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DynamoDB: Query JSON (Guide w/ Code Examples)

Rafal Wilinski

Provided by Rafal Wilinski

JavaScript AWS SDK does not provide a specific method to query data as JSON. But you can use the query operation to get data as an array and pass the result to JSON.stringify method to convert the array to a JSON string.

const AWS = require('aws-sdk'); const dynamoDb = new AWS.DynamoDB.DocumentClient(); const params = { TableName: 'tableName', KeyConditionExpression: 'primaryKey = :primaryKeyValue', ExpressionAttributeValues: { ':primaryKeyValue': 'value' } }; dynamoDb.query(params, (error, data) => { if (error) { console.error(error); return; } console.log(JSON.stringify(data.Items)); });

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