(Delphi ActiveX) Amazon SP-API Sellers Get Marketplace Participations

See more Amazon SP-API Examples

Demonstrates Amazon SP-API Sellers API -- get marketplace participations.

For more information, see https://developer-docs.amazon.com/sp-api/docs/sellers-api-v1-reference#getmarketplaceparticipations

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
authAws: TChilkatAuthAws;
rest: TChilkatRest;
bTls: Integer;
port: Integer;
bAutoReconnect: Integer;
success: Integer;
jsonToken: TChilkatJsonObject;
lwa_token: WideString;
sbResponse: TChilkatStringBuilder;
uri: WideString;
statusCode: Integer;
json: TChilkatJsonObject;
Id: WideString;
CountryCode: WideString;
Name: WideString;
DefaultCurrencyCode: WideString;
DefaultLanguageCode: WideString;
DomainName: WideString;
IsParticipating: Integer;
HasSuspendedListings: Integer;
i: Integer;
count_i: Integer;

begin
// 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;
// Make sure to use the correct domain.
// In this example, we are using "sandbox.sellingpartnerapi-eu.amazon.com"
success := rest.Connect('sandbox.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);

sbResponse := TChilkatStringBuilder.Create(Self);
uri := '/sellers/v1/marketplaceParticipations';
success := rest.FullRequestNoBodySb('GET',uri,sbResponse.ControlInterface);
if (success = 0) then
  begin
    Memo1.Lines.Add(rest.LastErrorText);
    Exit;
  end;

// Examine the response status.
statusCode := rest.ResponseStatusCode;
if (statusCode <> 200) then
  begin
    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:

// {
//   "payload": [
//     {
//       "marketplace": {
//         "id": "ATVPDKIKX0DER",
//         "countryCode": "US",
//         "name": "Amazon.com",
//         "defaultCurrencyCode": "USD",
//         "defaultLanguageCode": "en_US",
//         "domainName": "www.amazon.com"
//       },
//       "participation": {
//         "isParticipating": true,
//         "hasSuspendedListings": false
//       }
//     }
//   ]
// }

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

json := TChilkatJsonObject.Create(Self);

json.LoadSb(sbResponse.ControlInterface);

i := 0;
count_i := json.SizeOfArray('payload');
while i < count_i do
  begin
    json.I := i;
    Id := json.StringOf('payload[i].marketplace.id');
    CountryCode := json.StringOf('payload[i].marketplace.countryCode');
    Name := json.StringOf('payload[i].marketplace.name');
    DefaultCurrencyCode := json.StringOf('payload[i].marketplace.defaultCurrencyCode');
    DefaultLanguageCode := json.StringOf('payload[i].marketplace.defaultLanguageCode');
    DomainName := json.StringOf('payload[i].marketplace.domainName');
    IsParticipating := json.BoolOf('payload[i].participation.isParticipating');
    HasSuspendedListings := json.BoolOf('payload[i].participation.hasSuspendedListings');
    i := i + 1;
  end;

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