Fix throttle machanism

When throttling was active, there was a bug causing requests to not execute and return the callback functions instead of the resulting values. This release fixes that problem and makes the throttle mechanism consistent return a Promise as well.

v2.0.0

Gets rid of annoying extra arrays in results.

More specifically, xml2js (which we use to convert XML response into a JS object) has an option called explicitArray which defaults to true and causes just about everything to get wrapped in an array, making it a bit annoying to navigate results. We are now overriding this default and setting it to false to get rid of those annoying arrays everywhere.

This is a BREAKING CHANGE! If you want to upgrade, but don't want to upgrade all your code, you can set the parsing options back to the old way like this:

var opHelper = new OperationHelper({
    awsId:     '[YOUR AWS ID HERE]',
    awsSecret: '[YOUR AWS SECRET HERE]',
    assocId:   '[YOUR ASSOCIATE TAG HERE]',
    xml2jsOptions: { explicitArray: true }
});

v1.5.0

Allow endpoint to be auto-configured by providing desired locale.

Example:

var opHelper = new OperationHelper({
    awsId:     '[YOUR AWS ID HERE]',
    awsSecret: '[YOUR AWS SECRET HERE]',
    assocId:   '[YOUR ASSOCIATE TAG HERE]',
    locale: 'IT'
});

This will automatically set your endpoint to the correct endpoint for Italy (webservices.amazon.it). You can also provide the endpoint directly as before:

var opHelper = new OperationHelper({
    awsId:     '[YOUR AWS ID HERE]',
    awsSecret: '[YOUR AWS SECRET HERE]',
    assocId:   '[YOUR ASSOCIATE TAG HERE]',
    endPoint: 'webservices.amazon.it'
});

v1.2.0

Added support for automatic throttling. See https://github.com/dmcquay/node-apac#throttling--request-limits.

v1.1.0

• Errors are now returned as the first parameter of the callback function, instead of being processed by a separate OnError function. Note: This breaks backwards compatibility with previous versions where errors are processed by a separate function. If you still need the old OnError function, you'll need to grab an old version from git.
• OperationHelper.execute now supports promises
• Internal improvements such as more robust testing

Initial release

0.0.1

Add reference to quick start article.