0

我试图解决它好几个小时，但没有比这更好的了......

int main() {
    CURL *curl_handle = curl_easy_init();
    if(curl_handle) {
     
        string post_data="";
        struct curl_slist *headers=NULL;
        string command = "command=returnBalances&nonce=" + to_string(time(0));
        cout<<command<<endl;
        string Secret = "mySecretCode";
        string Sign = "Sign: "+ hmac::get_hmac(Secret, command, hmac::TypeHash::SHA512);
        cout<<Sign<<endl;
        post_data += command;
        headers = curl_slist_append(headers, "Content-Type: application/x-www-form-urlencoded");
        headers = curl_slist_append(headers, "Key: myKey");
        headers = curl_slist_append(headers, Sign.c_str());
        curl_easy_setopt(curl_handle, CURLOPT_URL, "https://poloniex.com/tradingApi");

        curl_easy_setopt(curl_handle, CURLOPT_POSTFIELDSIZE, post_data.length()+1);
        curl_easy_setopt(curl_handle, CURLOPT_POSTFIELDS, post_data.c_str());
        curl_easy_setopt(curl_handle, CURLOPT_HTTPHEADER, headers);
        curl_easy_setopt(curl_handle, CURLOPT_SSL_VERIFYPEER, false);
        curl_easy_setopt(curl_handle, CURLOPT_VERBOSE, 1L);

    }
    curl_easy_perform(curl_handle);
    curl_easy_cleanup(curl_handle);
      
    return 0;
}

这回到我身边

{"error":"Invalid command."}

我检查了 hmac 函数结果抛出的网站，它们是相等的。有人说加

"Content-Type: application/x-www-form-urlencoded"

可以解决这个问题，但暂时不行。

控制台输出：

> POST /tradingApi HTTP/2
Host: poloniex.com
accept: */*
content-type: application/x-www-form-urlencoded
key: myKey
sign: resultOfHmacFunc
content-length: 40
4

1 回答 1

0

解决方案是从 CURLOPT_POSTFIELDS 更改为 CURLOPT_COPYPOSTFIELDS

于 2020-06-25T14:22:09.167 回答