![]() ![]() The schema for the message format was very rigid. ![]() In the early ’90s, a popular client-server protocol called SOAP used XML message format with a hardcoded schema. ![]() This is a basic problem that will be solved by technology like gRPC. With REST and GraphQL, this is mostly unidirectional. Message formats can be similar to XML, which adheres to a schema, or a JSON file, which must contain specific key-value pairs.Īnother important aspect of this type of communication to understand is that it is based on a request and response mechanism, which means that the server only communicates when the client initiates the communication. This message format is based on some schemas, and by not following these schemas, communication wouldn’t be taking place. The second most important aspect of client communication is the message format on which both the client and server can agree. They are transport mechanisms that follow some guidelines for transporting data over the internet. A protocol is a language or set of internet communication rules. In general client-server communication, the client simply sends a request asking for resources or services to the server, and the server responds to that request.įor client-server communication, clients and servers need to have libraries that can understand the protocol in which they are communicating. The popular client-server architecture divides communication into two parts: one that takes up all heavy tasks and provides services, known as the server, and the other one that enjoys those services, known as the client. ![]()
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