Python flask session not getting stored in generator function










1















I am streaming output to the frontend using a generator in one of my flask routes and storing a value in a session variable like this:



@bp.route('/stream', methods=['GET', 'POST'])
@login_required
def stream():
def generate():
if request.method == "POST":
...
...
# trying to store a variable to use in another function
session['testing'] = "testing"

return Response(stream_with_context(generate()), mimetype='text/html')


I want to use this variable in another function like this:



@bp.route('/other_func', methods=['GET', 'POST'])
def other_func():
...
...
# trying to recieve it here
testing = session.get('testing')

print(testing) # this value is 'None'


Any variable I store in the generator function results to None.



How can I get around this?










share|improve this question






















  • Do you have secret key set in your flask app config ?

    – Dinko Pehar
    Nov 16 '18 at 8:14







  • 1





    @DinkoPehar yes, it's in my init.py, this used to work before, after adding the generator function it stopped working, does the generator function somehow affect the session from being stored?

    – honeybadger_execute
    Nov 16 '18 at 10:17











  • what if you try session.permanent = True just before your session['testing'] = "testing" ?

    – Tobin
    Nov 16 '18 at 10:20











  • Are you sure that generate function is executing that part in if statement ? Part request.method == 'POST' ?

    – Dinko Pehar
    Nov 16 '18 at 11:10






  • 1





    @DinkoPehar I think that's what it is too, since the generator doesn't store the values and just iterates through it once, I believe my session is getting cleared out after the function is done. Trying to think of a way around this...

    – honeybadger_execute
    Nov 16 '18 at 18:37















1















I am streaming output to the frontend using a generator in one of my flask routes and storing a value in a session variable like this:



@bp.route('/stream', methods=['GET', 'POST'])
@login_required
def stream():
def generate():
if request.method == "POST":
...
...
# trying to store a variable to use in another function
session['testing'] = "testing"

return Response(stream_with_context(generate()), mimetype='text/html')


I want to use this variable in another function like this:



@bp.route('/other_func', methods=['GET', 'POST'])
def other_func():
...
...
# trying to recieve it here
testing = session.get('testing')

print(testing) # this value is 'None'


Any variable I store in the generator function results to None.



How can I get around this?










share|improve this question






















  • Do you have secret key set in your flask app config ?

    – Dinko Pehar
    Nov 16 '18 at 8:14







  • 1





    @DinkoPehar yes, it's in my init.py, this used to work before, after adding the generator function it stopped working, does the generator function somehow affect the session from being stored?

    – honeybadger_execute
    Nov 16 '18 at 10:17











  • what if you try session.permanent = True just before your session['testing'] = "testing" ?

    – Tobin
    Nov 16 '18 at 10:20











  • Are you sure that generate function is executing that part in if statement ? Part request.method == 'POST' ?

    – Dinko Pehar
    Nov 16 '18 at 11:10






  • 1





    @DinkoPehar I think that's what it is too, since the generator doesn't store the values and just iterates through it once, I believe my session is getting cleared out after the function is done. Trying to think of a way around this...

    – honeybadger_execute
    Nov 16 '18 at 18:37













1












1








1


1






I am streaming output to the frontend using a generator in one of my flask routes and storing a value in a session variable like this:



@bp.route('/stream', methods=['GET', 'POST'])
@login_required
def stream():
def generate():
if request.method == "POST":
...
...
# trying to store a variable to use in another function
session['testing'] = "testing"

return Response(stream_with_context(generate()), mimetype='text/html')


I want to use this variable in another function like this:



@bp.route('/other_func', methods=['GET', 'POST'])
def other_func():
...
...
# trying to recieve it here
testing = session.get('testing')

print(testing) # this value is 'None'


Any variable I store in the generator function results to None.



