(C++) Amazon Translate Text

Demonstrates how to use the AWS Translate service to translate text from one language to another.

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#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkJsonObject.h>
#include <CkStringBuilder.h>

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

    CkRest rest;
    bool success;

    CkAuthAws authAws;
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    authAws.put_Region("us-west-2");
    authAws.put_ServiceName("translate");
    rest.SetAuthAws(authAws);

    // URL: https://translate.us-west-2.amazonaws.com/
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    success = rest.Connect("translate.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);
    if (success != true) {
        std::cout << "ConnectFailReason: " << rest.get_ConnectFailReason() << "\r\n";
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    // Translate text from English to German
    CkJsonObject json;
    json.UpdateString("SourceLanguageCode","en");
    json.UpdateString("TargetLanguageCode","de");
    json.UpdateString("Text","This is the text to be translated");

    rest.AddHeader("Content-Type","application/x-amz-json-1.1");
    rest.AddHeader("X-Amz-Target","AWSShineFrontendService_20170701.TranslateText");

    CkStringBuilder sbRequestBody;
    json.EmitSb(sbRequestBody);
    CkStringBuilder sbResponseBody;
    success = rest.FullRequestSb("POST","/",sbRequestBody,sbResponseBody);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        std::cout << "Response Status Code = " << respStatusCode << "\r\n";
        std::cout << "Response Header:" << "\r\n";
        std::cout << rest.responseHeader() << "\r\n";
        std::cout << "Response Body:" << "\r\n";
        std::cout << sbResponseBody.getAsString() << "\r\n";
        return;
    }

    CkJsonObject jsonResponse;
    jsonResponse.LoadSb(sbResponseBody);
    jsonResponse.put_EmitCompact(false);

    std::cout << jsonResponse.emit() << "\r\n";

    // {
    //   "SourceLanguageCode": "en",
    //   "TargetLanguageCode": "de",
    //   "TranslatedText": "Dies ist der zu bersetzende Text"
    // }

    std::cout << jsonResponse.stringOf("TranslatedText") << "\r\n";
    }