Glassthought

create-table

1 min read

Code snippet 
package aws.ddb.snippets.lsi;
 
import aws.ddb.snippets.Constants;
import aws.ddb.snippets.Factory;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
import software.amazon.awssdk.services.dynamodb.model.AttributeDefinition;
import software.amazon.awssdk.services.dynamodb.model.BillingMode;
import software.amazon.awssdk.services.dynamodb.model.CreateTableRequest;
import software.amazon.awssdk.services.dynamodb.model.CreateTableResponse;
import software.amazon.awssdk.services.dynamodb.model.KeySchemaElement;
import software.amazon.awssdk.services.dynamodb.model.KeyType;
import software.amazon.awssdk.services.dynamodb.model.LocalSecondaryIndex;
import software.amazon.awssdk.services.dynamodb.model.Projection;
import software.amazon.awssdk.services.dynamodb.model.ProjectionType;
import software.amazon.awssdk.services.dynamodb.model.ScalarAttributeType;
 
public class CreateLSITable {
 
    public static void main(String[] args) throws Exception {
 
        createTable();
    }
 
    private static void createTable() {
 
        final String tableName = Constants.LSI_BY_TIMESTAMP_TABLE_NAME;  // replace with your table name
        final String lsiName = "timestamp-index";
 
        final CreateTableRequest request = CreateTableRequest.builder()
            .tableName(tableName)
            .keySchema(
                KeySchemaElement.builder().attributeName("hash_key").keyType(KeyType.HASH).build(),
                KeySchemaElement.builder().attributeName("sort_key").keyType(KeyType.RANGE).build())
            .attributeDefinitions(
                AttributeDefinition.builder().attributeName("hash_key").attributeType(ScalarAttributeType.S).build(),
                AttributeDefinition.builder().attributeName("sort_key").attributeType(ScalarAttributeType.S).build(),
                AttributeDefinition.builder().attributeName("timestamp").attributeType(ScalarAttributeType.S).build())
            .localSecondaryIndexes(LocalSecondaryIndex.builder()
                .indexName(lsiName)
                .keySchema(
                    KeySchemaElement.builder().attributeName("hash_key").keyType(KeyType.HASH).build(),
                    KeySchemaElement.builder().attributeName("timestamp").keyType(KeyType.RANGE).build())
                .projection(Projection.builder().projectionType(ProjectionType.ALL).build())
                .build())
            .billingMode(BillingMode.PAY_PER_REQUEST)
            .build();
 
        final DynamoDbClient ddb = Factory.getClient();
 
        final CreateTableResponse response = ddb.createTable(request);
 
        System.out.println("Table created: " + response.tableDescription().tableName());
    }
}

GT Sandbox Commit:

gt.sandbox.checkout.commit 5ed9efe \
&& cd "${GT_SANDBOX_REPO}/javaSandbox"

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