[英]How to encode Unicode objects in Python?
很长一段时间以来,我一直试图在这里为我的问题找到解决方案,但似乎没有任何效果。 我正在尝试使用 Python 中的 Coinbase Pro API 进行身份验证,但我得到了
“Unicode 对象必须在散列之前编码”错误。
请参阅下面的代码以供参考。
import json, hmac, hashlib, time, requests, base64
from requests.auth import AuthBase
# Create custom authentication for Exchange
class CoinbaseExchangeAuth(AuthBase):
def __init__(self, api_key, secret_key, passphrase):
self.api_key = api_key
self.secret_key = secret_key
self.passphrase = passphrase
def __call__(self, request):
timestamp = str(time.time())
message = timestamp + request.method + request.path_url + (request.body or '')
hmac_key = base64.b64decode(self.secret_key)
signature = hmac.new(hmac_key, message, hashlib.sha256)
signature_b64 = signature.digest().encode('base64').rstrip('\n')
request.headers.update({
'CB-ACCESS-SIGN': signature_b64,
'CB-ACCESS-TIMESTAMP': timestamp,
'CB-ACCESS-KEY': self.api_key,
'CB-ACCESS-PASSPHRASE': self.passphrase,
'Content-Type': 'application/json'
})
return request
api_url = 'https://api.pro.coinbase.com/'
auth = CoinbaseExchangeAuth(api_key='XXXX',
secret_key='XXXX',
passphrase='XXXX')
# Get accounts
r = requests.get(api_url + 'accounts', auth=auth)
如果有人能指出我正确的方向,那就太好了。 搜索后我找不到正确的解决方案。
hashlib
采用bytes或bytearray 。 尝试这个 -
...
message = message.encode('UTF-8')
hmac_key = self.secret_key.encode('UTF-8')
signature = hmac.new(hmac_key, message, hashlib.sha256)
经过一些调试后,我发现以下解决方案对我有用:
def __call__(self, request):
print(request.body)
timestamp = str(time.time())
message = (timestamp + (request.method).upper() + request.path_url + (request.body or ''))
message = message.encode('UTF-8')
hmac_key = base64.b64decode(self.secret_key)
signature = hmac.new(hmac_key, message, hashlib.sha256).digest()
signature_b64 = base64.b64encode(signature)
这是我解决它的方法, message.encode('utf-8')
def __call__(self, request):
timestamp = str(time.time())
message = timestamp + request.method + request.path_url + (request.body or '')
hmac_key = base64.b64decode(self.secret_key)
signature = hmac.new(hmac_key, message.encode('utf-8'), hashlib.sha256)
signature_b64 = base64.b64encode(signature.digest())
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