(Delphi DLL) Twilio: Send SMS using Basic Authentication

Demonstrates how to use Twilio to send an SMS message using Basic authentication.

For more information, see https://www.twilio.com/docs/sms/send-messages

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

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

...

procedure TForm1.Button1Click(Sender: TObject);
var
rest: HCkRest;
success: Boolean;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
responseJson: PWideChar;
json: HCkJsonObject;

begin
// Demonstrates how to use Basic Authentication in a REST API call for Twilio.
// Sends an SMS text message..

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

rest := CkRest_Create();

// Use Basic Authentication.
// Your Twilio Account SID is the username.
// Your Twilio Auth Token is the password.
success := CkRest_SetAuthBasic(rest,'TWILIO_ACCOUNT_SID','TWILIO_AUTH_TOKEN');

// Make the initial connection (without sending a request yet) to Twilio.
bTls := True;
port := 443;
bAutoReconnect := True;
success := CkRest_Connect(rest,'api.twilio.com',port,bTls,bAutoReconnect);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// Provide the information for the SMS text message:
success := CkRest_AddQueryParam(rest,'To','+16518675309');
success := CkRest_AddQueryParam(rest,'From','+15005550006');
success := CkRest_AddQueryParam(rest,'Body','Hey Jenny! Good luck on the bar exam!');
success := CkRest_AddQueryParam(rest,'MediaUrl','http://farm2.static.flickr.com/1075/1404618563_3ed9a44a3a.jpg');

// Send the SMS text message.
// Your Twilio Account SID is part of the URI path:
responseJson := CkRest__fullRequestFormUrlEncoded(rest,'POST','/2010-04-01/Accounts/TWILIO_ACCOUNT_SID/Messages.json');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// When successful, the response status code will equal 201.
if (CkRest_getResponseStatusCode(rest) <> 201) then
  begin
    // Examine the request/response to see what happened.
    Memo1.Lines.Add('response status code = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('response status text = ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('response header: ' + CkRest__responseHeader(rest));
    Memo1.Lines.Add('response body (if any): ' + responseJson);
    Memo1.Lines.Add('---');
    Memo1.Lines.Add('LastRequestStartLine: ' + CkRest__lastRequestStartLine(rest));
    Memo1.Lines.Add('LastRequestHeader: ' + CkRest__lastRequestHeader(rest));
    Exit;
  end;

// The response is JSON.  We'll show how to get a few bits of information from it.
// A full sample JSON response is shown below..

json := CkJsonObject_Create();
CkJsonObject_putEmitCompact(json,False);
success := CkJsonObject_Load(json,responseJson);

// First show the entire JSON.
Memo1.Lines.Add(CkJsonObject__emit(json));

// Now get some individual pieces of information:
Memo1.Lines.Add('sid: ' + CkJsonObject__stringOf(json,'sid'));
Memo1.Lines.Add('body: ' + CkJsonObject__stringOf(json,'body'));
Memo1.Lines.Add('media: ' + CkJsonObject__stringOf(json,'subresource_uris.media'));

Memo1.Lines.Add('Success.');

// Sample JSON response:

// {
//   "sid": "MM97ecfd43e9f24e99b0c2c6ee016949e3",
//   "date_created": null,
//   "date_updated": null,
//   "date_sent": null,
//   "account_sid": "112e1111e0151133d11112101111d1111",
//   "to": "+16518675309",
//   "from": "+15005550006",
//   "messaging_service_sid": null,
//   "body": "Sent from your Twilio trial account - Hey Jenny! Good luck on the bar exam!",
//   "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/MM97ecfd43e9f24e99b0c2c6ee016949e3.json",
//   "subresource_uris": {
//     "media": "/2010-04-01/Accounts/AC2e9b6bc0f51133df24926f07341d3824/Messages/MM97ecfd43e9f24e99b0c2c6ee016949e3/Media.json"
//   }
// }

CkRest_Dispose(rest);
CkJsonObject_Dispose(json);

end;