Method sign

python/ccxt/phemex.py:4415–4447

(self, path, api: Any = 'public', method='GET', params={}, headers: dict = None, body: Str = None)

        return tiers

    def sign(self, path, api: Any = 'public', method='GET', params={}, headers: dict = None, body: Str = None):
        query = self.omit(params, self.extract_params(path))
        requestPath = '/' + self.implode_params(path, params)
        url = requestPath
        queryString = ''
        if (method == 'GET') or (method == 'DELETE') or (method == 'PUT') or (url == '/positions/assign'):
            if query:
                queryString = self.urlencode_with_array_repeat(query)
                url += '?' + queryString
        if api == 'private':
            self.check_required_credentials()
            timestamp = self.seconds()
            xPhemexRequestExpiry = self.safe_integer(self.options, 'x-phemex-request-expiry', 60)
            expiry = self.sum(timestamp, xPhemexRequestExpiry)
            expiryString = str(expiry)
            headers = {
                'x-phemex-access-token': self.apiKey,
                'x-phemex-request-expiry': expiryString,
            }
            payload = ''
            if method == 'POST':
                isOrderPlacement = (path == 'g-orders') or (path == 'spot/orders') or (path == 'orders')
                if isOrderPlacement:
                    if self.safe_string(params, 'clOrdID') is None:
                        id = self.safe_string(self.options, 'brokerId', 'CCXT123456')
                        params['clOrdID'] = id + self.uuid16()
                payload = self.json(params)
                body = payload
                headers['Content-Type'] = 'application/json'
            auth = requestPath + queryString + expiryString + payload
            headers['x-phemex-request-signature'] = self.hmac(self.encode(auth), self.encode(self.secret), hashlib.sha256)
        url = self.implode_hostname(self.urls['api'][api]) + url
        return {'url': url, 'method': method, 'body': body, 'headers': headers}

    def set_leverage(self, leverage: int, symbol: Str = None, params={}):
        """