How to set more AWS dynamoDb table properties using AWS CDK

Question

I am very new to AWS and I have been reading the dynamoDb SDK documentation and the properties that you can specify when creating a Table are far more than the properties that you pass when creating a table using AWS CDK.

SDK example:

var AWS = require("aws-sdk");

AWS.config.update({
  region: "us-west-2",
  endpoint: "http://localhost:8000"
});

var dynamodb = new AWS.DynamoDB();

var params = {
    TableName : "Movies",
    KeySchema: [       
        { AttributeName: "year", KeyType: "HASH"},  //Partition key
        { AttributeName: "title", KeyType: "RANGE" }  //Sort key
    ],
    AttributeDefinitions: [       
        { AttributeName: "year", AttributeType: "N" },
        { AttributeName: "title", AttributeType: "S" }
    ],
    ProvisionedThroughput: {       
        ReadCapacityUnits: 10, 
        WriteCapacityUnits: 10
    }
};

dynamodb.createTable(params, function(err, data) {
    if (err) {
        console.error("Unable to create table. Error JSON:", JSON.stringify(err, null, 2));
    } else {
        console.log("Created table. Table description JSON:", JSON.stringify(data, null, 2));
    }
});

CDK example:

import * as dynamodb from '@aws-cdk/aws-dynamodb';


const table = new dynamodb.Table(this, 'Hits', {
    partitionKey: { name: 'path', type: dynamodb.AttributeType.STRING }
});

here are all the props you can set which are more high level table related settings:

https://docs.aws.amazon.com/cdk/api/latest/docs/@aws-cdk_aws-dynamodb.Table.html

so for example if I want to set the provision throughput in CDK how do I do it? or set AttributeDefinitions, or indexes?

Do I wait unit table creation is done and then modify the table properties via the SDK UpdateTable call?

https://docs.aws.amazon.com/AWSJavaScriptSDK/latest/AWS/DynamoDB.html#updateTable-property

y. bs y. bs · Accepted Answer · 2021-09-30T09:39:30

Billing Mode

DynamoDB supports two billing modes:

PROVISIONED - the default mode where the table and global secondary indexes have configured read and write capacity.

PAY_PER_REQUEST - on-demand pricing and scaling. You only pay for what you use and there is no read and write capacity for the table or its global secondary indexes.

see the Billing Mode attribute: cdk docs

How to set more AWS dynamoDb table properties using AWS CDK

2 Answers