问题描述
如果我从命令行使用 CURL 执行 HTTP 请求(来自 Binance docs 的示例)
curl -H "X-MBX-APIKEY: vmpuZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A" -X POST 'https://api.binance.com/api/v3/order/test' -d 'symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559&signature=c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71'
我明白了:
{"code":-2015,"msg":"Invalid API-key,IP,or permissions for action."}
但是如果我这样做
qnetworkrequest request;
request.setRawHeader(QByteArray("X-MBX-APIKEY"),QString("vmpuZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A").toUtf8());
request.setHeader(qnetworkrequest::ContentTypeHeader,QString("application/x-www-form-urlencoded"));
request.setUrl(QUrl("https://api.binance.com/api/v3/order/test"));
QByteArray postData = "symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559&signature=c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71";
QNetworkReply* reply = m_nm.post(request,postData);
QObject::connect(reply,&QNetworkReply::finished,[this,reply,url,func]()
{
if (reply->error())
{
qDebug() << "Error: " << reply->error() << ",Message: " << reply->errorString();
});
}
else
{
const QString answer = reply->readAll();
func(answer);
}
//Ensure it is deleted after this handler is called,but not before.
//reply->deleteLater();
delete reply;
});
我收到一条错误回复,消息为 Error: 204,Message: Host requires authentication
。
使用其他 API 密钥,我使用 Bad request
获得 QNetworkReply::ProtocolInvalidOperationError
。
有什么区别?
EDIT1:
请求成功
request.setUrl(QUrl("https://httpbin.org/post"));
和相同的帖子数据,例如。
EDIT2:
"Accept-Encoding": "gzip,deflate","Accept-Language": "en-GB,*"
但不是他们。
解决方法
HTTP 401 错误代码表明请求没有被执行,因为它缺少请求资源的有效身份验证凭据,这导致 Qt 创建错误 QNetworkReply::AuthenticationRequiredError,除此之外,有关原因的信息响应正文中的错误。因此,即使出现错误,也必须检查数据。
MWE:
#include <QtNetwork>
int main(int argc,char *argv[])
{
QCoreApplication a(argc,argv);
QNetworkAccessManager m_nm;
QNetworkRequest request;
request.setRawHeader(QByteArray("X-MBX-APIKEY"),QString("vmPUZE6mv9SD5VNHk4HlWFsOr6aKE2zvsw0MuIgwCIPy6utIco14y7Ju91duEh8A").toUtf8());
request.setHeader(QNetworkRequest::ContentTypeHeader,QString("application/x-www-form-urlencoded"));
request.setUrl(QUrl("https://api.binance.com/api/v3/order/test"));
QByteArray postData = "symbol=LTCBTC&side=BUY&type=LIMIT&timeInForce=GTC&quantity=1&price=0.1&recvWindow=5000×tamp=1499827319559&signature=c8db56825ae71d6d79447849e617115f4a920fa2acdcab2b053c4b2838bd6b71";
QNetworkReply* reply = m_nm.post(request,postData);
QObject::connect(reply,&QNetworkReply::finished,[reply]()
{
const QString body = reply->readAll();
if (reply->error() == QNetworkReply::AuthenticationRequiredError){
qDebug() << "Error: " << reply->error() <<
",Message: " << reply->errorString() <<
",Code: " << reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() <<
",Description: " << body;
}
else if (reply->error() != QNetworkReply::NoError){
qDebug() << body;
}
reply->deleteLater();
QTimer::singleShot(1000,&QCoreApplication::quit);
});
return a.exec();
}
输出:
Error: QNetworkReply::AuthenticationRequiredError,Message: "Host requires authentication",Code: 401,Description: "{\"code\":-2015,\"msg\":\"Invalid API-key,IP,or permissions for action.\"}"