Dart

Amazon SP-API Get Feeds

See more Amazon SP-API Examples

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

import 'package:chilkat/chilkat.dart';

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

  final authAws = CkAuthAws();
  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';

  final rest = CkRest();
  try {
    rest.connect('sandbox.sellingpartnerapi-eu.amazon.com', 443, true, true);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  rest.setAuthAws(authAws);

  // Load the previously obtained LWA access token.
  // See Fetch SP-API LWA Access Token
  final jsonToken = CkJsonObject();
  try {
    jsonToken.loadFile('qa_data/tokens/sp_api_lwa_token.json');
  } on ChilkatException {
    print('Failed to load LWA access token.');
    return;
  }

  // Add the x-amz-access-token request header.
  final lwaToken = jsonToken.stringOf('access_token');

  rest.clearAllHeaders();
  rest.addHeader('x-amz-access-token', lwaToken);

  rest.clearAllQueryParams();
  rest.addQueryParam('feedTypes', 'POST_PRODUCT_DATA');
  rest.addQueryParam('pageSize', '10');
  rest.addQueryParam('processingStatuses', 'CANCELLED,DONE');

  final sbResponse = CkStringBuilder();
  final path = '/feeds/2021-06-30/feeds';
  try {
    rest.fullRequestNoBodySb('GET', path, sbResponse);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Examine the response status.
  final statusCode = rest.responseStatusCode;
  if (statusCode != 200) {
    print('Response status text: ${rest.responseStatusText}');
    print('Response body: ');
    print(sbResponse.getAsString());
    print('Failed.');
    return;
  }

  print(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

  final json = CkJsonObject();

  json.loadSb(sbResponse);

  var feedId = '';
  var feedType = '';
  var createdTime = '';
  var processingStatus = '';
  var processingStartTime = '';
  var processingEndTime = '';

  final nextToken = json.stringOf('nextToken');
  var i = 0;
  final countI = json.sizeOfArray('feeds');
  while (i < countI) {
    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++;
  }

  print('Success!');
}