Dart

Create Restricted Data Token (RDT)

See more Amazon SP-API Examples

Returns a Restricted Data Token (RDT) for one or more restricted resources 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();
  final bTls = true;
  final port = 443;
  final bAutoReconnect = true;
  // The sandbox endpoint (sandbox.sellingpartnerapi-eu.amazon.com) fails.
  // Use the production endpoint and see the note below.
  try {
    rest.connect('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);

  // We're going to send a POST with the following JSON body:

  // {
  //   "restrictedResources": [
  //     {
  //       "method": "GET",
  //       "path": "/orders/v0/orders",
  //       "dataElements": ["buyerInfo", "shippingAddress"]
  //     }
  //   ]
  // }

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

  final json = CkJsonObject();
  json.updateString('restrictedResources[0].method', 'GET');
  json.updateString('restrictedResources[0].path', '/orders/v0/orders');
  json.updateString('restrictedResources[0].dataElements[0]', 'buyerInfo');
  json.updateString('restrictedResources[0].dataElements[1]', 'shippingAddress');

  final sbRequest = CkStringBuilder();
  json.emitSb(sbRequest);

  final sbResponse = CkStringBuilder();
  final uri = '/tokens/2021-03-01/restrictedDataToken';
  try {
    rest.fullRequestSb('POST', uri, sbRequest, sbResponse);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // ------------------------------------------------------------------------------------
  // Note: Using the sandbox endpoint, such as sandbox.sellingpartnerapi-eu.amazon.com
  // results in a response status code of 400 with the following error:
  // [{"code":"InvalidInput","message":"Could not match input arguments"}]
  // Getting a restricted data token seems to only work with the production endpoint.
  // ------------------------------------------------------------------------------------

  // Examine the response status.
  final statusCode = rest.responseStatusCode;
  if (statusCode != 200) {
    print('Response status code: $statusCode');
    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:

  // {
  //   "expiresIn": 3600,
  //   "restrictedDataToken": "Atz.sprdt|AYAB.....TQ="
  // }

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

  final jsonResp = CkJsonObject();
  jsonResp.loadSb(sbResponse);

  final expiresIn = jsonResp.intOf('expiresIn');
  final restrictedDataToken = jsonResp.stringOf('restrictedDataToken');

  // Save the RDT for subsequent use..
  jsonResp.writeFile('qa_data/tokens/sp_api_rdt_token.json');

  print('Success!');
}