DynamoDB: Query Items (Guide w/ Code Examples)

You can use the query operation to query items using the AWS JavaScript SDK. It takes in several parameters, including the table name, an object that defines the query, and a callback function to handle the query results.

Here is an example of how to query items from a DynamoDB table called myTable where the id attribute is equal to a specific value:

var AWS = require('aws-sdk');
var dynamoDb = new AWS.DynamoDB.DocumentClient();

var params = {
    TableName: "myTable",
    KeyConditionExpression: "id = :idValue",
    ExpressionAttributeValues: {
        ":idValue": "someIdValue"
    }
};

dynamoDb.query(params, function(err, data) {
    if (err) {
        console.log(err);
    } else {
        console.log(data);
    }
});