Add health check endpoint

pymysql_as_mysql.py

@@ -0,0 +1,2 @@
+import pymysql
+pymysql.install_as_MySQLdb()

qlinks/cdn_cache/cloudflare_cache.py

@@ -1,18 +1,16 @@
-from CloudFlare import CloudFlare
+from cloudflare import Cloudflare
 from django.conf import settings
 
 from qlinks.cdn_cache import BaseCDNCache
 
 
 class CloudflareCDNCache(BaseCDNCache):
-    cf: CloudFlare
+    cf: Cloudflare
     zone: str
 
     def __init__(self):
-        self.cf = CloudFlare(token=getattr(settings, 'QLINKS_CDN_CLOUDFLARE_API_TOKEN', None))
+        self.cf = Cloudflare(api_token=getattr(settings, 'QLINKS_CDN_CLOUDFLARE_API_TOKEN', None))
         self.zone = settings.QLINKS_CDN_CLOUDFLARE_ZONE_ID
 
     def purge(self, url: str) -> None:
-        self.cf.zones.purge_cache.post(self.zone, data={
-            'files': [url],
-        })
+        self.cf.cache.purge(zone_id=self.zone, files=[url])

qlinks/email.py

@@ -1,6 +1,5 @@
 from django.conf import settings
 from django.core.mail import send_mail
-from django.template import Context
 from django.template.loader import get_template
 from django.utils.translation import gettext as _
 

qlinks/migrations/0001_initial.py

@@ -1,9 +1,8 @@
 # Generated by Django 4.0.1 on 2022-01-24 03:42
 
+import django.utils.timezone
 from django.conf import settings
 from django.db import migrations, models
-import django.db.models.deletion
-import django.utils.timezone
 
 
 class Migration(migrations.Migration):

qlinks/migrations/0002_link_next_check.py

@@ -1,6 +1,7 @@
 # Generated by Django 4.0.1 on 2022-01-25 00:13
 
 from django.db import migrations, models
+
 import qlinks.models
 
 

qlinks/urls/short.py

@@ -2,9 +2,10 @@ from functools import partial
 
 from django.urls import path
 
-from qlinks.views import short_link
+from qlinks.views import health_check, short_link
 
 urlpatterns = [
     path('', partial(short_link, path=''), name='short_link'),
+    path('api/health_check', health_check, name='health_check'),
     path('<path:path>', short_link, name='short_link'),
 ]

qlinks/views.py

@@ -1,5 +1,5 @@
 from django.conf import settings
-from django.http import HttpResponseRedirect
+from django.http import HttpResponse, HttpResponseRedirect
 from django.shortcuts import get_object_or_404
 
 from qlinks.models import Link
@@ -10,3 +10,8 @@ def short_link(request, path):
     return HttpResponseRedirect(link, headers={
         'X-Powered-By': settings.QLINKS_POWERED_BY
     })
+
+
+def health_check(request):
+    Link.objects.exists()
+    return HttpResponse('qlinks seems to work!')

requirements.txt

@@ -1,3 +1,4 @@
-Django>=4,<4.1
+Django>=4.2,<5
 django-hosts
 requests
+cloudflare