Method create_auth_token

python/ccxt/coinbase.py:4851–4885

(self, seconds: Int, method: Str = None, url: Str = None, useEddsa=False)

        return parsedPositions

    def create_auth_token(self, seconds: Int, method: Str = None, url: Str = None, useEddsa=False):
        # v1 https://docs.cdp.coinbase.com/api-reference/authentication#php-2
        # v2  https://docs.cdp.coinbase.com/api-reference/v2/authentication
        uri = None
        if url is not None:
            uri = method + ' ' + url.replace('https://', '')
            quesPos = uri.find('?')
            # Due to we use mb_strpos, quesPos could be False in php. In that case, the quesPos >= 0 is True
            # Also it's not possible that the question mark is first character, only check > 0 here.
            if quesPos > 0:
                uri = uri[0:quesPos]
        # self.eddsa{"sub":"d2efa49a-369c-43d7-a60e-ae26e28853c2","iss":"cdp","aud":["cdp_service"],"uris":["GET api.coinbase.com/api/v3/brokerage/transaction_summary"]}
        nonce = self.random_bytes(16)
        aud = 'cdp_service' if useEddsa else 'retail_rest_api_proxy'
        iss = 'cdp' if useEddsa else 'coinbase-cloud'
        request = {
            'aud': [aud],
            'iss': iss,
            'nbf': seconds,
            'exp': seconds + 120,
            'sub': self.apiKey,
            'iat': seconds,
        }
        if uri is not None:
            if not useEddsa:
                request['uri'] = uri
            else:
                request['uris'] = [uri]
        if useEddsa:
            byteArray = self.base64_to_binary(self.secret)
            seed = self.array_slice(byteArray, 0, 32)
            return self.jwt(request, seed, 'sha256', False, {'kid': self.apiKey, 'nonce': nonce, 'alg': 'EdDSA'})
        else:
            # self.ecdsawith p256
            return self.jwt(request, self.encode(self.secret), 'sha256', False, {'kid': self.apiKey, 'nonce': nonce, 'alg': 'ES256'})

    def nonce(self):
        return self.milliseconds() - self.options['timeDifference']