C

WhatsApp - Send a Previously Uploaded Media Message

Demonstrates how to send a media message where the media content was previously uploaded. C

#include <C_CkHttp.h>
#include <C_CkJsonObject.h>
#include <C_CkHttpResponse.h>
#include <C_CkStringBuilder.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttp http;
    HCkJsonObject json;
    HCkHttpResponse resp;
    HCkStringBuilder sbResponseBody;
    HCkJsonObject jResp;
    int respStatusCode;
    const char *id;
    int i;
    int count_i;

    success = FALSE;

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

    http = CkHttp_Create();

    //  Implements the following CURL command:

    //  curl -X POST https://example.com/v1/messages \
    //    -H "Authorization: Bearer your-auth-token" \
    //    -d '
    //  {
    //      "recipient_type": "individual-or-group",
    //      "to": "whatsapp-id-or-group-id",
    //      "type": "image",
    //      "image": {
    //       "id": "your-media-id",
    //        "caption": "your-image-caption"
    //      }
    //  }'

    //  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.

    //  {
    //    "recipient_type": "individual-or-group",
    //    "to": "whatsapp-id-or-group-id",
    //    "type": "image",
    //    "image": {
    //      "id": "your-media-id",
    //      "caption": "your-image-caption"
    //    }
    //  }

    json = CkJsonObject_Create();
    CkJsonObject_UpdateString(json,"recipient_type","individual-or-group");
    CkJsonObject_UpdateString(json,"to","whatsapp-id-or-group-id");
    CkJsonObject_UpdateString(json,"type","image");
    CkJsonObject_UpdateString(json,"image.id","your-media-id");
    CkJsonObject_UpdateString(json,"image.caption","your-image-caption");

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

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpJson(http,"POST","https://example.com/v1/messages",json,"application/json",resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        CkHttpResponse_Dispose(resp);
        return;
    }

    sbResponseBody = CkStringBuilder_Create();
    CkHttpResponse_GetBodySb(resp,sbResponseBody);
    jResp = CkJsonObject_Create();
    CkJsonObject_LoadSb(jResp,sbResponseBody);
    CkJsonObject_putEmitCompact(jResp,FALSE);

    printf("Response Body:\n");
    printf("%s\n",CkJsonObject_emit(jResp));

    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");
        CkHttp_Dispose(http);
        CkJsonObject_Dispose(json);
        CkHttpResponse_Dispose(resp);
        CkStringBuilder_Dispose(sbResponseBody);
        CkJsonObject_Dispose(jResp);
        return;
    }

    //  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.

    i = 0;
    count_i = CkJsonObject_SizeOfArray(jResp,"messages");
    while (i < count_i) {
        CkJsonObject_putI(jResp,i);
        id = CkJsonObject_stringOf(jResp,"messages[i].id");
        i = i + 1;
    }



    CkHttp_Dispose(http);
    CkJsonObject_Dispose(json);
    CkHttpResponse_Dispose(resp);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }