(Delphi DLL) WaTrend Create Instance

See more WaTrend Examples

Create a new WaTrend Instance ID.

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, Http, StringBuilder, HttpResponse, JsonObject;

...

procedure TForm1.Button1Click(Sender: TObject);
var
http: HCkHttp;
success: Boolean;
resp: HCkHttpResponse;
sbResponseBody: HCkStringBuilder;
respStatusCode: Integer;
jResp: HCkJsonObject;
status: PWideChar;
instanceId: PWideChar;

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

http := CkHttp_Create();

// Use your actual access token instead of 555555555555555555555555555555
resp := CkHttp_QuickRequest(http,'GET','https://app.watrend.com/api/createinstance.php?access_token=555555555555555555555555555555');
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

sbResponseBody := CkStringBuilder_Create();
CkHttpResponse_GetBodySb(resp,sbResponseBody);

respStatusCode := CkHttpResponse_getStatusCode(resp);
Memo1.Lines.Add('Response Status Code = ' + IntToStr(respStatusCode));
if (respStatusCode >= 400) then
  begin
    Memo1.Lines.Add('Response Header:');
    Memo1.Lines.Add(CkHttpResponse__header(resp));
    Memo1.Lines.Add('Failed.');
    CkHttpResponse_Dispose(resp);
    Exit;
  end;

// Both success and failed responses use 200 status code.

// A success response contains this JSON in the response body:
// {"status":"success","message":"Instance ID generated successfully","instance_id":"638EE5A76D3AA"}

// A failed response will contain something like this:
// {"status":"error","message":"Access token does not exist"}

Memo1.Lines.Add(CkHttpResponse__bodyStr(resp));

jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);

status := CkJsonObject__stringOf(jResp,'status');
instanceId := '';
if (CkJsonObject_HasMember(jResp,'instance_id') = True) then
  begin
    instanceId := CkJsonObject__stringOf(jResp,'instance_id');
  end;

Memo1.Lines.Add('status: ' + status);
Memo1.Lines.Add('instance_id: ' + instanceId);

CkHttpResponse_Dispose(resp);

CkHttp_Dispose(http);
CkStringBuilder_Dispose(sbResponseBody);
CkJsonObject_Dispose(jResp);

end;