Node-apac output: how to get items returned

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How to get the list of items from node-apac ? I am trying the quick start example as following:

var util = require('util'),
    OperationHelper = require('apac').OperationHelper;

var opHelper = new OperationHelper({
    awsId:     '[YOUR AWS ID HERE]',
    awsSecret: '[YOUR AWS SECRET HERE]',
    assocId:   '[YOUR ASSOCIATE TAG HERE]'
    // xml2jsOptions: an extra, optional, parameter for if you want to pass additional options for the xml2js module. (see http://ift.tt/1BzmU6Z)
});


// execute(operation, params, callback)
// operation: select from http://ift.tt/1AOX4tu
// params: parameters for operation (optional)
// callback(err, parsed, raw): callback function handling results. err = potential errors raised from xml2js.parseString() or http.request(). parsed = xml2js parsed response. raw = raw xml response.

opHelper.execute('ItemSearch', {
  'SearchIndex': 'Books',
  'Keywords': 'harry potter',
  'ResponseGroup': 'ItemAttributes,Offers'
}, function(err, results) { // you can add a third parameter for the raw xml response, "results" here are currently parsed using xml2js
    console.log(results);
});

// output:
// { ItemSearchResponse: 
//    { '$': { xmlns: 'http://ift.tt/JgRJni' },
//      OperationRequest: [ [Object] ],
//      Items: [ [Object] ] } }

I got the same output as the output above. It seems to me that the output is empty. I have changed the 'Keywords': value but the output is still the same. Where to modify to get the list of items returned. Or should I change the endpoint? Where? I am new to node.js and Amazon product api. Thank you.

asked 1 min ago

David

1

Node-apac output: how to get items returned