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How do Microservices Communicate With Each Other?

Updated: Feb 14

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Microservices is a type of architecture for building distributed software systems. These microservices are composed of small, independent services.

Containerization is the foundation of microservices. Applications are thus divided into more manageable, deployable, and smaller components. As a result, we developers can easily and quickly create and deploy these services. mainly because we need not be concerned with complicated dependencies.

With the help of microservice architecture, developers can build programs that can easily scale and endure disturbances. The microservices can then be set up on platforms for distributed computing or cloud computing.

In this article, we will discuss microservices- what they are, and how they interact in distributed computing settings. We will also talk about the advantages that microservice design offers to customers, companies, and developers alike.

Let's dive right in!

  1. So how do microservices communicate with each other?

  2. What Benefits Do Microservices Bring to Cloud Computing and Web Applications?

  3. Conclusion: The Future of Cloud Computing Lies in the Efficient Communication of Microservices

Microservice architecture is a popular way to build applications that are composed of multiple services. However, orchestrating communication between these services can be a challenging task. When different services need to communicate with each other, there are several challenges that need to be addressed such as latency, reliability, scalability, and security.

So how do microservices communicate with each other?

Microservices provide the flexibility and scalability needed for modern applications. However, for microservices to work properly, they must be able to communicate with each other in a secure and reliable manner. This is where protocols and architectures come in.

Some of the common protocols that microservices use in communication are API calls, gRPC, and Message Brokers. Let's look at them in more detail.

  • API calls - API calls are a way for applications to communicate with one another over a network. They allow requests to be sent from one application to another, and the receiving application can respond with the desired data. REST API is the most popular type of API that is used. API calls are used to access data from different sources, such as databases or web services. The API call will send a request containing the parameters of what data is needed. Then the receiving application will respond with that data. This process allows different microservices to easily access and share information across different platforms.

  • gRPC - gRPC is an open-source Remote Procedure Call (RPC) system that enables internet-based application communication. Its foundation is the HTTP/2 protocol, and it serializes data using Protocol Buffers. We can create reliable, effective, and secure distributed applications quickly, thanks to gRPC. We can build services that are quickly accessed from anywhere in the world by utilizing gRPC. Additionally offering a variety of capabilities including authentication, streaming, and error handling, gRPC is a great option for creating distributed applications.

  • Message Brokers - Software tools called message brokers enable communication between two or more microservices. They serve as an intermediary, allowing reliable and secure communication between applications. Message brokers serve as a bridge for data exchange and act as an intermediate between various systems. They can transport communications between various apps or services as well as send and receive messages. Businesses can guarantee the security of their data and the prompt, effective delivery of communications by using message brokers. Additionally, they can be utilized to combine different communication systems into a single one.