Decorators with arguments with Flask
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I'm trying to create a decorator with arguments and use it in conjunction with the flask module.
def ios_network_access(arg): #TODO:
def real_ios_network_access_decorator(fn):
def ios_network_access_inner():
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn()
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return real_ios_network_access_decorator
@app.route("/someurl")
@ios_network_access("some argument")
def some_function_for_url():
pass
However, because flask uses function names in their decorator (flask requires uniqueness of function names and the decorator masks it), my end-points are not being created.
There is a very similar question here that asks regarding non-parameterized decorators; however, due to the additional function layer, this question is different. See AssertionError: View function mapping is overwriting an existing endpoint function: main
Any thoughts on how to pass an argument into a decorator given flask's qwerks?
python flask decorator python-decorators
add a comment |
I'm trying to create a decorator with arguments and use it in conjunction with the flask module.
def ios_network_access(arg): #TODO:
def real_ios_network_access_decorator(fn):
def ios_network_access_inner():
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn()
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return real_ios_network_access_decorator
@app.route("/someurl")
@ios_network_access("some argument")
def some_function_for_url():
pass
However, because flask uses function names in their decorator (flask requires uniqueness of function names and the decorator masks it), my end-points are not being created.
There is a very similar question here that asks regarding non-parameterized decorators; however, due to the additional function layer, this question is different. See AssertionError: View function mapping is overwriting an existing endpoint function: main
Any thoughts on how to pass an argument into a decorator given flask's qwerks?
python flask decorator python-decorators
add a comment |
I'm trying to create a decorator with arguments and use it in conjunction with the flask module.
def ios_network_access(arg): #TODO:
def real_ios_network_access_decorator(fn):
def ios_network_access_inner():
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn()
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return real_ios_network_access_decorator
@app.route("/someurl")
@ios_network_access("some argument")
def some_function_for_url():
pass
However, because flask uses function names in their decorator (flask requires uniqueness of function names and the decorator masks it), my end-points are not being created.
There is a very similar question here that asks regarding non-parameterized decorators; however, due to the additional function layer, this question is different. See AssertionError: View function mapping is overwriting an existing endpoint function: main
Any thoughts on how to pass an argument into a decorator given flask's qwerks?
python flask decorator python-decorators
I'm trying to create a decorator with arguments and use it in conjunction with the flask module.
def ios_network_access(arg): #TODO:
def real_ios_network_access_decorator(fn):
def ios_network_access_inner():
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn()
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return real_ios_network_access_decorator
@app.route("/someurl")
@ios_network_access("some argument")
def some_function_for_url():
pass
However, because flask uses function names in their decorator (flask requires uniqueness of function names and the decorator masks it), my end-points are not being created.
There is a very similar question here that asks regarding non-parameterized decorators; however, due to the additional function layer, this question is different. See AssertionError: View function mapping is overwriting an existing endpoint function: main
Any thoughts on how to pass an argument into a decorator given flask's qwerks?
python flask decorator python-decorators
python flask decorator python-decorators
asked Jan 4 at 2:42
mattsapmattsap
3,4581728
3,4581728
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
wraps
function is a convenience way to wrap your decorator function.
Attributes of the wrapper function are updated with the corresponding attributes from the original function.
from functools import wraps
def ios_network_access(arg):
def real_ios_network_access_decorator(fn):
@wraps(fn)
def ios_network_access_inner(*args, **kwds):
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn(*args, **kwds)
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return ios_network_access_inner
return real_ios_network_access_decorator
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
wraps
function is a convenience way to wrap your decorator function.
Attributes of the wrapper function are updated with the corresponding attributes from the original function.
from functools import wraps
def ios_network_access(arg):
def real_ios_network_access_decorator(fn):
@wraps(fn)
def ios_network_access_inner(*args, **kwds):
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn(*args, **kwds)
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return ios_network_access_inner
return real_ios_network_access_decorator
add a comment |
wraps
function is a convenience way to wrap your decorator function.
Attributes of the wrapper function are updated with the corresponding attributes from the original function.
from functools import wraps
def ios_network_access(arg):
def real_ios_network_access_decorator(fn):
@wraps(fn)
def ios_network_access_inner(*args, **kwds):
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn(*args, **kwds)
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return ios_network_access_inner
return real_ios_network_access_decorator
add a comment |
wraps
function is a convenience way to wrap your decorator function.
Attributes of the wrapper function are updated with the corresponding attributes from the original function.
from functools import wraps
def ios_network_access(arg):
def real_ios_network_access_decorator(fn):
@wraps(fn)
def ios_network_access_inner(*args, **kwds):
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn(*args, **kwds)
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return ios_network_access_inner
return real_ios_network_access_decorator
wraps
function is a convenience way to wrap your decorator function.
Attributes of the wrapper function are updated with the corresponding attributes from the original function.
from functools import wraps
def ios_network_access(arg):
def real_ios_network_access_decorator(fn):
@wraps(fn)
def ios_network_access_inner(*args, **kwds):
if not request.json:
print("aborting because not json", fn.__name__)
abort(400)
try:
print("check args", arg)
return fn(*args, **kwds)
except Exception as e:
print("the following error occurred in:", fn.__name__)
print(request.json)
print(str(e))
print("---------------------------------")
abort(503)
return ios_network_access_inner
return real_ios_network_access_decorator
edited Jan 4 at 3:46
answered Jan 4 at 3:05
ling7334ling7334
359211
359211
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