By Flask Team
Web applications use different HTTP methods when accessing URLs. You should familiarize yourself with the HTTP methods as you work with Flask. By default, a route only answers to GET requests. You can use the methods argument of the route() decorator to handle different HTTP methods.
from flask import request
@app.route('/login', methods=['GET', 'POST'])
def login():
if request.method == 'POST':
return do_the_login()
else:
return show_the_login_form()
The example above keeps all methods for the route within one function, which can be useful if each part uses some common data.
You can also separate views for different methods into different functions. Flask provides a shortcut for decorating such routes with get(), post(), etc. for each common HTTP method.
@app.get('/login')
def login_get():
return show_the_login_form()
@app.post('/login')
def login_post():
return do_the_login()
If GET is present, Flask automatically adds support for the HEAD method and handles HEAD requests according to the HTTP RFC. Likewise, OPTIONS is automatically implemented for you.
