Card price API for store repricing and buylists

import csv
import io
import requests

API = "https://api.tickermint.cards"

# A whole set, one row per card and sealed product. No key.
rows = csv.DictReader(io.StringIO(requests.get(f"{API}/sets/23237.csv", timeout=30).text))
market = {int(r["product_id"]): float(r["market_price_usd"]) for r in rows if r["market_price_usd"]}
print(len(market), "priced products in the set")

import os
import requests

API = "https://api.tickermint.cards"
session = requests.Session()
session.headers["X-API-Key"] = os.environ["TICKERMINT_KEY"]

# Every priced printing of one game for the latest day, 5,000 rows a page
market = {}
params = {"game": "pokemon"}
while True:
    page = session.get(f"{API}/v1/bulk/day", params=params, timeout=60).json()
    for row in page["rows"]:
        if row["market"] is not None:
            market[(row["product_id"], row["variant"])] = float(row["market"])
    if not page["next"]:
        break
    last = page["rows"][-1]
    params = {"day": page["day"], "game": "pokemon",
              "after": last["product_id"], "after_variant": last["variant"]}

# Your stock: TCGplayer product id, printing, quantity. Your own pricing rules go here.
for pid, printing, qty in [(517045, "Holofoil", 2), (502554, "Holofoil", 12)]:
    price = market.get((pid, printing))
    if price:
        print(pid, printing, qty, "sell at", round(price, 2), "buylist at", round(price * 0.6, 2))