Creating a DynamoDB table and adding an item using CDK in Typescript

Can anyone guide me on how to add items to a Dynamodb Table using CDK and Typescript? I have figured out the partition/sort keys creation, but I am struggling to find a straightforward solution for adding items or attributes to those items. Additionally, I need help in specifying the value for the partition key (currently set as a string type, but I want to add a number value to it). Any advice or assistance would be highly appreciated. Thank you!

 const dynamoTable= new Table(this, "dynamoTable", {
      tableName: "dynamoTable",
      partitionKey: { name: 'viewer_id', type: AttributeType.STRING },
      billingMode: BillingMode.PAY_PER_REQUEST,
      tableClass: TableClass.STANDARD
    });
typescriptamazon-web-servicesamazon-dynamodbaws-cdk

Answer №1

CDK alone is limited in its ability to directly add items, as it primarily focuses on synthesizing CloudFormation Templates. Essentially, CDK acts as a facilitator by passing the template to CloudFormation, which in turn sets up resources without the capability to add items to DynamoDB tables.

To incorporate this functionality, alternative solutions such as utilizing a lambda function or creating a bash script with the CLI to import items from a JSON file are necessary. These actions should ideally be integrated into a coordinated pipeline for effective execution.

A general guideline to follow:

If the task occurs before deployment, leveraging CDK along with the aws SDK to gather information or perform preliminary actions within the account is feasible. However, any manipulations done during or after deployment require the implementation of a dedicated pipeline.

Answer №2

Dynamodb is a versatile database system that allows for the dynamic addition of attributes at runtime. For example, when you insert data into a table, new attributes are generated automatically based on the item being inserted. https://i.sstatic.net/ZeGpH.png

No need to define attributes upfront during the initial setup.

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