Delphi ActiveX

Create Restricted Data Token (RDT)

See more Amazon SP-API Examples

Returns a Restricted Data Token (RDT) for one or more restricted resources that you specify. Delphi ActiveX

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
success: Integer;
authAws: TChilkatAuthAws;
rest: TChilkatRest;
bTls: Integer;
port: Integer;
bAutoReconnect: Integer;
jsonToken: TChilkatJsonObject;
lwa_token: WideString;
json: TChilkatJsonObject;
sbRequest: TChilkatStringBuilder;
sbResponse: TChilkatStringBuilder;
uri: WideString;
statusCode: Integer;
jsonResp: TChilkatJsonObject;
expiresIn: Integer;
restrictedDataToken: WideString;

begin
success := 0;

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

authAws := TChilkatAuthAws.Create(Self);
authAws.AccessKey := 'AWS_ACCESS_KEY';
authAws.SecretKey := 'AWS_SECRET_KEY';
authAws.ServiceName := 'execute-api';
// Use the region that is correct for your needs.
authAws.Region := 'eu-west-1';

rest := TChilkatRest.Create(Self);
bTls := 1;
port := 443;
bAutoReconnect := 1;
// The sandbox endpoint (sandbox.sellingpartnerapi-eu.amazon.com) fails.
// Use the production endpoint and see the note below.
success := rest.Connect('sellingpartnerapi-eu.amazon.com',port,bTls,bAutoReconnect);
if (success = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

success := rest.SetAuthAws(authAws.ControlInterface);

// Load the previously obtained LWA access token.
// See Fetch SP-API LWA Access Token
jsonToken := TChilkatJsonObject.Create(Self);
success := jsonToken.LoadFile('qa_data/tokens/sp_api_lwa_token.json');
if (success = 0) then
  begin
    Memo1.Lines.Add('Failed to load LWA access token.');
    Exit;
  end;

// Add the x-amz-access-token request header.
lwa_token := jsonToken.StringOf('access_token');
rest.ClearAllHeaders();
rest.AddHeader('x-amz-access-token',lwa_token);

// We're going to send a POST with the following JSON body:

// {
//   "restrictedResources": [
//     {
//       "method": "GET",
//       "path": "/orders/v0/orders",
//       "dataElements": ["buyerInfo", "shippingAddress"]
//     }
//   ]
// }

// Use this online tool to generate code from sample JSON: 
// Generate Code to Create JSON

json := TChilkatJsonObject.Create(Self);
json.UpdateString('restrictedResources[0].method','GET');
json.UpdateString('restrictedResources[0].path','/orders/v0/orders');
json.UpdateString('restrictedResources[0].dataElements[0]','buyerInfo');
json.UpdateString('restrictedResources[0].dataElements[1]','shippingAddress');

sbRequest := TChilkatStringBuilder.Create(Self);
json.EmitSb(sbRequest.ControlInterface);

sbResponse := TChilkatStringBuilder.Create(Self);
uri := '/tokens/2021-03-01/restrictedDataToken';
success := rest.FullRequestSb('POST',uri,sbRequest.ControlInterface,sbResponse.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

// ------------------------------------------------------------------------------------
// Note: Using the sandbox endpoint, such as sandbox.sellingpartnerapi-eu.amazon.com
// results in a response status code of 400 with the following error:
// [{"code":"InvalidInput","message":"Could not match input arguments"}]
// Getting a restricted data token seems to only work with the production endpoint.
// ------------------------------------------------------------------------------------

// Examine the response status.
statusCode := rest.ResponseStatusCode;
if (statusCode <> 200) then
  begin
    Memo1.Lines.Add('Response status code: ' + IntToStr(statusCode));
    Memo1.Lines.Add('Response status text: ' + rest.ResponseStatusText);
    Memo1.Lines.Add('Response body: ');
    Memo1.Lines.Add(sbResponse.GetAsString());
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

Memo1.Lines.Add(sbResponse.GetAsString());

// If successful, gets a JSON response such as the following:

// {
//   "expiresIn": 3600,
//   "restrictedDataToken": "Atz.sprdt|AYAB.....TQ="
// }

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

jsonResp := TChilkatJsonObject.Create(Self);
jsonResp.LoadSb(sbResponse.ControlInterface);

expiresIn := jsonResp.IntOf('expiresIn');
restrictedDataToken := jsonResp.StringOf('restrictedDataToken');

// Save the RDT for subsequent use..
success := jsonResp.WriteFile('qa_data/tokens/sp_api_rdt_token.json');

Memo1.Lines.Add('Success!');
end;