Batch Insert in DynamoDB Using Java (Guide w/ Code Examples)
Provided by Rafal Wilinski
To insert multiple items into a DynamoDB table in a single batch operation in Java, you can use the batchWriteItem
method of the AmazonDynamoDB
client. Here YourTableName
is the table name where you want to insert the items.
import com.amazonaws.services.dynamodbv2.AmazonDynamoDB; import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClientBuilder; import com.amazonaws.services.dynamodbv2.model.Attribute.Attributevalue; import com.amazonaws.services.dynamodbv2.model.writeitemrequest; import com.amazonaws.services.dynamodbv2.model.batchwriteitemrequest; import com.amazonaws.services.dynamodbv2.model.batchwriteitemresult; public class DynamoDBBatchInsertExample { public static void main(String[] args) { AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient(); Map<String, List<WriteRequest>> requestItems = new HashMap<String, List<WriteRequest>>(); List<WriteRequest> writeRequests = new ArrayList<WriteRequest>(); writeRequests.add(new WriteRequest(new PutRequest( new Item().withPrimaryKey("id", 1).withString("name", "John") .withNumber("age", 30)))); writeRequests.add(new WriteRequest(new PutRequest( new Item().withPrimaryKey("id", 2).withString("name", "Jane") .withNumber("age", 25)))); requestItems.put("YourTableName", writeRequests); BatchWriteItemRequest request = new BatchWriteItemRequest() .withRequestItems(requestItems); BatchWriteItemResult result = client.batchWriteItem(request); System.out.println("Items inserted successfully!"); } }
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