Make Bristol bin collection code async

Closes: #54

agenda/__init__.py

@@ -301,11 +301,11 @@ async def waste_collection_events() -> list[Event]:
     return events
 
 
-def bristol_waste_collection_events(start_date: date) -> list[Event]:
+async def bristol_waste_collection_events(start_date: date) -> list[Event]:
     """Waste colllection events."""
     uprn = "358335"
 
-    return waste_schedule.get_bristol_gov_uk(start_date, data_dir, uprn)
+    return await waste_schedule.get_bristol_gov_uk(start_date, data_dir, uprn)
 
 
 async def get_data(now: datetime) -> typing.Mapping[str, str | object]:
@@ -325,12 +325,14 @@ async def get_data(now: datetime) -> typing.Mapping[str, str | object]:
         bank_holiday,
         rockets,
         backwell_bins,
+        bristol_bins,
     ) = await asyncio.gather(
         fx.get_gbpusd(config),
         gwr.advance_ticket_date(data_dir),
         get_next_bank_holiday(last_year, next_year),
         thespacedevs.get_launches(rocket_dir, limit=40),
         waste_collection_events(),
+        bristol_waste_collection_events(today),
     )
 
     reply = {
@@ -385,7 +387,7 @@ async def get_data(now: datetime) -> typing.Mapping[str, str | object]:
     events += get_accommodation(os.path.join(my_data, "accommodation.yaml"))
     events += travel.all_events(today, config["data"]["personal-data"])
     events += conference.get_list(os.path.join(my_data, "conferences.yaml"))
-    events += backwell_bins + bristol_waste_collection_events(today)
+    events += backwell_bins + bristol_bins
 
     next_up_series = Event(
         date=date(2026, 6, 1),

agenda/waste_schedule.py

@@ -6,9 +6,8 @@ import typing
 from collections import defaultdict
 from datetime import date, datetime, timedelta
 
-import lxml.html
-import requests
 import httpx
+import lxml.html
 
 from .types import Event
 
@@ -91,7 +90,7 @@ def parse(root: lxml.html.HtmlElement) -> list[Event]:
 BristolSchedule = list[dict[str, typing.Any]]
 
 
-def get_bristol_data(data_dir: str, uprn: str) -> BristolSchedule:
+async def get_bristol_data(data_dir: str, uprn: str) -> BristolSchedule:
     """Get Bristol Waste schedule, with cache."""
     now = datetime.now()
     waste_dir = os.path.join(data_dir, "waste")
@@ -112,7 +111,7 @@ def get_bristol_data(data_dir: str, uprn: str) -> BristolSchedule:
     now_str = now.strftime("%Y-%m-%d_%H:%M")
     filename = f"{waste_dir}/{now_str}_{uprn}.json"
 
-    r = get_bristol_gov_uk_data(uprn)
+    r = await get_bristol_gov_uk_data(uprn)
 
     with open(filename, "wb") as out:
         out.write(r.content)
@@ -120,7 +119,7 @@ def get_bristol_data(data_dir: str, uprn: str) -> BristolSchedule:
     return typing.cast(BristolSchedule, r.json()["data"])
 
 
-def get_bristol_gov_uk_data(uprn: str) -> requests.Response:
+async def get_bristol_gov_uk_data(uprn: str) -> httpx.Response:
     """Get JSON from Bristol City Council."""
     UA = "Mozilla/5.0 (Windows NT 10.0; Win64; x64)"
     HEADERS = {
@@ -139,11 +138,11 @@ def get_bristol_gov_uk_data(uprn: str) -> requests.Response:
     }
 
     _uprn = str(uprn).zfill(12)
-    s = requests.Session()
 
+    async with httpx.AsyncClient() as client:
         # Initialise form
         payload = {"servicetypeid": "7dce896c-b3ba-ea11-a812-000d3a7f1cdc"}
-    response = s.get(
+        response = await client.get(
             "https://bristolcouncil.powerappsportals.com/completedynamicformunauth/",
             headers=HEADERS,
             params=payload,
@@ -153,7 +152,7 @@ def get_bristol_gov_uk_data(uprn: str) -> requests.Response:
 
         # Set the search criteria
         payload = {"Uprn": "UPRN" + _uprn}
-    response = s.post(
+        response = await client.post(
             f"https://{host}/bcprdfundyna001-llpg/DetailedLLPG",
             headers=HEADERS,
             json=payload,
@@ -161,17 +160,18 @@ def get_bristol_gov_uk_data(uprn: str) -> requests.Response:
 
         # Retrieve the schedule
         payload = {"uprn": _uprn}
-    response = s.post(
+        response = await client.post(
             f"https://{host}/bcprdfundyna001-alloy/NextCollectionDates",
             headers=HEADERS,
             json=payload,
         )
+
     return response
 
 
-def get_bristol_gov_uk(start_date: date, data_dir: str, uprn: str) -> list[Event]:
+async def get_bristol_gov_uk(start_date: date, data_dir: str, uprn: str) -> list[Event]:
     """Get waste collection schedule from Bristol City Council."""
-    data = get_bristol_data(data_dir, uprn)
+    data = await get_bristol_data(data_dir, uprn)
 
     by_date: defaultdict[date, list[str]] = defaultdict(list)