Python's Flask framework app calls Redis queue data

Task Async

Open the browser, enter the address, press ENTER, open the page. An HTTP request is then sent by the client to the server, the server processes the request, and the response (response) content is returned.

We are browsing the web every day, sending large and small requests to the server. Sometimes the server gets a request and finds that he needs to send a request to another server, or the server needs to do something else, so the initial request is blocked, which is to wait for the server to do something else.