Provide numeric value for dates for easier analysis later (#332)

* Feature/ratelimiter update (#330)

* updated request_is_limited algorithm

* Strip out numbers from paths

  This is so we can better aggregate by path in cloudwatch

* Provide numeric value for dates for easier analysis later

---------

Co-authored-by: Russ Biggs <[email protected]>

openaq_api/openaq_api/models/logging.py

@@ -4,6 +4,7 @@
 from humps import camelize
 from pydantic import BaseModel, ConfigDict, Field, computed_field
 import re
+from dateutil.parser import parse
 
 class LogType(StrEnum):
     SUCCESS = "SUCCESS"
@@ -120,7 +121,17 @@ def params(self) -> str:
     @property
     def params_obj(self) -> dict:
         """dict: returns URL query params as key values from request"""
-        return dict(x.split("=", 1) for x in self.params.split("&") if "=" in x)
+        params = dict(x.split("=", 1) for x in self.params.split("&") if "=" in x)
+        try:
+			# if bad strings make it past our validation than this will protect the log
+            if 'date_from' in params.keys():
+                params['date_from_epoch'] = parse(params['date_from']).timestamp()
+            if 'date_to' in params.keys():
+                params['date_to_epoch'] = parse(params['date_to']).timestamp()
+        except Exception:
+            pass
+
+        return params
 
     @computed_field(return_type=list)
     @property