coinbase-example.py

import os
import dotenv
from coinbase.wallet.client import Client
dotenv.load_dotenv()

# make api key, will yield API_KEY and SECRET_KEY
# passphrase is ur password to login app
API_KEY = os.environ.get("API_KEY")
SECRET_KEY = os.environ.get("SECRET_KEY")
PASSPHRASE = os.environ.get("PASSPHRASE")

USDC_ACCT_ID = ""
ETH_ACCT_ID = ""
WALLET_ADDR = ""
USD_PAYMENT_METHOD = ""


client = Client(API_KEY, SECRET_KEY)


def log_action(action):
    with open("transactions.json", "a") as file:
        json.dump(action, file, indent=4)
        file.write("\n")
    print("Logged")


def list_accounts():
    print(client.get_accounts()["data"][:50])


def list_payment_methods():
    print(client.get_payment_methods())


def usdc_balance():
    usdc_acct = client.get_account(USDC_ACCT_ID)
    balance = usdc_acct.balance.amount
    return float(balance)


def eth_balance():
    eth_acct = client.get_account(ETH_ACCT_ID)
    balance = eth_acct.balance.amount
    return float(balance)


def convertUSDCtoUSD(amt):
    sale = client.sell(
        USDC_ACCT_ID,
        amount=amt,
        currency="USDC",
    )
    log_action(sale)


def buyETHwithUSD(amt):
    buy = client.buy(
        ETH_ACCT_ID,
        amount=amt,
        currency="USD",
        payment_method=USD_PAYMENT_METHOD,
    )
    log_action(buy)


def transfer_eth(amt):
    withdraw = client.send_money(
        ETH_ACCT_ID,
        to=WALLET_ADDR,
        amount=amt,
        currency="ETH",
        payment_method=USD_PAYMENT_METHOD,
    )
    log_action(withdraw)


def loop_arb():
    while True:
        print()
        time.sleep(5)
        balance = usdc_balance()
        if balance > 50:
            print("-----------------------")
            print("| We have USDC balance |")
            print("-----------------------")
            convertUSDCtoUSD(balance)
            print("Converted USDC to USD")
            buyETHwithUSD(balance - 20)
            print("Bought ETH with USD")
        else:
            print("We don't have USDC balance")

loop_arb()