NodeJs 和 node-postgres 代码未在 EC2 中返回任何响应

Question

I am trying to connect to a remote Postgresql instance (Aurora) using Node and the pg ( https://node-postgres.com/ ) library.

My code looks like this:

const { Pool } = require('pg');
const pool = new Pool({
  user: '-not-shown-',
  host: '-not-shown-',
  database: '-not-shown-',
  password: '-not-shown-',
  port: 5432,
});
console.log('Testing select now query...');
pool.query('SELECT NOW()', (err, res) => {
  console.log(err, res);
  pool.end();
  if (!err) {
    console.log(res);
  } else {
    console.log(err);
  }
});

However, I get no result whatsoever. Neither the query result or any sort of error. Note that I am able to successfully connect to the database instance using psql in the commandline. I am using an EC2 Free tier Amazon Linux 2 AMI instance.

The code works on my local machine and I get a result that looks like this:

But when I ssh into the Ec2 machine, all I get is this:

Notice, no result and no error either. I do not know what is going on. I assume there is a problem, since it would have returned the query result if it was ok. Please help.

Answer 1

Update:

I found the answer: https://github.com/brianc/node-postgres/issues/2069

The current versions of node-postgres and pg-promise are not compatible with the latest version of node. I was using Node 14. I downgraded to 12 and it is now working perfectly.