(.NET Core C#) Twilio Send MMS (using Chilkat HTTP)

Send an outgoing MMS message. The only difference with MMS (as compared with SMS) is that a MediaUrl parameter is added to the POST. This means your image must be accessible on the web -- the Twilio server must be able to download the image from the URL you provide to include it in the MMS mesage to be sent.

Also, see Twilio MMS for more information about MMS.

For more information, see https://support.twilio.com/hc/en-us/articles/223179808-Sending-and-receiving-MMS-messages

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

Chilkat.Http http = new Chilkat.Http();
bool success;

// 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

http.Login = "TWILIO_ACCOUNT_SID";
http.Password = "TWILIO_AUTH_TOKEN";

Chilkat.HttpRequest req = new Chilkat.HttpRequest();
req.HttpVerb = "POST";
req.Path = "/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json";
req.ContentType = "application/x-www-form-urlencoded";
req.AddParam("From","+15005550006");
req.AddParam("Body","body");
req.AddParam("To","+15005551212");
req.AddParam("MediaUrl","https://www.chilkatsoft.com/images/starfish.jpg");

Chilkat.HttpResponse resp = http.PostUrlEncoded("https://api.twilio.com/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json",req);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Chilkat.StringBuilder sbResponseBody = new Chilkat.StringBuilder();
resp.GetBodySb(sbResponseBody);
Chilkat.JsonObject jResp = new Chilkat.JsonObject();
jResp.LoadSb(sbResponseBody);
jResp.EmitCompact = false;

Debug.WriteLine("Response Body:");
Debug.WriteLine(jResp.Emit());

// A 201 status code indicates success.
int respStatusCode = resp.StatusCode;
Debug.WriteLine("Response Status Code = " + Convert.ToString(respStatusCode));
if (respStatusCode >= 400) {
    Debug.WriteLine("Response Header:");
    Debug.WriteLine(resp.Header);
    Debug.WriteLine("Failed.");

    return;
}

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

// {
//   "sid": "SM477111c301794f14b11eca5eefd5c350",
//   "date_created": "Tue, 18 Aug 2020 15:04:47 +0000",
//   "date_updated": "Tue, 18 Aug 2020 15:04:47 +0000",
//   "date_sent": null,
//   "account_sid": "AC2e9b6bc0f51133df24926f07341d3824",
//   "to": "+15005551212",
//   "from": "+15005550006",
//   "messaging_service_sid": null,
//   "body": "body",
//   "status": "queued",
//   "num_segments": "1",
//   "num_media": "0",
//   "direction": "outbound-api",
//   "api_version": "2010-04-01",
//   "price": null,
//   "price_unit": "USD",
//   "error_code": null,
//   "error_message": null,
//   "uri": "/2010-04-01/Accounts/AC2e9b6bc0f51133df24926f07341d3824/Messages/SM477111c301794f14b11eca5eefd5c350.json",
//   "subresource_uris": {
//     "media": "/2010-04-01/Accounts/AC2e9b6bc0f51133df24926f07341d3824/Messages/SM477111c301794f14b11eca5eefd5c350/Media.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.DtObj date_created = new Chilkat.DtObj();
Chilkat.DtObj date_updated = new Chilkat.DtObj();
Chilkat.DtObj date_sent = new Chilkat.DtObj();

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