(Delphi DLL) 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 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, HttpRequest, HttpResponse, StringBuilder, JsonObject;

...

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

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

http := CkHttp_Create();

// 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 := CkHttpRequest_Create();
CkHttpRequest_putHttpVerb(req,'POST');
CkHttpRequest_putPath(req,'/shipments/');
CkHttpRequest_putContentType(req,'application/x-www-form-urlencoded');
CkHttpRequest_AddParam(req,'address_from','d799c2679e644279b59fe661ac8fa488');
CkHttpRequest_AddParam(req,'address_to','42236bcf36214f62bcc6d7f12f02a849');
CkHttpRequest_AddParam(req,'parcels','["7df2ecf8b4224763ab7c71fae7ec8274"]');
CkHttpRequest_AddParam(req,'shipment_date','2013-12-03T12:00:00.000Z');
CkHttpRequest_AddParam(req,'extra','''{ "is_return": true}''');
CkHttpRequest_AddParam(req,'async','false');

CkHttpRequest_AddHeader(req,'Authorization','ShippoToken <API_Token>');

resp := CkHttp_PostUrlEncoded(http,'https://api.goshippo.com/shipments/',req);
if (CkHttp_getLastMethodSuccess(http) = False) then
  begin
    Memo1.Lines.Add(CkHttp__lastErrorText(http));
    Exit;
  end;

sbResponseBody := CkStringBuilder_Create();
CkHttpResponse_GetBodySb(resp,sbResponseBody);
jResp := CkJsonObject_Create();
CkJsonObject_LoadSb(jResp,sbResponseBody);
CkJsonObject_putEmitCompact(jResp,False);

Memo1.Lines.Add('Response Body:');
Memo1.Lines.Add(CkJsonObject__emit(jResp));

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;
CkHttpResponse_Dispose(resp);

// 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

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

end;