flask_extra.py
4c896ae6b7a8wip-frontend-design

flask_extra.py
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			import functools
			import flask


			def add_response_headers(headers: dict):
			"""This decorator adds the headers passed in to the response"""

			def decorator(f):
			@functools.wraps(f)
			def decorated_function(args, *kwargs):
			resp = flask.make_response(f(args, *kwargs))
			h = resp.headers
			for header, value in headers.items():
			h[header] = value
			return resp

			return decorated_function

			return decorator


			def vary_xhr():
			"""View function decorator; adds HTTP header "Vary: X-Requested-With" to the response"""

			def decorator(f):
			header_adder = add_response_headers({'Vary': 'X-Requested-With'})
			return header_adder(f)

			return decorator