(Unicode C++) WaTrend Send WhatsApp Text

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Send a WhatsApp text.

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

    // Use your actual access token instead of 555555555555555555555555555555
    CkHttpRequestW req;
    req.AddParam(L"number",L"84933313xxx");
    req.AddParam(L"type",L"text");
    req.AddParam(L"message",L"This is a test message");
    req.AddParam(L"instance_id",L"609ACF283XXXX");
    req.AddParam(L"access_token",L"555555555555555555555555555555");

    // Note: The WaTrend online documentation indicate a POST should be used.
    // However, it seems you might actually need to send a GET request.
    // It is unclear.  
    // If a GET is neeed, you would just send to the URL w/ query params like this:
    CkStringBuilderW sbUrl;
    sbUrl.Append(L"https://app.watrend.com/api/send.php?");
    sbUrl.Append(req.getUrlEncodedParams());
    const wchar_t *responseBodyStr = http.quickGetStr(sbUrl.getAsString());
    // The responseBodyStr contains the JSON response from the server..

    // If a POST is needed, then it is sent like this:
    CkHttpResponseW *resp = http.PostUrlEncoded(L"https://app.watrend.com/api/send.php",req);
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkStringBuilderW sbResponseBody;
    resp->GetBodySb(sbResponseBody);

    int respStatusCode = resp->get_StatusCode();
    wprintf(L"Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",resp->header());
        wprintf(L"Failed.\n");
        delete resp;
        return;
    }

    wprintf(L"%s\n",resp->bodyStr());

    // Both success and failed responses use 200 status code.

    // A success response contains this JSON in the response body:
    // {"status":"success", ... }

    // A failed response will contain something like this:
    // {"status":"error","message":"License Invalidated"}

    CkJsonObjectW jResp;
    jResp.LoadSb(sbResponseBody);

    const wchar_t *status = jResp.stringOf(L"status");
    wprintf(L"status: %s\n",status);

    delete resp;
    }