The following are some advantages of microservices:
- You don’t have to invest to make the entire application scalable. In terms of a shopping cart, we could simply load balance the product search module and order-processing module while leaving less frequently used operation services such as inventory management, order cancellation, and delivery confirmation.
- We can easily match an organization’s departmental hierarchies. With different departments sponsoring product development in large enterprises this can be a huge advantage.
- As the code is already done in a way that it is not dependent on code from other modules with isolated functionality, if done right, then the chances of a change in one microservice affecting another microservice is very small.
- Since the entire application is more like a group of ecosystems that are isolated from each other – we can deploy one microservice at a time if required. Failure of any one service need not bring the entire system down.
- You could port a single microservice or a whole bunch of them overnight to a different technology without your users even knowing it. And it goes without saying that you need to maintain those service contracts.
- Comes implied but a word of caution is necessary here. Make sure that your asynchronous call is used well and synchronous ones are not really blocking the whole flow of information. Use data partitioning well. We will come to this a little later, so don’t worry now.
- In a competitive world, it is a definite advantage as users tend to lose interest quickly if you are slow to respond to new feature requests or the adoption of a new technology within your system.