(Delphi ActiveX) Shippo Generate a Return Label

Demonstrates how to generate a pay-on-use return label.

For more information, see https://goshippo.com/docs/return-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;

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/shipments/ \
//     -H "Authorization: ShippoToken <API_Token>" \
//     -d address_from="d799c2679e644279b59fe661ac8fa488" \
//     -d address_to="42236bcf36214f62bcc6d7f12f02a849" \
//     -d parcels=["7df2ecf8b4224763ab7c71fae7ec8274"] \
//     -d shipment_date="2013-12-03T12:00:00.000Z" \
//     -d extra='{ "is_return": true}' \
//     -d async=false

req := TChilkatHttpRequest.Create(Self);
req.HttpVerb := 'POST';
req.Path := '/shipments/';
req.ContentType := 'application/x-www-form-urlencoded';
req.AddParam('address_from','d799c2679e644279b59fe661ac8fa488');
req.AddParam('address_to','42236bcf36214f62bcc6d7f12f02a849');
req.AddParam('parcels','["7df2ecf8b4224763ab7c71fae7ec8274"]');
req.AddParam('shipment_date','2013-12-03T12:00:00.000Z');
req.AddParam('extra','''{ "is_return": true}''');
req.AddParam('async','false');

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

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

// {}

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