Design Patterns and Best Practices in Java

Microservice architecture with an example

Let's look at a simple example to understand how microservices can help us. Let's say we need to build a feature on an e-commerce site, where you can upload pictures of products. When a product's image is uploaded, the service needs to save the image and also create a scaled version (suppose we want to keep all product images at a standard resolution of 1,280 × 720). In addition, we also need to create a thumbnail version of the image. In short, we are trying to do the following tasks in a single service.

The image upload service helps you to do the following:

1. Receive a product image.
2. Upload the image to storage.
3. Update the database with relevant information.
4. Scale the image to the standard resolution ...