Sample code for 30+ languages & platforms
C

Twilio Send SMS (using Chilkat HTTP)

See more Twilio Examples

Send an outgoing SMS message.

Chilkat C Downloads

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

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttp http;
    HCkHttpRequest req;
    HCkHttpResponse resp;
    HCkStringBuilder sbResponseBody;
    HCkJsonObject jResp;
    int respStatusCode;
    const char *account_sid;
    const char *api_version;
    const char *body;
    const char *date_created;
    const char *date_sent;
    const char *date_updated;
    const char *direction;
    const char *error_code;
    const char *error_message;
    const char *from;
    const char *messaging_service_sid;
    const char *num_media;
    const char *num_segments;
    const char *price;
    const char *price_unit;
    const char *sid;
    const char *status;
    const char *subresource_urisMedia;
    const char *v_to;
    const char *uri;

    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:

    // (See information about using test credentials and phone numbers:  https://www.twilio.com/docs/iam/test-credentials)

    // curl -X POST https://api.twilio.com/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json \
    // --data-urlencode "From=+15005550006" \
    // --data-urlencode "Body=body" \
    // --data-urlencode "To=+15005551212" \
    // -u TWILIO_ACCOUNT_SID:TWILIO_AUTH_TOKEN

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

    CkHttp_putLogin(http,"TWILIO_ACCOUNT_SID");
    CkHttp_putPassword(http,"TWILIO_AUTH_TOKEN");

    req = CkHttpRequest_Create();
    CkHttpRequest_putHttpVerb(req,"POST");
    CkHttpRequest_putPath(req,"/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json");
    CkHttpRequest_putContentType(req,"application/x-www-form-urlencoded");
    CkHttpRequest_AddParam(req,"From","+15005550006");
    CkHttpRequest_AddParam(req,"Body","body");
    CkHttpRequest_AddParam(req,"To","+15005551212");

    resp = CkHttpResponse_Create();
    success = CkHttp_HttpReq(http,"https://api.twilio.com/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json",req,resp);
    if (success == FALSE) {
        printf("%s\n",CkHttp_lastErrorText(http));
        CkHttp_Dispose(http);
        CkHttpRequest_Dispose(req);
        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));

    // A 201 status code indicates success.
    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);
        CkHttpRequest_Dispose(req);
        CkHttpResponse_Dispose(resp);
        CkStringBuilder_Dispose(sbResponseBody);
        CkJsonObject_Dispose(jResp);
        return;
    }

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

    // {
    //   "account_sid": "ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
    //   "api_version": "2010-04-01",
    //   "body": "body",
    //   "date_created": "Thu, 30 Jul 2015 20:12:31 +0000",
    //   "date_sent": "Thu, 30 Jul 2015 20:12:33 +0000",
    //   "date_updated": "Thu, 30 Jul 2015 20:12:33 +0000",
    //   "direction": "outbound-api",
    //   "error_code": null,
    //   "error_message": null,
    //   "from": "+15017122661",
    //   "messaging_service_sid": "MGXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
    //   "num_media": "0",
    //   "num_segments": "1",
    //   "price": null,
    //   "price_unit": null,
    //   "sid": "MMXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
    //   "status": "sent",
    //   "subresource_uris": {
    //     "media": "/2010-04-01/Accounts/ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Messages/SMXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Media.json"
    //   },
    //   "to": "+15558675310",
    //   "uri": "/2010-04-01/Accounts/ACXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX/Messages/SMXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.json"
    // }

    // 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.

    account_sid = CkJsonObject_stringOf(jResp,"account_sid");
    api_version = CkJsonObject_stringOf(jResp,"api_version");
    body = CkJsonObject_stringOf(jResp,"body");
    date_created = CkJsonObject_stringOf(jResp,"date_created");
    date_sent = CkJsonObject_stringOf(jResp,"date_sent");
    date_updated = CkJsonObject_stringOf(jResp,"date_updated");
    direction = CkJsonObject_stringOf(jResp,"direction");
    error_code = CkJsonObject_stringOf(jResp,"error_code");
    error_message = CkJsonObject_stringOf(jResp,"error_message");
    from = CkJsonObject_stringOf(jResp,"from");
    messaging_service_sid = CkJsonObject_stringOf(jResp,"messaging_service_sid");
    num_media = CkJsonObject_stringOf(jResp,"num_media");
    num_segments = CkJsonObject_stringOf(jResp,"num_segments");
    price = CkJsonObject_stringOf(jResp,"price");
    price_unit = CkJsonObject_stringOf(jResp,"price_unit");
    sid = CkJsonObject_stringOf(jResp,"sid");
    status = CkJsonObject_stringOf(jResp,"status");
    subresource_urisMedia = CkJsonObject_stringOf(jResp,"subresource_uris.media");
    v_to = CkJsonObject_stringOf(jResp,"to");
    uri = CkJsonObject_stringOf(jResp,"uri");


    CkHttp_Dispose(http);
    CkHttpRequest_Dispose(req);
    CkHttpResponse_Dispose(resp);
    CkStringBuilder_Dispose(sbResponseBody);
    CkJsonObject_Dispose(jResp);

    }