diff --git a/.github/workflows/npmpublish.yml b/.github/workflows/npmpublish.yml
index 135959c..59820ac 100644
--- a/.github/workflows/npmpublish.yml
+++ b/.github/workflows/npmpublish.yml
@@ -7,15 +7,12 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node: [ '10', '12' ]
-    name: Node ${{ matrix.node }} sample
+    name: Node 12 sample
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v1
         with:
-          node-version: ${{ matrix.node }}
+          node-version: 12
       - run: npm install
       - run: npm test
         env:
diff --git a/README.md b/README.md
index 67bb56b..a2f9134 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,11 @@
 # Hasura object mapping library
 ![Node.js Package](https://github.com/mrspartak/hasura-om/workflows/Node.js%20Package/badge.svg) [![Coverage Status](https://coveralls.io/repos/github/mrspartak/hasura-om/badge.svg?branch=master)](https://coveralls.io/github/mrspartak/hasura-om?branch=master)
 
+# Instalation
+```
+npm i hasura-om
+```
+
 # A problem
 We have a microservice infrastructure and need cross-service transactions. One way to do it is to send a graphql query + variables to one service and perform a query there. So this library helps to send more standardized data via JS Objects.
 If you know a better way to solve this problem, you are welcome to issues or email.
@@ -13,6 +18,8 @@ const om = new Hasura({
     graphqlUrl: 'your hasura endpoint',
     adminSecret: 'your hasura admin secret'
 })
+//this command loads data from Hasura about tables/fields/keys to build base table fragments for simple queries
+await om.init()
 
 //query 
 let [err, result] = om.query({
diff --git a/tests/real_query.js b/tests/real_query.js
index df8a41c..932c8bf 100644
--- a/tests/real_query.js
+++ b/tests/real_query.js
@@ -38,6 +38,39 @@ test.serial('delete all records', async (t) => {
 
 	t.is(typeof response._om_test.delete, 'object');
 	t.is(typeof response._om_test_types.delete, 'object');
+
+	//ensure that no rows exist
+	var [err, response] = await orm.query({
+		_om_test: {},
+		_om_test_types: {},
+	});
+	if (err) throw err;
+
+	t.is(response._om_test.length, 0);
+	t.is(response._om_test_types.length, 0);
+});
+
+test.serial('test option flatOne', async (t) => {
+	let orm = t.context.orm;
+
+	var [err, response] = await orm.query({
+		_om_test: {},
+	});
+	if (err) throw err;
+
+	t.is(response.length, 0);
+
+	var [err, response] = await orm.query(
+		{
+			_om_test: {},
+		},
+		{
+			flatOne: false,
+		},
+	);
+	if (err) throw err;
+
+	t.is(response._om_test.length, 0);
 });
 
 test.serial('add records with transaction', async (t) => {