(Unicode C++) WhatsApp - Send a Text Message

Demonstrates how to use the messages endpoint to send text messages to your customers.

For more information, see https://developers.facebook.com/docs/whatsapp/api/messages/text

Chilkat C/C++ Library Downloads
MS Visual C/C++ C++ Builder Linux C/C++ Alpine Linux C/C++	MacOS C/C++ iOS C/C++ Android C/C++ MinGW C/C++

#include <CkHttpW.h>
#include <CkJsonObjectW.h>
#include <CkHttpResponseW.h>
#include <CkStringBuilderW.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;

    // Implements the following CURL command:

    // curl -X POST https://example.com/v1/messages \
    //   -H "Authorization: Bearer your-auth-token" \
    //   -d '
    // {
    //     "preview_url": false,
    //     "recipient_type": "individual",
    //     "to": "whatsapp-id-or-group-id",
    //     "type": "text",
    //     "text": {
    //         "body": "your-text-message-content"
    //     }
    // }'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

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

    // {
    //   "preview_url": false,
    //   "recipient_type": "individual",
    //   "to": "whatsapp-id-or-group-id",
    //   "type": "text",
    //   "text": {
    //     "body": "your-text-message-content"
    //   }
    // }

    CkJsonObjectW json;
    json.UpdateBool(L"preview_url",false);
    json.UpdateString(L"recipient_type",L"individual");
    json.UpdateString(L"to",L"whatsapp-id-or-group-id");
    json.UpdateString(L"type",L"text");
    json.UpdateString(L"text.body",L"your-text-message-content");

    // Adds the "Authorization: Bearer your-auth-token" header.
    http.put_AuthToken(L"your-auth-token");

    CkHttpResponseW *resp = http.PostJson3(L"https://example.com/v1/messages",L"application/json",json);
    if (http.get_LastMethodSuccess() == false) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    CkStringBuilderW sbResponseBody;
    resp->GetBodySb(sbResponseBody);
    CkJsonObjectW jResp;
    jResp.LoadSb(sbResponseBody);
    jResp.put_EmitCompact(false);

    wprintf(L"Response Body:\n");
    wprintf(L"%s\n",jResp.emit());

    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;
    }

    delete resp;

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "messages": [
    //     {
    //       "id": "gBEGkYiEB1VXAglK1ZEqA1YKPrU"
    //     }
    //   ]
    // }

    // Sample code for parsing the JSON response...
    // Use the following online tool to generate parsing code from sample JSON:
    // Generate Parsing Code from JSON

    // Chilkat functions returning "const char *" return a pointer to temporary internal memory owned and managed by Chilkat.
    // See this example explaining how this memory should be used: const char * functions.

    const wchar_t *id = 0;

    int i = 0;
    int count_i = jResp.SizeOfArray(L"messages");
    while (i < count_i) {
        jResp.put_I(i);
        id = jResp.stringOf(L"messages[i].id");
        i = i + 1;
    }
    }