Request-reply pattern

1. How does the request-response pattern work?
2. What is the request-response cycle?
3. What is a request-response protocol?
4. What is request-response architecture?

How does the request-response pattern work?

More specifically, it is a message exchange pattern in which a requestor sends a request message to a replier system, which receives and processes the request, ultimately returning a message in response.

What is the request-response cycle?

The request and response cycle involves communication between you, and by you I mean your web browser, and a server somewhere. You and your web browser are often referred to as the client. The request you typically make is a GET request. You make a request to get data from the server.

What is a request-response protocol?

The HTTP protocol is a request/response protocol. A client sends a request to the server in the form of a request method, URI, and protocol version, followed by a MIME-like message containing request modifiers, client information, and possible body content over a connection with a server.

What is request-response architecture?

In a microservices architecture, request-response is also commonly used: a web server sends a connection request or query to a database, then waits for a response. For many use cases, this pattern — a chain of synchronous requests and responses — works well.