(Delphi ActiveX) VoiceBase -- Compound Expression Search

Demonstrates how to do a VoiceBase compound expression search. See VoiceBase Search for more details about Search.

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
accessToken: WideString;
http: TChilkatHttp;
req: TChilkatHttpRequest;
sbAuth: TChilkatStringBuilder;
resp: IChilkatHttpResponse;
json: TChilkatJsonObject;
dt: TCkDateTime;
mediaCount: Integer;
i: Integer;
dateCreated: WideString;
localTime: Integer;
dtObj: IDtObj;

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

// Insert your Bearer token here:
accessToken := 'VOICEBASE_TOKEN';

http := TChilkatHttp.Create(Self);

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'GET';
req.Path := '/v2-beta/media';

// Add the access (bearer) token to the request, which is a header
// having the following format:
// Authorization: Bearer <userAccessToken>
sbAuth := TChilkatStringBuilder.Create(Self);
sbAuth.Append('Bearer ');
sbAuth.Append(accessToken);
req.AddHeader('Authorization',sbAuth.GetAsString());

// Search for media containing the terms any of the terms "test", "number", or "three"
req.AddParam('query','"test" OR "number" OR "three"');

resp := http.SynchronousRequest('apis.voicebase.com',443,1,req.ControlInterface);
if (http.LastMethodSuccess <> 1) then
  begin
    Memo1.Lines.Add(http.LastErrorText);
    Exit;
  end;

// Examine the response status code and body.
Memo1.Lines.Add('Response status code = ' + IntToStr(resp.StatusCode));

// The response should be JSON, even if an error.
json := TChilkatJsonObject.Create(Self);
json.Load(resp.BodyStr);
json.EmitCompact := 0;

// A successful response will have a status code = 200
if (resp.StatusCode <> 200) then
  begin
    Memo1.Lines.Add('Failed.');
  end
else
  begin
    Memo1.Lines.Add('mediaId: ' + json.StringOf('mediaId'));
    Memo1.Lines.Add('href: ' + json.StringOf('_links.self.href'));
    Memo1.Lines.Add('status: ' + json.StringOf('status'));
    Memo1.Lines.Add('Success.');
  end;

// See the sample JSON response below..

// Iterate over the JSON like this:
dt := TCkDateTime.Create(Self);
mediaCount := json.SizeOfArray('media');
i := 0;
while i < mediaCount do
  begin
    json.I := i;

    Memo1.Lines.Add('-- ' + IntToStr(i) + ' --');
    Memo1.Lines.Add('  mediaId: ' + json.StringOf('media[i].mediaId'));
    Memo1.Lines.Add('  status: ' + json.StringOf('media[i].status'));
    Memo1.Lines.Add('  contentType: ' + json.StringOf('media[i].metadata.contentType'));
    Memo1.Lines.Add('  milliseconds: ' + json.StringOf('media[i].metadata.length.milliseconds'));
    Memo1.Lines.Add('  descriptive: ' + json.StringOf('media[i].metadata.length.descriptive'));
    dateCreated := json.StringOf('media[i].dateCreated');
    dt.SetFromTimestamp(dateCreated);

    localTime := 1;
    dtObj := dt.GetDtObj(localTime);
    Memo1.Lines.Add('  ' + IntToStr(dtObj.Month) + '/' + IntToStr(dtObj.Day) + '  ' + IntToStr(dtObj.Hour) + ':'
         + IntToStr(dtObj.Minute));

    i := i + 1;
  end;

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

// A sample JSON response:

// { 
//   "_links": { 
//     "self": { 
//       "href": "/v2-beta/media"
//     }
//   },
//   "media": [
//     { 
//       "mediaId": "26063536-FFFF-4020-93ba-0878112d834b",
//       "status": "finished",
//       "metadata": { 
//         "contentType": "audio/x-wav",
//         "length": { 
//           "milliseconds": 85141,
//           "descriptive": "85.0 sec"
//         }
//       },
//       "dateCreated": "2017-01-19T16:49:32.000Z"
//     },
//     { 
//       "mediaId": "8163fbbc-FFFF-4794-aa95-045420bb321d",
//       "status": "finished",
//       "metadata": { 
//         "contentType": "audio/x-wav",
//         "length": { 
//           "milliseconds": 65342,
//           "descriptive": "65.0 sec"
//         }
//       },
//       "dateCreated": "2017-01-19T20:08:49.000Z"
//     },
// ...
// ...
//     { 
//       "mediaId": "b01e27be-FFFF-4b62-8802-6dc66a75c4d3",
//       "status": "finished",
//       "metadata": { 
//         "contentType": "audio/x-wav",
//         "length": { 
//           "milliseconds": 11581,
//           "descriptive": "11.0 sec"
//         }
//       },
//       "dateCreated": "2017-02-06T20:55:43.000Z"
//     }
//   ]
// }
end;