From flask import request
Method Determination
Request. Method 'post', 'get'
Get Form Content
Request. Form ['form _ name']
Obtain URL parameters
(? Key = value) request. args. Get ('key ','')
Request. ARGs ["url"]
Obtain uploaded files
Make sure to set the 'enctype = "multipart/form-Data" 'attribute in the HTML form, F = request. files ['the _ file'], from werkzeug import secure_filename, file_name = secure_filename (F. filename)
Retrieve cookies
Request. Cookies. Get ('cook _ name ')
Request. Cookies ['cook _ name']
Set cookies
Resp = make_response (render_template (...), rep. set_cookie ('key', 'value ')
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Res = app. make_response ('Hello LG ')
Res. set_cookie ('username', value = 'lgphp', max_age = 20000)
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Delete cooikes
Res = app. make_response (render_template (...))
Res. delete_cookie ('username') is optional.
Res. set_cookie ('username', value = 'lgphp', expires = 0)
Determine whether a cookie exists?
If (request. Cookies ):