dynamodb modify all items

dynamodb-modify-all.js

var scanAll = require("./scanAll");
var docClient = require("../aws").docClient;
var co = require("co");

var modifyAll = co.wrap(function*(table, action) {
	var items = yield scanAll(table);
	var promises = [];

	for (var i = 0; i < items.length; i++) {
		items[i] = action(items[i]);

		var putShopParams = {
			TableName: table,
			Item: items[i]
		};

		console.log('new item: ' + JSON.stringify(items[i]));

		promises.push(docClient.put(putShopParams).promise());
	}

	yield promises;

	console.log("done");
	return yield Promise.resolve();
});

module.exports = modifyAll;