(C) WaTrend Send WhatsApp Text

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Send a WhatsApp text.

Chilkat C/C++ Library Downloads
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#include <C_CkHttp.h>
#include <C_CkHttpRequest.h>
#include <C_CkStringBuilder.h>
#include <C_CkHttpResponse.h>
#include <C_CkJsonObject.h>

void ChilkatSample(void)
    {
    HCkHttp http;
    BOOL success;
    HCkHttpRequest req;
    HCkStringBuilder sbUrl;
    const char *responseBodyStr;
    HCkHttpResponse resp;
    HCkStringBuilder sbResponseBody;
    int respStatusCode;
    HCkJsonObject jResp;
    const char *status;

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

    http = CkHttp_Create();

    // Use your actual access token instead of 555555555555555555555555555555
    req = CkHttpRequest_Create();
    CkHttpRequest_AddParam(req,"number","84933313xxx");
    CkHttpRequest_AddParam(req,"type","text");
    CkHttpRequest_AddParam(req,"message","This is a test message");
    CkHttpRequest_AddParam(req,"instance_id","609ACF283XXXX");
    CkHttpRequest_AddParam(req,"access_token","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:
    sbUrl = CkStringBuilder_Create();
    CkStringBuilder_Append(sbUrl,"https://app.watrend.com/api/send.php?");
    CkStringBuilder_Append(sbUrl,CkHttpRequest_getUrlEncodedParams(req));
    responseBodyStr = CkHttp_quickGetStr(http,CkStringBuilder_getAsString(sbUrl));
    // The responseBodyStr contains the JSON response from the server..

    // If a POST is needed, then it is sent like this:
    resp = CkHttp_PostUrlEncoded(http,"https://app.watrend.com/api/send.php",req);
    if (CkHttp_getLastMethodSuccess(http) == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkHttpRequest_Dispose(req);
        CkStringBuilder_Dispose(sbUrl);
        return;
    }

    sbResponseBody = CkStringBuilder_Create();
    CkHttpResponse_GetBodySb(resp,sbResponseBody);

    respStatusCode = CkHttpResponse_getStatusCode(resp);
    printf("Response Status Code = %d\n",respStatusCode);
    if (respStatusCode >= 400) {
        printf("Response Header:\n");
        printf("%s\n",CkHttpResponse_header(resp));
        printf("Failed.\n");
        CkHttpResponse_Dispose(resp);
        CkHttp_Dispose(http);
        CkHttpRequest_Dispose(req);
        CkStringBuilder_Dispose(sbUrl);
        CkStringBuilder_Dispose(sbResponseBody);
        return;
    }

    printf("%s\n",CkHttpResponse_bodyStr(resp));

    // 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"}

    jResp = CkJsonObject_Create();
    CkJsonObject_LoadSb(jResp,sbResponseBody);

    status = CkJsonObject_stringOf(jResp,"status");
    printf("status: %s\n",status);

    CkHttpResponse_Dispose(resp);


    CkHttp_Dispose(http);
    CkHttpRequest_Dispose(req);
    CkStringBuilder_Dispose(sbUrl);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }