(Delphi ActiveX) Shippo Create Transaction Object

Creates a Transaction object that represents a shipping label purchase and is based on the shipping rate.

For more information, see https://goshippo.com/docs/shipping-labels/

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;
object_state: WideString;
status: WideString;
object_created: WideString;
object_updated: WideString;
object_id: WideString;
object_owner: WideString;
test: Integer;
rate: WideString;
tracking_number: WideString;
tracking_status: WideString;
eta: WideString;
tracking_url_provider: WideString;
label_url: WideString;
commercial_invoice_url: WideString;
order: WideString;
metadata: WideString;
parcel: WideString;
i: Integer;
count_i: Integer;

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:

// curl https://api.goshippo.com/transactions \
//     -H "Authorization: ShippoToken <API_TOKEN>" \
//     -d rate="478fb066930e4e3195a3686f7ea5b612"
//     -d label_file_type="PDF"
//     -d async=false

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.Path := '/transactions';
req.ContentType := 'application/x-www-form-urlencoded';
req.AddParam('rate','478fb066930e4e3195a3686f7ea5b612');
req.AddParam('label_file_type','PDF');
req.AddParam('async','false');

req.AddHeader('Authorization','ShippoToken <API_TOKEN>');

resp := http.PostUrlEncoded('https://api.goshippo.com/transactions',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());

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)

// {
//   "object_state": "VALID",
//   "status": "SUCCESS",
//   "object_created": "2019-06-28T18:04:08.679Z",
//   "object_updated": "2019-06-28T18:04:10.516Z",
//   "object_id": "6178e155da304f10aa4b4271fdca84fb",
//   "object_owner": "admin@chilkatsoft.com",
//   "test": true,
//   "rate": "dd7556c284e8444294d2ab7099e662d2",
//   "tracking_number": "92701902416755000000000015",
//   "tracking_status": "UNKNOWN",
//   "eta": null,
//   "tracking_url_provider": "https://tools.usps.com/go/TrackConfirmAction_input?origTrackNum=92701902416755000000000015",
//   "label_url": "https://shippo-delivery-east.s3.amazonaws.com/6178e155da304f10aa4b4271fdca84fb.pdf?Signature=1LU0Qf11nQJGei%2FeLZr%2BQ5EwJS4%3D&Expires=1593281050&AWSAccessKeyId=AKIAJGLCC5MYLLWIG42A",
//   "commercial_invoice_url": null,
//   "messages": [
//   ],
//   "order": null,
//   "metadata": "",
//   "parcel": "5af766ff15684a4186b0e3c833348fac",
//   "billing": {
//     "payments": [
//     ]
//   }
// }

// Sample code for parsing the JSON response...
// Use the following online tool to generate parsing code from sample JSON:
// Generate Parsing Code from JSON

object_state := jResp.StringOf('object_state');
status := jResp.StringOf('status');
object_created := jResp.StringOf('object_created');
object_updated := jResp.StringOf('object_updated');
object_id := jResp.StringOf('object_id');
object_owner := jResp.StringOf('object_owner');
test := jResp.BoolOf('test');
rate := jResp.StringOf('rate');
tracking_number := jResp.StringOf('tracking_number');
tracking_status := jResp.StringOf('tracking_status');
eta := jResp.StringOf('eta');
tracking_url_provider := jResp.StringOf('tracking_url_provider');
label_url := jResp.StringOf('label_url');
commercial_invoice_url := jResp.StringOf('commercial_invoice_url');
order := jResp.StringOf('order');
metadata := jResp.StringOf('metadata');
parcel := jResp.StringOf('parcel');
i := 0;
count_i := jResp.SizeOfArray('messages');
while i < count_i do
  begin
    jResp.I := i;
    i := i + 1;
  end;

i := 0;
count_i := jResp.SizeOfArray('billing.payments');
while i < count_i do
  begin
    jResp.I := i;
    i := i + 1;
  end;
end;