Demo for query storing

Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/p-map-series/index.js b/node_modules/p-map-series/index.js
new file mode 100644
index 0000000..071cca5
--- /dev/null
+++ b/node_modules/p-map-series/index.js
@@ -0,0 +1,12 @@
+'use strict';
+const pReduce = require('p-reduce');
+
+module.exports = (iterable, iterator) => {
+	const ret = [];
+
+	return pReduce(iterable, (a, b, i) => {
+		return Promise.resolve(iterator(b, i)).then(val => {
+			ret.push(val);
+		});
+	}).then(() => ret);
+};