An architect always looks for alternative ways to avoid distributed transactions that eventually avoid complexity. For example, let's discuss the implementation of the following user case: a banking app that shows the last login time when a user logs into the app.
Design Iteration
First approach
In a banking system, let's say the user and security features are implemented by separate microservices. Let's also assume that the user database also stores the lastLoggedInTime field to store the last time the user logged in. This means whenever the user logs into the banking app, a call to update the user would be made (to the user service). This design involves a distributed transaction because every login involves...
