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"""DWD WFS API - Utility module to update pollencells.md."""
from __future__ import annotations
import requests
def fetch_json() -> dict:
"""Fetch data via json."""
url = (
"https://maps.dwd.de/geoserver/dwd/ows?service=WFS"
+ "&version=2.0.0&request=GetFeature&typeName="
+ "dwd:Pollenfluggebiete"
+ "&OutputFormat=application/json"
)
print(url)
response = requests.get(url=url, timeout=10.0)
return response.json()
def parse_json(data: dict) -> tuple[str, str]:
"""Parse json data."""
stations = []
for x in data["features"]:
cellid = x["properties"]["GF"]
name = x["properties"]["GEN"]
new_entry = (cellid, name)
if new_entry not in stations:
stations.append(new_entry)
return stations
# Fetch and sort all available stations
all_stations = []
print("Fetching Pollenfluggebiete")
all_stations.extend(parse_json(fetch_json()))
all_stations.sort(key=lambda x: x[0])
print("Updating pollencells.md")
with open("pollencells.md", "w", encoding="utf-8") as f:
print("| Cell ID | Name |", file=f)
print("|---------|------|", file=f)
for cell in all_stations:
output = "| " + str(cell[0]) + " | " + cell[1] + " |"
print(output, file=f)
f.close()
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