When adding multiple images to a product, each image creates its own productId instead of belonging to the same productId

When working with TypeScript, you may encounter a situation where adding multiple images to a product results in each image having its own productId instead of belonging to the same productId. This can cause issues when trying to manage and display the images for a specific product. In this blog post, we will explore two possible solutions to this problem.

Solution 1: Modifying the data structure

One way to address this issue is by modifying the data structure of the product and image objects. Instead of each image having its own productId, we can create a separate array of images within the product object. Each image will then have a unique imageId, but all images will be associated with the same productId. Here’s an example of how the modified data structure could look:


interface Product {
  productId: string;
  name: string;
  images: Image[];
}

interface Image {
  imageId: string;
  imageUrl: string;
}

To add multiple images to a product using this modified data structure, you can simply push new image objects into the images array of the product. Here’s an example:


const product: Product = {
  productId: "123",
  name: "Example Product",
  images: []
};

const image1: Image = {
  imageId: "1",
  imageUrl: "image1.jpg"
};

const image2: Image = {
  imageId: "2",
  imageUrl: "image2.jpg"
};

product.images.push(image1);
product.images.push(image2);

By using this approach, all images will be associated with the same productId, allowing you to easily manage and display them for a specific product.

Solution 2: Using a map to associate images with products

Another solution to this problem is to use a map to associate images with products. This approach can be useful if you need to quickly access images for a specific product. Here’s an example of how you can implement this solution:


const productImageMap: Map = new Map();

function addImageToProduct(productId: string, image: Image) {
  if (productImageMap.has(productId)) {
    const images = productImageMap.get(productId);
    images.push(image);
  } else {
    productImageMap.set(productId, [image]);
  }
}

// Adding images to products
addImageToProduct("123", {
  imageId: "1",
  imageUrl: "image1.jpg"
});

addImageToProduct("123", {
  imageId: "2",
  imageUrl: "image2.jpg"
});

In this solution, the productImageMap is a map where the keys are the productIds and the values are arrays of images associated with each productId. The addImageToProduct function is used to add images to products. If the productId already exists in the map, the image is added to the existing array of images. Otherwise, a new entry is created in the map with the productId and the image as the initial array.

By using a map, you can easily retrieve all images associated with a specific productId and perform any necessary operations.

These are two possible solutions to the problem of each image creating its own productId instead of belonging to the same productId. Depending on your specific requirements and use case, one solution may be more suitable than the other. Choose the solution that best fits your needs and implement it in your TypeScript project.

Remember to always test your code and adapt it to your specific project requirements.

When adding multiple images to a product, each image creates its own productId instead of belonging to the same productId