Method sign

python/ccxt/bitget.py:10605–10655

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

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

    def sign(self, path, api: Any = [], method='GET', params={}, headers: dict = None, body: Any = None):
        signed = api[0] == 'private'
        endpoint = api[1]
        pathPart = '/api'
        request = '/' + self.implode_params(path, params)
        payload = pathPart + request
        url = self.implode_hostname(self.urls['api'][endpoint]) + payload
        query = self.omit(params, self.extract_params(path))
        if not signed and (method == 'GET'):
            keys = list(query.keys())
            keysLength = len(keys)
            if keysLength > 0:
                url = url + '?' + self.urlencode(query)
        if signed:
            self.check_required_credentials()
            timestamp = str(self.nonce())
            auth = timestamp + method + payload
            if method == 'POST':
                body = self.json(params)
                auth += body
            else:
                if params:
                    sortedParams = self.keysort(params)
                    queryInner = '?' + self.urlencode(sortedParams, True)
                    # check  #21169 pr
                    if queryInner.find('%24') > -1:
                        queryInner = queryInner.replace('%24', '$')
                    url += queryInner
                    # bitget signs the raw(non-percent-encoded) query string, so the
                    # signature must use the decoded values(e.g. non-ascii market ids)
                    auth += '?' + self.rawencode(sortedParams)
            signature = self.hmac(self.encode(auth), self.encode(self.secret), hashlib.sha256, 'base64')
            broker = self.safe_string(self.options, 'broker')
            headers = {
                'ACCESS-KEY': self.apiKey,
                'ACCESS-SIGN': signature,
                'ACCESS-TIMESTAMP': timestamp,
                'ACCESS-PASSPHRASE': self.password,
                'X-CHANNEL-API-CODE': broker,
            }
            if method == 'POST':
                headers['Content-Type'] = 'application/json'
        sandboxMode = self.safe_bool_2(self.options, 'sandboxMode', 'sandbox', False)
        if sandboxMode and (path != 'v2/public/time') and (path != 'v3/market/current-fund-rate'):
            # https://github.com/ccxt/ccxt/issues/25252#issuecomment-2662742336
            if headers is None:
                headers = {}
            productType = self.safe_string(params, 'productType')
            if (productType != 'SCOIN-FUTURES') and (productType != 'SUSDT-FUTURES') and (productType != 'SUSDC-FUTURES'):
                headers['PAPTRADING'] = '1'
        return {'url': url, 'method': method, 'body': body, 'headers': headers}