example of selling on gemini

gemini_example.py

import os
import requests
import json
import base64
import hmac
import hashlib
import datetime, time


def make_sell(amount, price):
    base_url = 'https://api.gemini.com'
    endpoint = '/v1/order/new'
    url = base_url + endpoint

    gemini_api_key = os.environ.get('GEMINI_API_KEY')
    gemini_api_secret = os.environ.get('GEMINI_API_SECRET').encode()

    t = datetime.datetime.now()
    payload_nonce =  str(int(time.mktime(t.timetuple()) * 1000))

    payload = {
    'request': '/v1/order/new',
        'nonce': payload_nonce,
        'symbol': 'btcusd',
        'amount': str(amount),
        'price': str(price),
        'side': 'sell',
        'type': 'exchange limit',
        'options': ['maker-or-cancel'] 
    }

    encoded_payload = json.dumps(payload).encode()
    b64 = base64.b64encode(encoded_payload)
    signature = hmac.new(gemini_api_secret, b64, hashlib.sha384).hexdigest()

    request_headers = {
        'Content-Type': 'text/plain',
        'Content-Length': '0',
        'X-GEMINI-APIKEY': gemini_api_key,
        'X-GEMINI-PAYLOAD': b64,
        'X-GEMINI-SIGNATURE': signature,
        'Cache-Control': 'no-cache'
    }

    response = requests.post(url, data=None, headers=request_headers)
    return response.json()

if __name__ == '__main__':
    print('selling')
    make_sell(0.01, 20000)