(C++) Bitfinex v2 REST Submit Order

Submit an order.

For more information, see https://docs.bitfinex.com/reference#rest-auth-submit-order

Chilkat C/C++ Library Downloads
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#include <CkHttp.h>
#include <CkCrypt2.h>
#include <CkDateTime.h>
#include <CkStringBuilder.h>
#include <CkJsonObject.h>
#include <CkHttpResponse.h>

void ChilkatSample(void)
    {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttp http;
    bool success;

    CkCrypt2 crypt;

    const char *apiPath = "v2/auth/w/order/submit";
    const char *apiKey = "MY_API_KEY";
    const char *apiSecret = "MY_API_SECRET";

    CkDateTime dt;
    dt.SetFromCurrentSystemTime();

    CkStringBuilder sbNonce;
    sbNonce.Append(dt.getAsUnixTimeStr(false));
    sbNonce.Append("000");
    const char *nonce = sbNonce.getAsString();

    CkJsonObject json;
    json.UpdateString("type","LIMIT");
    json.UpdateString("symbol","tBTCUSD");
    json.UpdateString("price","15");
    json.UpdateString("amount","0.001");
    json.UpdateInt("flags",0);
    const char *body = json.emit();

    CkStringBuilder sbSignature;
    sbSignature.Append("/api/");
    sbSignature.Append(apiPath);
    sbSignature.Append(nonce);
    sbSignature.Append(body);

    crypt.put_EncodingMode("hex_lower");
    crypt.put_HashAlgorithm("sha384");
    crypt.put_MacAlgorithm("hmac");
    crypt.SetMacKeyString(apiSecret);

    const char *sig = crypt.macStringENC(sbSignature.getAsString());

    http.SetRequestHeader("bfx-apikey",apiKey);
    http.SetRequestHeader("bfx-signature",sig);
    http.SetRequestHeader("bfx-nonce",nonce);

    CkHttpResponse *resp = http.PostJson2("https://api.bitfinex.com/v2/auth/w/order/submit","application/json",body);
    if (http.get_LastMethodSuccess() == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Response body:" << "\r\n";
    std::cout << resp->bodyStr() << "\r\n";

    delete resp;
    }