Create DynamoDB Table

What is DynamoDB?

Amazon DynamoDB is a serverless NoSQL database that provides high-performance, scalable data storage and retrieval, and integrates well with AWS services like Lambda.

Why create a DynamoDB table?

  • Post data storage: Create a BlogPosts table to store information such as ID, title, content, and creation date of a post.

  • Serverless support: DynamoDB does not require server management, suitable for Lambda and API Gateway architectures.

  • High performance: Ensures fast queries and automatically scales according to traffic.

Steps:

  1. Go to AWS Management Console.
  2. Select the Amazon DynamoDB service.
  3. In the navigation menu, select Tables

dynamodb-interface.png

  1. Select Create table.
  2. In the Create table interface:

  • Table name: Enter BlogPosts.

  • Partition key: Enter postId (type String) as the primary key to uniquely identify each post.

  • Settings: Select Default settings (On-demand mode, suitable for Free Tier).

  • Click Create table.

create-table.png 6. Check the table:

  • After creation, the BlogPosts table will appear in the Tables list with the status Active.

table-created.png

  • Make sure the table name is BlogPosts, because Lambda functions (getPosts, createPost) will use this name in the environment variable TABLE_NAME.
  • Create a table in the same region as the Lambda functions (e.g. us-east-1).
  • The Lambda IAM Role needs the dynamodb:Scan and dynamodb:PutItem permissions (configured in the previous step).

Done

  • You have created a BlogPosts table to store your post data.