(Delphi ActiveX) Twilio Send SMS (using Chilkat HTTP)

Send an outgoing SMS message.

For more information, see https://www.twilio.com/docs/sms/api/message-resource#create-a-message-resource

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;
account_sid: WideString;
api_version: WideString;
body: WideString;
date_created: WideString;
date_sent: WideString;
date_updated: WideString;
direction: WideString;
error_code: WideString;
error_message: WideString;
from: WideString;
messaging_service_sid: WideString;
num_media: WideString;
num_segments: WideString;
price: WideString;
price_unit: WideString;
sid: WideString;
status: WideString;
subresource_urisMedia: WideString;
v_to: WideString;
uri: 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');

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)

// {
//   "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

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