(Unicode C++) IBM Cloud - Text to Speech - Synthesize Audio (POST)

Synthesizes text to audio that is spoken in the specified voice. Uses a POST which allows for more text to be synthesized.

For more information, see https://cloud.ibm.com/apidocs/text-to-speech#synthesize-audio

Chilkat C/C++ Library Downloads
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#include <CkHttpW.h>
#include <CkStringBuilderW.h>
#include <CkJsonObjectW.h>
#include <CkHttpResponseW.h>

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

    CkHttpW http;
    bool success;

    http.put_Login(L"apikey");
    http.put_Password(L"my_apikey");
    http.put_BasicAuth(true);

    // Send the following request:

    // curl -X POST -u "apikey:{apikey}" 
    //    --header "Content-Type: application/json" 
    //    --header "Accept: audio/wav" 
    //    --data "{\"text\":\"When life gives you lemons, order the lobster tail.\"}" 
    //    --output lobster.wav "{url}/v1/synthesize?voice=en-US_AllisonV3Voice"

    // Use your base URL shown in the credentials web page (below your apikey)
    const wchar_t *myBaseUrl = L"https://api.us-south.text-to-speech.watson.cloud.ibm.com/instances/31941e96-7b89-4d56-8993-9cd8f18ec2d8";

    CkStringBuilderW sbUrl;
    sbUrl.Append(myBaseUrl);
    sbUrl.Append(L"/v1/synthesize?voice=en-US_AllisonV3Voice");

    http.put_Accept(L"audio/wav");

    CkJsonObjectW json;
    json.UpdateString(L"text",L"When life gives you lemons, order the lobster tail.");

    CkHttpResponseW *resp = http.PostJson3(sbUrl.getAsString(),L"application/json",json);
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    int respStatusCode = resp->get_StatusCode();
    wprintf(L"response status code = %d\n",respStatusCode);

    if (respStatusCode == 200) {
        success = resp->SaveBodyBinary(L"qa_output/lobster.wav");
        wprintf(L"Success!\n");
    }
    else {
        wprintf(L"%s\n",resp->bodyStr());
    }

    delete resp;
    }