Error connecting to heroku postgres db in nodejs

问题

It seems after my database was upgraded to 10.2 I'm unable to connect.

I'm using the pg 7.4.2 npm package.

To be clear, I have been connecting without issue for 6 months using the same connection string which had ?ssl=true appended to it.

I get this error connecting via Pool or Client.

AssertionError [ERR_ASSERTION]: false == true
    at Object.exports.connect (_tls_wrap.js:1099:3)
    at Socket.<anonymous> (/home/e/express/testpg/node_modules/pg/lib/connection.js:94:23)
    at Object.onceWrapper (events.js:219:13)
    at Socket.emit (events.js:127:13)
    at Socket.emit (domain.js:421:20)
    at addChunk (_stream_readable.js:269:12)
    at readableAddChunk (_stream_readable.js:256:11)
    at Socket.Readable.push (_stream_readable.js:213:10)
    at TCP.onread (net.js:598:20)

I'm now hardcoding the full postgres connection string so there is no issue with env variables.

I've tried adding/removing ?ssl=true to the end of the connection string and adding/removing ssl:true from the constructor. I've also tried with and without promises. Same error no matter what on both local and deployed to heroku.

imports:

import { Pool, Client } from 'pg'

method 1:

let pool = new Pool({
  connectionString: csnew,
  ssl: true
})

pool.connect().then( client => {
  console.log('connected')
})
.catch(e=> {
  console.log(e)
})

method 2:

let pgclient = new Client({
  connectionString: csnew,
  ssl: true
})
pgclient.connect().then( () => {
  console.log('connected')
}).catch(e=> {
  console.log(e)
})