How can I get around this?










share|improve this question














I am streaming output to the frontend using a generator in one of my flask routes and storing a value in a session variable like this:



@bp.route('/stream', methods=['GET', 'POST'])
@login_required
def stream():
def generate():
if request.method == "POST":
...
...
# trying to store a variable to use in another function
session['testing'] = "testing"

return Response(stream_with_context(generate()), mimetype='text/html')


I want to use this variable in another function like this:



@bp.route('/other_func', methods=['GET', 'POST'])
def other_func():
...
...
# trying to recieve it here
testing = session.get('testing')

print(testing) # this value is 'None'


Any variable I store in the generator function results to None.



How can I get around this?







python-3.x session flask






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 15 '18 at 22:40









honeybadger_executehoneybadger_execute

14411




14411












  • Do you have secret key set in your flask app config ?

    – Dinko Pehar
    Nov 16 '18 at 8:14







  • 1





    @DinkoPehar yes, it's in my init.py, this used to work before, after adding the generator function it stopped working, does the generator function somehow affect the session from being stored?

    – honeybadger_execute
    Nov 16 '18 at 10:17











  • what if you try session.permanent = True just before your session['testing'] = "testing" ?

    – Tobin
    Nov 16 '18 at 10:20











  • Are you sure that generate function is executing that part in if statement ? Part request.method == 'POST' ?

    – Dinko Pehar
    Nov 16 '18 at 11:10






  • 1





    @DinkoPehar I think that's what it is too, since the generator doesn't store the values and just iterates through it once, I believe my session is getting cleared out after the function is done. Trying to think of a way around this...

    – honeybadger_execute
    Nov 16 '18 at 18:37

















  • Do you have secret key set in your flask app config ?

    – Dinko Pehar
    Nov 16 '18 at 8:14







  • 1





    @DinkoPehar yes, it's in my init.py, this used to work before, after adding the generator function it stopped working, does the generator function somehow affect the session from being stored?

    – honeybadger_execute
    Nov 16 '18 at 10:17











  • what if you try session.permanent = True just before your session['testing'] = "testing" ?

    – Tobin
    Nov 16 '18 at 10:20











  • Are you sure that generate function is executing that part in if statement ? Part request.method == 'POST' ?

    – Dinko Pehar
    Nov 16 '18 at 11:10






  • 1





    @DinkoPehar I think that's what it is too, since the generator doesn't store the values and just iterates through it once, I believe my session is getting cleared out after the function is done. Trying to think of a way around this...

    – honeybadger_execute
    Nov 16 '18 at 18:37
















Do you have secret key set in your flask app config ?

– Dinko Pehar
Nov 16 '18 at 8:14






Do you have secret key set in your flask app config ?

– Dinko Pehar
Nov 16 '18 at 8:14





1




1





@DinkoPehar yes, it's in my init.py, this used to work before, after adding the generator function it stopped working, does the generator function somehow affect the session from being stored?

– honeybadger_execute
Nov 16 '18 at 10:17





@DinkoPehar yes, it's in my init.py, this used to work before, after adding the generator function it stopped working, does the generator function somehow affect the session from being stored?

– honeybadger_execute
Nov 16 '18 at 10:17













what if you try session.permanent = True just before your session['testing'] = "testing" ?

– Tobin
Nov 16 '18 at 10:20





what if you try session.permanent = True just before your session['testing'] = "testing" ?

– Tobin
Nov 16 '18 at 10:20













Are you sure that generate function is executing that part in if statement ? Part request.method == 'POST' ?

– Dinko Pehar
Nov 16 '18 at 11:10





Are you sure that generate function is executing that part in if statement ? Part request.method == 'POST' ?

– Dinko Pehar
Nov 16 '18 at 11:10




1




1





@DinkoPehar I think that's what it is too, since the generator doesn't store the values and just iterates through it once, I believe my session is getting cleared out after the function is done. Trying to think of a way around this...

– honeybadger_execute
Nov 16 '18 at 18:37





@DinkoPehar I think that's what it is too, since the generator doesn't store the values and just iterates through it once, I believe my session is getting cleared out after the function is done. Trying to think of a way around this...

– honeybadger_execute
Nov 16 '18 at 18:37












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