feat: initial commit - Phase 1 & 2 core features

backend/.venv/lib/python3.9/site-packages/prometheus_client/django/__init__.py

@@ -0,0 +1,5 @@
+from .exposition import PrometheusDjangoView
+
+__all__ = [
+    "PrometheusDjangoView",
+]

backend/.venv/lib/python3.9/site-packages/prometheus_client/django/exposition.py

@@ -0,0 +1,43 @@
+import os
+
+from django.http import HttpResponse
+from django.views import View
+
+import prometheus_client
+from prometheus_client import multiprocess
+from prometheus_client.exposition import _bake_output
+
+
+class PrometheusDjangoView(View):
+    multiprocess_mode: bool = "PROMETHEUS_MULTIPROC_DIR" in os.environ or "prometheus_multiproc_dir" in os.environ
+    registry: prometheus_client.CollectorRegistry = None
+
+    def get(self, request, *args, **kwargs):
+        if self.registry is None:
+            if self.multiprocess_mode:
+                self.registry = prometheus_client.CollectorRegistry()
+                multiprocess.MultiProcessCollector(self.registry)
+            else:
+                self.registry = prometheus_client.REGISTRY
+        accept_header = request.headers.get("Accept")
+        accept_encoding_header = request.headers.get("Accept-Encoding")
+        # Bake output
+        status, headers, output = _bake_output(
+            registry=self.registry,
+            accept_header=accept_header,
+            accept_encoding_header=accept_encoding_header,
+            params=request.GET,
+            disable_compression=False,
+        )
+        status = int(status.split(" ")[0])
+        return HttpResponse(
+            output,
+            status=status,
+            headers=headers,
+        )
+
+    def options(self, request, *args, **kwargs):
+        return HttpResponse(
+            status=200,
+            headers={"Allow": "OPTIONS,GET"},
+        )