HTTP for Inter-Service Communication?

HTTP for Inter-Service Communication?

HTTP for inter-service communication? HTTP has been created for a different purpose, they are created for browsers to back end server communication to retrieve some data using the request-response model.

After the evolution of distributed systems, microservices-based applications attracted the interest of nearly every organization wanting to survive market competition.

After the evolution of distributed systems, microservices-based applications attracted the interest of nearly every organization wanting to grow with time and survive the market competition. Microservices allows us to scale and manage systems easily. Development time reduced due to distributed effort among many teams and time-to-market new features reduced significantly.

Due to distributed nature, communication among different components is over the network. And there are so many factors that can affect communication, either it can be security, added latency, or abrupt termination of ongoing communication, leading to increased infrastructure cost. Hence either we can fix the network, which exists with numerous problems or we can architect our system to be resilient and reliable over time.

Services communicate with each other in a distributed environment using network protocols. Our solutions to make our system resilient, reliable, and faster lies with correct protocol usage too. We have various protocols for different needs and for different network layers (i.e., OSI network model). When we talk about service to service communication or browser to service communication, HTTP usually adopted as a De facto standard. All REST-based services adopt this as a standard.

But whether our too much relying on HTTP is correct? HTTP has been created for a different purpose, they are created for browsers to back end server communication to retrieve some data using the request-response model. And in the current world, it is being used for even inter-services communications, reducing our system’s real power.

Here, I’ll cover issues with HTTP and possible available solutions for common use cases. And later I’ll provide some details about RSocket, which can alleviate many of these existing issues and can make our application fully reactive.

Blocking Communication

HTTP is an application layer protocol in the OSI network model. Over time HTTP has evolved and provided different versions to adopt. Let’s go through them and visualize the issues that lie with them.

microservice protocol grpc

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