Problem with JSON response when multiple items are returned about amazon-mws HOT 3 CLOSED

@edwardsph
Can you provide the ASIN with which you are facing a problem?

from amazon-mws.

@bhushankumarl, The issue was not any specific ASIN but that the API is designed to take a list of ASIN. I'm afraid I partially wasted your time as I realise now it is possible to add keys to an array since is also behaves like an object. I had been confused by seeing in the debugger the response variable being type "Object {}" or "Array[2]" depending on whether I used 1 ASIN or 2. I assumed it was a problem that this was not consistent. Seeing no tests using multiple inputs, I assumed this had been on oversight. I see now that if I check the structure I can deal with either.
Examples:

ASIN = 0583305571
Res = {
  "ASIN": "0583305571",
  "Product": { }
  "ResponseMetadata": { },
  "Headers": { },
  "StatusCode": 200
} 

ASIN = 0583305571, 1498289223
Res = [
  {
  "ASIN": "0583305571",
  "Product": {  }
  },
  {
  "ASIN": "1498289223",
  "Product": {  }
  },
  "ResponseMetadata": { },
  "Headers": { },
  "StatusCode": 200
]

So I can get the headers from the response whether there is 1 result or more. However, to process the results consistently I do this:

    const resultArray = Array.isArray(res) ? res : [res];

Is this something that it would be useful to add to the docs to explain how the results differ in the 2 circumstances?
Thanks for your time
Pete

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@edwardsph
That is preety simple API call :

    var ASINList = [ 'ASIN.1', 'ASIN.2' ];
    var mwsRequestData = {
        Version: '2011-10-01',
        Action: 'GetLowestOfferListingsForASIN',
        SellerId: mwsAccount.sellerId,
        MarketplaceId: mwsAccount.marketplaceId,
        ItemCondition: 'New'
    };
    try {
        var index = 1;
        for (var i in ASINList) {
            mwsRequestData[ 'ASINList.ASIN.' + index ] = ASINList[ i ];
            index++;
        }
        var response = await amazonMws.products.searchFor(mwsRequestData);
        console.log('response ', response);
    } catch (error) {
        console.log('error products', error);
    }

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