Dart

Amazon SP-API Sellers Get Marketplace Participations

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Demonstrates Amazon SP-API Sellers API -- get marketplace participations. 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();
  final bTls = true;
  final port = 443;
  final bAutoReconnect = true;
  // Make sure to use the correct domain.
  // In this example, we are using "sandbox.sellingpartnerapi-eu.amazon.com"
  try {
    rest.connect('sandbox.sellingpartnerapi-eu.amazon.com', port, bTls, bAutoReconnect);
  } 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);

  final sbResponse = CkStringBuilder();
  final uri = '/sellers/v1/marketplaceParticipations';
  try {
    rest.fullRequestNoBodySb('GET', uri, 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:

  // {
  //   "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

  final json = CkJsonObject();

  json.loadSb(sbResponse);

  var id = '';
  var countryCode = '';
  var name = '';
  var defaultCurrencyCode = '';
  var defaultLanguageCode = '';
  var domainName = '';

  var i = 0;
  final countI = json.sizeOfArray('payload');
  while (i < countI) {
    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');
    json.boolOf('payload[i].participation.isParticipating');
    json.boolOf('payload[i].participation.hasSuspendedListings');
    i++;
  }

  print('Success!');
}