Retry (#31)

* Add script to run multiple destinations

* Add more destinations

* Add DB Request helper

* Make DB Profile use DBRequestHelper

* Add retry using urllib3

* Revert all changes to main

* Make retries and backoff factor have default val

exampleDB.py

@@ -0,0 +1,71 @@
+import datetime
+
+from pyhafas import HafasClient
+from pyhafas.profile import DBProfile
+
+profile = DBProfile()
+profile.activate_retry()
+client = HafasClient(profile, debug=True)
+
+origin = 8096009
+destinations = [
+    8011160,
+    8010060,
+    8000050,
+    8000019,
+    8071993,
+    8000351,
+    8005197,
+    8000096,
+    8010073,
+    8010093,
+    8011471,
+    8013479,
+    8013483,
+    8010215,
+    8013487,
+    8012666,
+    8010327,
+    597502,
+    8011044,
+    8010016,
+    8010139,
+    8010153,
+    8012963,
+    8012585,
+    8010241,
+    8012617,
+    8010304,
+    8010033,
+    8010324,
+    8010338,
+    8010381,
+    8010392,
+    8096022,
+    8001235,
+    8000310,
+    8003992,
+    8004004,
+    8000323,
+    8005247,
+    182006,
+    968306,
+]
+
+
+for destination in destinations:
+    journey = client.journeys(  # type: ignore
+        origin=origin,
+        destination=destination,
+        date=datetime.datetime.now(),
+        max_journeys=1,
+        products={
+            "long_distance_express": False,
+            "long_distance": False,
+            "ferry": False,
+            "bus": False,
+            "suburban": False,
+            "subway": False,
+        },
+    )
+    print(journey)

pyhafas/profile/base/helper/request.py

@@ -3,6 +3,8 @@
 from typing import Tuple
 
 import requests
+from requests.adapters import HTTPAdapter
+from urllib3.util.retry import Retry
 
 from pyhafas.profile import ProfileInterface
 from pyhafas.profile.base.mappings.error_codes import BaseErrorCodesMapping
@@ -11,6 +13,8 @@
 
 
 class BaseRequestHelper(RequestHelperInterface):
+    request_session = requests.session()
+
     def calculate_checksum(self: ProfileInterface, data: str) -> str:
         """
         Calculates the checksum of the request (required for most profiles)
@@ -56,6 +60,20 @@ def url_formatter(self: ProfileInterface, data: str) -> str:
 
         return url
 
+    def activate_retry(self: ProfileInterface, retries: int = 4, backoff_factor: float = 1) -> None:
+        self.request_session = requests.Session()
+
+        retry = Retry(
+            total=retries,
+            read=retries,
+            connect=retries,
+            backoff_factor=backoff_factor,
+        )
+
+        adapter = HTTPAdapter(max_retries=retry)
+        self.request_session.mount("http://", adapter)
+        self.request_session.mount("https://", adapter)
+
     def request(self: ProfileInterface, body) -> HafasResponse:
         """
         Sends the request and does a basic parsing of the response and error handling
@@ -69,7 +87,7 @@ def request(self: ProfileInterface, body) -> HafasResponse:
         data.update(self.requestBody)
         data = json.dumps(data)
 
-        res = requests.post(
+        res = self.request_session.post(
             self.url_formatter(data),
             data=data,
             headers={