Quote a buy (Python)

Example

This is an example. Every value in it (names, amounts, addresses) is there to show you how; change any of them to suit you. It’s quote.py from developers/examples, as it is. Anything that sends waits for SEND=1: there is no testnet, so a sent transaction spends real ETH.

quote.py

# What 0.001 ETH buys of a coin right now, simulated through every route it trades on. Sends nothing.
#   COIN=0x… python3 quote.py      (no COIN: the busiest coin on Robinhood Chain today)
import json, os, urllib.request

API = os.environ.get("UPRALLY_API", "https://uprally.co/api/v1")

def get(path):
    try:
        with urllib.request.urlopen(API + path) as r:
            return json.load(r)
    except urllib.error.HTTPError as e:
        err = json.load(e)["error"]
        raise SystemExit(f"{err['code']}: {err['message']} {err.get('fix', '')}")

coin = os.environ.get("COIN") or get("/coins?sort=volume&limit=1")["coins"][0]["address"]
q = get(f"/quote?token={coin}&side=buy&amount={os.environ.get('AMOUNT', '0.001')}")
print(f"{q['amountIn']['amount']} ETH buys {q['amountOut']['amount']} {q['symbol']} (at least {q['minOut']['amount']})")
print(f"RESULT {q['amountOut']['wei']}")