Delphi DLL

VoiceBase -- Compound Expression Search

See more VoiceBase Examples

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Http, CkDateTime, DtObj, HttpResponse, StringBuilder, JsonObject, HttpRequest;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
accessToken: PWideChar;
http: HCkHttp;
req: HCkHttpRequest;
sbAuth: HCkStringBuilder;
resp: HCkHttpResponse;
json: HCkJsonObject;
dt: HCkDateTime;
dtObj: HCkDtObj;
mediaCount: Integer;
i: Integer;
dateCreated: PWideChar;
localTime: Boolean;

begin
success := False;

// 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 := CkHttp_Create();

req := CkHttpRequest_Create();
CkHttpRequest_putHttpVerb(req,'GET');
CkHttpRequest_putPath(req,'/v2-beta/media');

// Add the access (bearer) token to the request, which is a header
// having the following format:
// Authorization: Bearer <userAccessToken>
sbAuth := CkStringBuilder_Create();
CkStringBuilder_Append(sbAuth,'Bearer ');
CkStringBuilder_Append(sbAuth,accessToken);
CkHttpRequest_AddHeader(req,'Authorization',CkStringBuilder__getAsString(sbAuth));

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

resp := CkHttpResponse_Create();
success := CkHttp_HttpSReq(http,'apis.voicebase.com',443,True,req,resp);
if (success = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

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

// The response should be JSON, even if an error.
json := CkJsonObject_Create();
CkJsonObject_Load(json,CkHttpResponse__bodyStr(resp));
CkJsonObject_putEmitCompact(json,False);

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

// See the sample JSON response below..

// Iterate over the JSON like this:
dt := CkDateTime_Create();
dtObj := CkDtObj_Create();

mediaCount := CkJsonObject_SizeOfArray(json,'media');
i := 0;
while i < mediaCount do
  begin
    CkJsonObject_putI(json,i);

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

    localTime := True;
    CkDateTime_ToDtObj(dt,localTime,dtObj);

    Memo1.Lines.Add('  ' + IntToStr(CkDtObj_getMonth(dtObj)) + '/' + IntToStr(CkDtObj_getDay(dtObj)) + '  ' + IntToStr(CkDtObj_getHour(dtObj))
         + ':' + IntToStr(CkDtObj_getMinute(dtObj)));

    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"
//     }
//   ]
// }

CkHttp_Dispose(http);
CkHttpRequest_Dispose(req);
CkStringBuilder_Dispose(sbAuth);
CkHttpResponse_Dispose(resp);
CkJsonObject_Dispose(json);
CkDateTime_Dispose(dt);
CkDtObj_Dispose(dtObj);

end;