SSL for PostgreSQL connection nodejs

问题

I am trying to connect to my Heroku PostgreSQL DB and I keep getting an SSL error. Does anyone have an idea on how to enable SSL in the connection string?

postgres://user:pass@host:port/database;

Been looking for it everywhere but it does not seem to be a very popular topic. By the way, I am running Nodejs and the node-pg module with its connection-pooled method:

pg.connect(connString, function(err, client, done) { /// Should work. });

Comments are much appreciated.

回答1:

You can achieve this like this:

postgres://user:pass@host:port/database?ssl=true

回答2:

You also can use this code below when create a new Client from node-postgres:

var pg = require("pg");

var client = new pg.Client({
  user: "yourUser",
  password: "yourPass",
  database: "yourDatabase",
  port: 5432,
  host: "host.com",
  ssl: true
});

client.connect();

var query = client.query('CREATE TABLE people(id SERIAL PRIMARY KEY, name VARCHAR(100) not null)');

query.on('row', function(row) {
  console.log(row.name);
});

query.on('end', client.end.bind(client));

Hope this helps!

回答3:

With Google Cloud PG and pg-promise I had a similar need. The error I got (using ?ssl=true) was connection requires a valid client certificate.

SSL connection is not documented for pg-promise but it is built on node-postgres. As explained in the link, the ssl config parameter can be more than just true:

const pgp = require('pg-promise')();
const fs = require('fs');

const connectionConf = {
    host: 'myhost.com',
    port: 5432,
    database: 'specific_db_name',
    user: 'my_App_user',
    password: 'aSecretePass',
    ssl: {
        rejectUnauthorized : false,
        ca   : fs.readFileSync("server-ca.pem").toString(),
        key  : fs.readFileSync("client-key.pem").toString(),
        cert : fs.readFileSync("client-cert.pem").toString(),
  }

};
const new_db = pgp(connectionConf);
new_db.any('SELECT * FROM interesting_table_a LIMIT 10')
    .then(res => {console.log(res);})
    .catch(err => {console.error(err);})
    .then(() => {new_db.$pool.end()});

回答4:

You can also use environment variables to set up the connection. Here is an example.

(Assuming you have a Postgres DB running on port 5432@localhost and the DB supports SSL connection)

.env

PGHOST=localhost
PGPORT=5432
PGDATABASE=mydb
PGUSER=pguser1
PGPASSWORD=mypassword
PGSSLMODE=require

(Ensure you set PGSSLMODE to require as shown above.)

db.js

require('dotenv').config()
const { Pool } = require('pg')

// pools will use environment variables for connection information
const pool = new Pool()
// const pool = new Pool({ ssl: true }); This works too in the absence of PGSSLMODE
pool.on('error', function (err) {
    console.log('idle client error', err.message, err.stack)
})

module.exports = {
    pool,
    query: (text, params, callback) => {
        return pool.query(text, params, callback)
    }
}

server.js

const express = require('express')
const { pool } = require('./db')

const app = express()
const port = 3000

app.get('/', async (req, res) => {
  console.log('Request received...')
  const result = await pool.query(`SELECT * FROM organization`);
  res.send(result)
})

app.listen(port, () => console.log(`Example app listening on port ${port}!`))

Note: in case your Postgres database does not support SSL connections, you will have the following error when your application tries to make a query:

Error: The server does not support SSL connections
at Socket.<anonymous> (node_modules/pg/lib/connection.js:87:35)

References:

https://www.postgresql.org/docs/9.6/libpq-connect.html#LIBPQ-CONNECT-SSLMODE

回答5:

For anybody looking for a TypeORM solution, it's also {ssl: true}.

Full example:

const connectionOptions: PostgresConnectionOptions = {
    name: `default`,
    type: `postgres`,
    url: process.env.DATABASE_URL,
    ssl: process.env.DATABASE_SSL === `true`
}

来源：https://stackoverflow.com/questions/22301722/ssl-for-postgresql-connection-nodejs

标签

node.js

postgresql

ssl

node-postgres