code: function getResponse( clbk ) {
  	if ( typeof clbk !== 'function' ) {
  		throw new TypeError( 'getResponse()::invalid input argument. Callback must be a function.' );
  	}
  	/**
  	* FUNCTION: onResponse( error, response, body )
  	*	Response handler.
  	*
  	* @private
  	* @param {Object} error - error object
  	* @param {Object} response - response object
  	* @param {String} body - response body
  	*/
  	return function onResponse( error, response, body ) {
  		var data;
  		if ( error ) {
  			clbk({
  				'status': 502,
  				'message': 'Request error. Unable to obtain data.'
  			});
  			return;
  		}
  		if ( !body ) {
  			clbk({
  				'status': 404,
  				'message': 'No data returned. Empty body. Ensure all query parameters are correct.'
  			});
  			return;
  		}
  		try {
  			data = JSON.parse( body );
  		} catch ( err ) {
  			clbk({
  				'status': 502,
  				'message': 'Unsupported data format. Response body cannot be parsed as JSON.'
  			});
  			return;
  		}
  		if ( Array.isArray( data ) && !data.length ) {
  			clbk({
  				'status': 404,
  				'message': 'No data returned. Empty data array. Ensure all query parameters are correct.'
  			});
  			return;
  		}
  		clbk( null, data );
  	}; // end FUNCTION onResponse()
  }
docs: FUNCTION: getResponse( clbk )
  Returns a response handler.
  
  @param {Function} clbk - callback to invoke upon receiving a request response. Function should accept two arguments: [ error, data ].
  @returns {Function} response handler