Add connect to PG task

.github/workflows/on_push.yml

@@ -31,6 +31,14 @@ jobs:
     - uses: ruby/setup-ruby@v1
       with:
         bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+    - name: Connect to PostgreSQL
+      # Runs a script that creates a PostgreSQL client, populates client with data, and retrieves data
+      run: node client_pg.js
+      # Environment variable used by the `client_pg.js` script to create a new PostgreSQL client.
+      env:
+        # The hostname used to communicate with the PostgreSQL service container
+        POSTGRES_HOST: postgres
+        POSTGRES_PORT: 5432
     - name: RSPEC tests
       run: |
         RAILS_ENV=test bin/rails db:create

client_pg.js

@@ -0,0 +1,29 @@
+const { Client } = require('pg');
+
+const pgclient = new Client({
+  host: process.env.POSTGRES_HOST,
+  port: process.env.POSTGRES_PORT,
+  user: 'postgres',
+  password: 'postgres',
+  database: 'postgres'
+});
+
+pgclient.connect();
+
+const table = 'CREATE TABLE student(id SERIAL PRIMARY KEY, firstName VARCHAR(40) NOT NULL, lastName VARCHAR(40) NOT NULL, age INT, address VARCHAR(80), email VARCHAR(40))'
+const text = 'INSERT INTO student(firstname, lastname, age, address, email) VALUES($1, $2, $3, $4, $5) RETURNING *'
+const values = ['Mona the', 'Octocat', 9, '88 Colin P Kelly Jr St, San Francisco, CA 94107, United States', 'octocat@github.com']
+
+pgclient.query(table, (err, res) => {
+  if (err) throw err
+});
+
+pgclient.query(text, values, (err, res) => {
+  if (err) throw err
+});
+
+pgclient.query('SELECT * FROM student', (err, res) => {
+  if (err) throw err
+  console.log(err, res.rows) // Print the data in student table
+  pgclient.end()
+});