[Django] Requests from iOS time out when raven is enabled

I am having an issue with requests from iOS timing out when Raven is enabled. Any endpoints from my project will time out, but not endpoints that are included from third party apps. The issue disappears when excluding Raven from installed apps. This issue only occurs when sending a request from an iOS app. The same requests made using httpie or Postman are successful.

To make things more complicated, the request only times out on the iOS side. As soon as it times out, Django (or rather runserver) happily reports that the request was successful with a 200 status code.

I apologize for the lack of detailed information or a stack trace, but I have not been able to produce an actual error from the Django application. Please let me know if further information is needed or if you have ideas on things I should investigate further.

URL Structure

As mentioned above, requests for URLs from third-party apps succeed, but any requests to URLs from my project fail.

Base URL File

# project/project/urls.py

urlpatterns = [
    url(r'^foo/', include('foo.urls'),    # Third party application works fine
    url(r'^my-app/', include('my_app.urls'),    # Application defined in my project fails
]

App URL File

# project/my_app/urls.py

app_name = 'my-app'

urlpatterns = [
    url(r'^bar/$', BarView.as_view(), name='bar-detail'),
]

Views

The views from the project are mostly based on DRF’s generic views (eg generics.ListCreateView). I don’t believe the issue lies here, since some of the third-party apps used utilize the same generic views.

Dependency Versions

• Django 2.0.3
• Django Rest Framework 3.7.7
• Raven 6.6.0

Downgrading to 6.1.0 causes the requests to work, but constantly logs errors about URLConf, which I believe is related to the Django 2 support that was 6.2.0 addresses.

Upstream Issue

For reference, the upstream issue I’m trying to fix is knowmetools/km-api#298

[ashwoods]

Thx. I’m not entirely sure why, but I can fix it. On Wed 28. Mar 2018 at 19:20, Brandogs [e-mail] wrote:

A little extra clarification thank to @cdriehuys https://github.com/cdriehuys . This is happening when the body is set for an endpoint that isn’t expecting it. This occurs if the body is empty or not. In our case, it just happened to be empty because of the default value for parameters.

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[ashwoods]

@cdriehuys Hi Chathan. mind installing a version that doesn’t instrument drf to pinpoint the problem?