Delphi DLL

Amazon SP-API Sellers Get Marketplace Participations

See more Amazon SP-API Examples

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

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, AuthAws, Rest, JsonObject, StringBuilder;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
authAws: HCkAuthAws;
rest: HCkRest;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
jsonToken: HCkJsonObject;
lwa_token: PWideChar;
sbResponse: HCkStringBuilder;
uri: PWideChar;
statusCode: Integer;
json: HCkJsonObject;
Id: PWideChar;
CountryCode: PWideChar;
Name: PWideChar;
DefaultCurrencyCode: PWideChar;
DefaultLanguageCode: PWideChar;
DomainName: PWideChar;
IsParticipating: Boolean;
HasSuspendedListings: Boolean;
i: Integer;
count_i: Integer;

begin
success := False;

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

authAws := CkAuthAws_Create();
CkAuthAws_putAccessKey(authAws,'AWS_ACCESS_KEY');
CkAuthAws_putSecretKey(authAws,'AWS_SECRET_KEY');
CkAuthAws_putServiceName(authAws,'execute-api');
// Use the region that is correct for your needs.
CkAuthAws_putRegion(authAws,'eu-west-1');

rest := CkRest_Create();
bTls := True;
port := 443;
bAutoReconnect := True;
// Make sure to use the correct domain.
// In this example, we are using "sandbox.sellingpartnerapi-eu.amazon.com"
success := CkRest_Connect(rest,'sandbox.sellingpartnerapi-eu.amazon.com',port,bTls,bAutoReconnect);
if (success = False) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

success := CkRest_SetAuthAws(rest,authAws);

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

// Add the x-amz-access-token request header.
lwa_token := CkJsonObject__stringOf(jsonToken,'access_token');
CkRest_ClearAllHeaders(rest);
CkRest_AddHeader(rest,'x-amz-access-token',lwa_token);

sbResponse := CkStringBuilder_Create();
uri := '/sellers/v1/marketplaceParticipations';
success := CkRest_FullRequestNoBodySb(rest,'GET',uri,sbResponse);
if (success = False) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// Examine the response status.
statusCode := CkRest_getResponseStatusCode(rest);
if (statusCode <> 200) then
  begin
    Memo1.Lines.Add('Response status text: ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('Response body: ');
    Memo1.Lines.Add(CkStringBuilder__getAsString(sbResponse));
    Memo1.Lines.Add('Failed.');
    Exit;
  end;

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

// 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 := CkJsonObject_Create();

CkJsonObject_LoadSb(json,sbResponse);

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

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

CkAuthAws_Dispose(authAws);
CkRest_Dispose(rest);
CkJsonObject_Dispose(jsonToken);
CkStringBuilder_Dispose(sbResponse);
CkJsonObject_Dispose(json);

end;