SSL

node-postgres supports TLS/SSL connections to your PostgreSQL server as long as the server is configured to support it. When instantiating a pool or a client you can provide an ssl property on the config object and it will be passed to the constructor for the node TLSSocket.

Self-signed cert

Here's an example of a configuration you can use to connect a client or a pool to a PostgreSQL server.

const config = {
  database: 'database-name',
  host: 'host-or-ip',
  // this object will be passed to the TLSSocket constructor
  ssl: {
    rejectUnauthorized: false,
    ca: fs.readFileSync('/path/to/server-certificates/root.crt').toString(),
    key: fs.readFileSync('/path/to/client-key/postgresql.key').toString(),
    cert: fs.readFileSync('/path/to/client-certificates/postgresql.crt').toString(),
  },
}
import { Client, Pool } from 'pg'
const client = new Client(config)
client.connect(err => {
  if (err) {
    console.error('error connecting', err.stack)
  } else {
    console.log('connected')
    client.end()
  }
})
const pool = new Pool(config)
pool
  .connect()
  .then(client => {
    console.log('connected')
    client.release()
  })
  .catch(err => console.error('error connecting', err.stack))
  .then(() => pool.end())