(Delphi ActiveX) 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

Chilkat for Delphi Downloads Chilkat ActiveX DLL for Delphi Chilkat non-ActiveX DLL for Delphi * The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: TChilkatHttp;
success: Integer;
req: TChilkatHttpRequest;
resp: IChilkatHttpResponse;
sbResponseBody: TChilkatStringBuilder;
jResp: TChilkatJsonObject;
respStatusCode: Integer;
date_created: TDtObj;
date_updated: TDtObj;
date_sent: TDtObj;
sid: WideString;
account_sid: WideString;
v_to: WideString;
from: WideString;
messaging_service_sid: WideString;
body: WideString;
status: WideString;
num_segments: WideString;
num_media: WideString;
direction: WideString;
api_version: WideString;
price: WideString;
price_unit: WideString;
error_code: WideString;
error_message: WideString;
uri: WideString;
subresource_urisMedia: WideString;

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

http := TChilkatHttp.Create(Self);

// 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';

req := TChilkatHttpRequest.Create(Self);
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');

resp := http.PostUrlEncoded('https://api.twilio.com/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json',req.ControlInterface);
if (http.LastMethodSuccess = 0) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

sbResponseBody := TChilkatStringBuilder.Create(Self);
resp.GetBodySb(sbResponseBody.ControlInterface);
jResp := TChilkatJsonObject.Create(Self);
jResp.LoadSb(sbResponseBody.ControlInterface);
jResp.EmitCompact := 0;

Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(jResp.Emit());

// A 201 status code indicates success.
respStatusCode := resp.StatusCode;
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(resp.Header);
    Memo1.Lines.Add('Failed.');

    Exit;
  end;

// 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

date_created := TDtObj.Create(Self);
date_updated := TDtObj.Create(Self);
date_sent := TDtObj.Create(Self);

sid := jResp.StringOf('sid');
jResp.DtOf('date_created',0,date_created.ControlInterface);
jResp.DtOf('date_updated',0,date_updated.ControlInterface);
jResp.DtOf('date_sent',0,date_sent.ControlInterface);
account_sid := jResp.StringOf('account_sid');
v_to := jResp.StringOf('to');
from := jResp.StringOf('from');
messaging_service_sid := jResp.StringOf('messaging_service_sid');
body := jResp.StringOf('body');
status := jResp.StringOf('status');
num_segments := jResp.StringOf('num_segments');
num_media := jResp.StringOf('num_media');
direction := jResp.StringOf('direction');
api_version := jResp.StringOf('api_version');
price := jResp.StringOf('price');
price_unit := jResp.StringOf('price_unit');
error_code := jResp.StringOf('error_code');
error_message := jResp.StringOf('error_message');
uri := jResp.StringOf('uri');
subresource_urisMedia := jResp.StringOf('subresource_uris.media');
end;