Flask Framework Cookbook - Second Edition

How to do it...

Flask provides a class named View, which can be inherited to add our custom behavior.

The following is an example of a simple GET request:

from flask.views import View 
 
class GetRequest(View): 
 
    def dispatch_request(self): 
        bar = request.args.get('foo', 'bar') 
        return 'A simple Flask request where foo is %s' % bar 
 
app.add_url_rule( 
    '/a-get-request', view_func=GetRequest.as_view('get_request') 
) 

To accommodate both GET and POST requests, we can write the following code:

from flask.views import View class GetPostRequest(View): methods = ['GET', 'POST'] def dispatch_request(self): if request.method == 'GET': bar = request.args.get('foo', 'bar') if request.method == 'POST': bar = request.form.get('foo', 'bar') return 'A simple Flask ...