Use view as a label to be consistent with other labels

closes #109

Author: asherf

django_prometheus/__init__.py

@@ -10,7 +10,7 @@
 
 __all__ = ["middleware", "models", "pip_prometheus"]
 
-__version__ = "1.2.0.dev"
+__version__ = "2.0.0.dev"
 
 # Import pip_prometheus to export the pip metrics automatically.
 try:

django_prometheus/middleware.py

@@ -160,7 +160,7 @@ def register(self):
             Counter,
             "django_http_exceptions_total_by_view",
             "Count of exceptions by view.",
-            ["view_name"],
+            ["view"],
         )
 
 
@@ -276,7 +276,7 @@ def process_exception(self, request, exception):
         self.metrics.exceptions_by_type.labels(type=type(exception).__name__).inc()
         if hasattr(request, "resolver_match"):
             name = request.resolver_match.view_name or "<unnamed view>"
-            self.metrics.exceptions_by_view.labels(view_name=name).inc()
+            self.metrics.exceptions_by_view.labels(view=name).inc()
         if hasattr(request, "prometheus_after_middleware_event"):
             self.metrics.requests_latency_by_view_method.labels(
                 view=self._get_view_name(request), method=request.method