How to fix django appendslash runtime error? - django

Question

So basically I have a pdf.html that is called upon by my view.
My form in the pdf.html is as follows:
<form action="{% url "soapdf:submitemail" %}" method="post">
{% csrf_token %}
{{ emailform }}
<input type="submit" value="Submit">
</form>
The corresponding function on views.py looks like this:
def submitemail(request):
if(request.method=='POST'):
return HttpResponse(request.POST['text_email'])
else:
return HttpResponse("false")
and my urls.py looks as follows:
app_name = 'soapdf' # use this to namespace the application so that you can use the url tagging scheme
urlpatterns = [
path('',views.get_pdf,name='get_pdf'),
path('submitemail/',views.submitemail,name='submitemail')
]
However on clicking the submit button I get the following error. My redirect has the slash but still doesnt work.
RuntimeError at /submitemail
You called this URL via POST, but the URL doesn't end in a slash and you have APPEND_SLASH set. Django can't redirect to the slash URL while maintaining POST data. Change your form to point to localhost:8000/submitemail/ (note the trailing slash), or set APPEND_SLASH=False in your Django settings.
Any Ideas on how to fix this runtimeerror

Answer 1

Add trailing slash in your main urls.py where you have included this get_pdf urls
I think it's like
urlpatterns =[
path('get_pdf',include('yourapp.urls')),
]
and it will be
urlpatterns =[
path('get_pdf/',include('yourapp.urls')),
]

Answer 2

If SEO is not important, you can serve both with and without slash. In Django 3.X:
from django.urls import re_path
urlpatterns = [
re_path('^/?$',views.get_pdf,name='get_pdf'),
re_path('^submitemail/?$',views.submitemail,name='submitemail')
]
But if SEO is important, it is better to add slash automatically by Nginx or something else.