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Connect with NodeJS

This example connects to PostgreSQL® service from NodeJS, making use of the pg package.


These are the placeholders you will need to replace in the code sample:

USERPostgreSQL username, from the service overview page
PASSWORDPostgreSQL password, from the service overview page
HOSTHostname for PostgreSQL connection, from the service overview page
PORTPort for PostgreSQL connection, from the service overview page
DATABASEDatabase Name for PostgreSQL connection, from the service overview page


For this example you will need:

  • The npm pg package:

    npm install pg --save
  • Download CA certificates from the service overview page, this example assumes it is in a local file called ca.pem.


Add the following to index.js and replace the connection parameters with the ones from the service overview page:

const fs = require("fs");
const pg = require("pg");

const config = {
user: "USER",
password: "PASSWORD",
host: "HOST",
port: "PORT",
database: "DATABASE",
ssl: {
rejectUnauthorized: true,
ca: fs.readFileSync("./ca.pem").toString(),

const client = new pg.Client(config);
client.connect(function (err) {
if (err) throw err;
client.query("SELECT VERSION()", [], function (err, result) {
if (err) throw err;

client.end(function (err) {
if (err) throw err;

This code creates a PostgreSQL client and opens a connection to the database. Then runs a query checking the database version and prints the response.

To run the code:

node index.js

If the script runs successfully, the outputs should be the PostgreSQL version running in your service like:

PostgreSQL 13.3 on x86_64-pc-linux-gnu, compiled by gcc, a 68c5366192 p 6520304dc1, 64-bit