(Delphi DLL) Amazon SP-API Get Feeds

See more Amazon SP-API Examples

Returns feed details for the feeds that match the filters that you specify.

For more information, see https://developer-docs.amazon.com/sp-api/docs/feeds-api-v2021-06-30-reference#get-feeds2021-06-30feeds

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, AuthAws, Rest, JsonObject, StringBuilder;

...

procedure TForm1.Button1Click(Sender: TObject);
var
authAws: HCkAuthAws;
rest: HCkRest;
success: Boolean;
jsonToken: HCkJsonObject;
lwa_token: PWideChar;
sbResponse: HCkStringBuilder;
path: PWideChar;
statusCode: Integer;
json: HCkJsonObject;
feedId: PWideChar;
feedType: PWideChar;
createdTime: PWideChar;
processingStatus: PWideChar;
processingStartTime: PWideChar;
processingEndTime: PWideChar;
nextToken: PWideChar;
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 := 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();
success := CkRest_Connect(rest,'sandbox.sellingpartnerapi-eu.amazon.com',443,True,True);
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);

CkRest_ClearAllQueryParams(rest);
CkRest_AddQueryParam(rest,'feedTypes','POST_PRODUCT_DATA');
CkRest_AddQueryParam(rest,'pageSize','10');
CkRest_AddQueryParam(rest,'processingStatuses','CANCELLED,DONE');

sbResponse := CkStringBuilder_Create();
path := '/feeds/2021-06-30/feeds';
success := CkRest_FullRequestNoBodySb(rest,'GET',path,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:

// {
//   "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 := CkJsonObject_Create();

CkJsonObject_LoadSb(json,sbResponse);

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

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

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

end;