How to obtain values of request variables using Python and Flask
PythonVariablesRequestFlaskPython Problem Overview
I'm wondering how to go about obtaining the value of a POST/GET request variable using Python with Flask.
With Ruby, I'd do something like this:
variable_name = params["FormFieldValue"]
How would I do this with Flask?
Python Solutions
Solution 1 - Python
If you want to retrieve POST data:
first_name = request.form.get("firstname")
If you want to retrieve GET (query string) data:
first_name = request.args.get("firstname")
Or if you don't care/know whether the value is in the query string or in the post data:
first_name = request.values.get("firstname")
request.values is a CombinedMultiDict that combines Dicts from request.form and request.args.
Solution 2 - Python
You can get posted form data from request.form and query string data from request.args.
myvar = request.form["myvar"]
myvar = request.args["myvar"]
Solution 3 - Python
Adding more to Jason's more generalized way of retrieving the POST data or GET data
from flask_restful import reqparse
def parse_arg_from_requests(arg, **kwargs):
parse = reqparse.RequestParser()
parse.add_argument(arg, **kwargs)
args = parse.parse_args()
return args[arg]
form_field_value = parse_arg_from_requests('FormFieldValue')