(C++) WhatsApp Cloud API Send Message

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Demonstrates how to send a message using the WhatsApp Cloud API (Business App)

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

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

    CkHttp http;
    bool success;

    // The following JSON is sent in the request body.

    // {
    //   "messaging_product": "whatsapp",
    //   "to": "16302581871",
    //   "type": "template",
    //   "template": {
    //     "name": "hello_world",
    //     "language": {
    //       "code": "en_US"
    //     }
    //   }
    // }

    CkJsonObject json;
    json.UpdateString("messaging_product","whatsapp");
    json.UpdateString("to","15555555555");
    json.UpdateString("type","template");
    json.UpdateString("template.name","hello_world");
    json.UpdateString("template.language.code","en_US");

    http.put_AuthToken("EAANrS5....yFB9Ma");
    http.SetRequestHeader("Content-Type","application/json");

    CkHttpResponse *resp = http.PostJson3("https://graph.facebook.com/v18.0/111111111111111/messages","application/json",json);
    if (http.get_LastMethodSuccess() == false) {
        std::cout << http.lastErrorText() << "\r\n";
        return;
    }

    std::cout << resp->get_StatusCode() << "\r\n";
    std::cout << resp->bodyStr() << "\r\n";
    delete resp;

    // Here's a screenshot of our WhatsApp test app.

    // 
    }