Implementing Photo Sharing Schema in CDK Typescript

PhotoSharingStack.ts

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

const USER_TABLE_NAME = 'Users';
const PHOTO_TABLE_NAME = 'Photos';
const COMMENT_TABLE_NAME = 'Comments';
const LIKE_TABLE_NAME = 'Likes';
const FOLLOW_TABLE_NAME = 'Follows';

export class PhotoSharingStack extends cdk.Stack {
  constructor(scope: cdk.Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // User table
    const userTable = new ddb.Table(this, USER_TABLE_NAME, {
      partitionKey: {
        name: 'userId',
        type: ddb.AttributeType.STRING,
      },
    });

    // Photo table
    const photoTable = new ddb.Table(this, PHOTO_TABLE_NAME, {
      partitionKey: {
        name: 'photoId',
        type: ddb.AttributeType.STRING,
      },
    });

    // Comment table
    const commentTable = new ddb.Table(this, COMMENT_TABLE_NAME, {
      partitionKey: {
        name: 'photoId',
        type: ddb.AttributeType.STRING,
      },
      sortKey: {
        name: 'commentId',
        type: ddb.AttributeType.STRING,
      },
    });

    // Like table
    const likeTable = new ddb.Table(this, LIKE_TABLE_NAME, {
      partitionKey: {
        name: 'photoId',
        type: ddb.AttributeType.STRING,
      },
      sortKey: {
        name: 'userId',
        type: ddb.AttributeType.STRING,
      },
    });

    // Follow table
    const followTable = new ddb.Table(this, FOLLOW_TABLE_NAME, {
      partitionKey: {
        name: 'userId',
        type: ddb.AttributeType.STRING,
      },
      sortKey: {
        name: 'followingId',
        type: ddb.AttributeType.STRING,
      },
    });

    // Example item creation functions (modify based on your needs)
    function createUser(userId: string, username: string, email: string) {
      const item = {
        userId,
        username,
        email,
        // ...other user attributes
      };
      userTable.putItem(item);
    }

    function createPhoto(userId: string, photoId: string, imageURL: string, caption: string) {
      const item = {
        photoId,
        imageURL,
        caption,
        // ...other photo attributes
      };
      photoTable.putItem(item);
    }

    // ... similar functions for comments, likes, and follows
  }
}