Direct client-to-microservice communication

In client-to-microservice communication, the client talks directly to the microservice. This approach is simple to implement, but it introduces tight coupling between the client and microservice, which makes the client more susceptible to breaking changes. Breaking changes are highly discouraged and should be avoided to ensure backward/forward compatibility. Further, the client needs to be aware of the business use cases and how it can address them by calling different microservices that result in violating the domain-driven design. Additionally, each microservice call will result in additional latency that affects user experience and mobility. Exposing multiple microservices directly to clients will expand the attack surface and will make the system and organization susceptible to attacks. Another challenge with direct communication is the synchronous calling of services, which undermines the benefits of microservices. The following diagram...