({});

    try {
        const results = await dbClient.send(command);
        console.log(results.TableNames.join('\n'));
    } catch (err) {
        console.error(err)
    }
})();
Note

Not all browsers support async/await. See Async functions for a list of browsers with async/await support.