staalptkram/app.py

import requests
from datetime import datetime, timedelta
from dateutil.parser import parse as dateparse
from pytz import reference
import flask

app = flask.Flask(__name__)


@app.route("/")
def index():
    try:
        refresh = int(flask.request.args.get("refresh", "300"))
    except ValueError:
        refresh = 300

    url = flask.request.args.get("apiurl", "")
    if url:
        json = requests.get(url).json()
        listings = [
            listing
            for listing in json["listings"]
            if listing["priorityProduct"] == "NONE"
        ]
    else:
        listings = []

    now = datetime.now()
    return flask.render_template(
        "marktplaats.html",
        listings=listings,
        refresh=refresh,
        dateparse=dateparse,
        now=now,
        next=now + timedelta(seconds=refresh),
        tz=reference.LocalTimezone(),
        apiurl=url,
    )