feature: added prometheus_client

Author: bourbonbourbon

app.py

@@ -1,15 +1,23 @@
 # pylint: disable=missing-module-docstring
 # pylint: disable=missing-function-docstring
 import datetime
+from prometheus_client import Counter, generate_latest
 from flask import Flask, jsonify
 from version import __version__
 from services.opensensemap import OpenSenseMap
 
+total_version_requests = Counter("version_requests", "Total Number of version requests")
+total_temp_requests = Counter("temp_requests", "Total Number of temperature requests")
+
 app = Flask(__name__)
 
+@app.route("/metrics")
+def metrics():
+    return generate_latest()
 
 @app.route("/version")
 def print_version():
+    total_version_requests.inc()
     return jsonify({"version": __version__}), 200
 
 
@@ -28,6 +36,7 @@ def temperature():
     )
     api = OpenSenseMap(base_url="https://api.opensensemap.org")
     data, return_code = api.get_avg_temperature(params=date)
+    total_temp_requests.inc()
     return jsonify(data), return_code
 
 

requirements.txt

@@ -1,6 +1,7 @@
 # Automatically generated by https://github.com/damnever/pigar.
 
 Flask==3.1.0
+prometheus_client==0.21.1
 pytest==8.3.4
 requests==2.32.3
 waitress==3.0.2