What stages does a request go through from the user interface to receiving server response data?

The request from the user interface to receive a server response usually goes through the following stages:

1. User input: the user interacts with the interface (for example, clicking a button or entering data).
2. Request formation: the client application (browser, mobile app) forms an HTTP request with the necessary data.
3. Sending the request: the request is sent over the network to the server.
4. Receiving the request by the server: the server receives the request, processes it, for example, through a controller in a Java application.
5. Processing the request: the server executes business logic, accesses databases, and other services.
6. Forming the response: the server forms a response (for example, HTML, JSON).
7. Sending the response: the response is sent back to the client.
8. Processing the response on the client: the client receives the response and updates the user interface.

Each of these stages is important for the correct operation of the application and affects the speed and quality of user interaction.