Delphi ActiveX

Amazon SP-API Get Feeds

See more Amazon SP-API Examples

Returns feed details for the feeds that match the filters 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;
jsonToken: TChilkatJsonObject;
lwa_token: WideString;
sbResponse: TChilkatStringBuilder;
path: WideString;
statusCode: Integer;
json: TChilkatJsonObject;
feedId: WideString;
feedType: WideString;
createdTime: WideString;
processingStatus: WideString;
processingStartTime: WideString;
processingEndTime: WideString;
nextToken: WideString;
i: Integer;
count_i: Integer;

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);
success := rest.Connect('sandbox.sellingpartnerapi-eu.amazon.com',443,1,1);
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);

rest.ClearAllQueryParams();
rest.AddQueryParam('feedTypes','POST_PRODUCT_DATA');
rest.AddQueryParam('pageSize','10');
rest.AddQueryParam('processingStatuses','CANCELLED,DONE');

sbResponse := TChilkatStringBuilder.Create(Self);
path := '/feeds/2021-06-30/feeds';
success := rest.FullRequestNoBodySb('GET',path,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:

// {
//   "feeds": [
//     {
//       "feedId": "FeedId1",
//       "feedType": "POST_PRODUCT_DATA",
//       "createdTime": "2019-12-11T13:16:24.630Z",
//       "processingStatus": "CANCELLED",
//       "processingStartTime": "2019-12-11T13:16:24.630Z",
//       "processingEndTime": "2019-12-11T13:16:24.630Z"
//     }
//   ],
//   "nextToken": "VGhpcyB0b2tlbiBpcyBvcGFxdWUgYW5kIGludGVudGlvbmFsbHkgb2JmdXNjYXRlZA=="
// }

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

json := TChilkatJsonObject.Create(Self);

json.LoadSb(sbResponse.ControlInterface);

nextToken := json.StringOf('nextToken');
i := 0;
count_i := json.SizeOfArray('feeds');
while i < count_i do
  begin
    json.I := i;
    feedId := json.StringOf('feeds[i].feedId');
    feedType := json.StringOf('feeds[i].feedType');
    createdTime := json.StringOf('feeds[i].createdTime');
    processingStatus := json.StringOf('feeds[i].processingStatus');
    processingStartTime := json.StringOf('feeds[i].processingStartTime');
    processingEndTime := json.StringOf('feeds[i].processingEndTime');
    i := i + 1;
  end;

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