問(wèn)題描述

因?yàn)槟壳笆褂玫氖悄M賬戶連接api，因此受到限制，api的account_token只能用于獲取價(jià)格，不能用于下單，所以我希望通過(guò)模擬登錄網(wǎng)頁(yè)版交易平臺(tái)，獲取可用于下單的session_token，但是發(fā)現(xiàn)有兩個(gè)url，一個(gè)是表面上的url，另一個(gè)是提交用戶名和密碼的url，我不知道應(yīng)該用那個(gè)url，另外無(wú)論我用哪一個(gè)url，都會(huì)報(bào)錯(cuò)ValueError: Expecting value: line 1 column 1 (char 0)，這好像是和utf-8有關(guān)，請(qǐng)大家?guī)兔Γx謝程序：

import requestsimport jsonurl = 'https://trade.oanda.com/' #另一個(gè)url:'https://fxgame-webapi.oanda.com/v1/user/login.json'username = ’cawa11’password = ’1122334455’params = {’username’:username,’password’:password}headers = {’Connection’: ’Keep-Alive’, ’Accept-Encoding’: ’gzip,deflate’, ’charset’:’utf-8’, ’User-Agent’:’Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36’}r = requests.get(url,headers = headers, params=params)print(r.json())

報(bào)錯(cuò)：

Traceback (most recent call last): File 'C:UserslenovoDesktopoo.py', line 15, in <module> print(r.json()) File 'C:Python34libsite-packagesrequests-2.9.1-py3.4.eggrequestsmodels.py', line 808, in json return complexjson.loads(self.text, **kwargs) File 'C:Python34libjson__init__.py', line 318, in loads return _default_decoder.decode(s) File 'C:Python34libjsondecoder.py', line 343, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end()) File 'C:Python34libjsondecoder.py', line 361, in raw_decode raise ValueError(errmsg('Expecting value', s, err.value)) from NoneValueError: Expecting value: line 1 column 1 (char 0)

問(wèn)題解答

https://fxgame-webapi.oanda.com/v1/user/login.json?api_key=d39400e6d2f3c11a&password=1122334455&username=cawa11