I have been learning Flask for quite a while. This is a note to keep down of all those snippets and notes I have learnt and hope to keep it as a reminder.
1.if you want to get the browser info, use the following code:
1 2 3 4 5
2.There are two contexts in Flask: the application context and the request context.
3.before_first_request: Register a function to run before the first request is handled.
4.before_request: Register a function to run before each request.
5.after_request: Register a function to run after each request, if no unhandled exceptions occurred.
6.teardown_request: Register a function to run after each request, even if unhandled exceptions occurred.