Cannot find host name for ElephantSQL server - express

Question

I've been trying to set up an express server. All my routes seem to work correctly, it's connecting to the database that's giving me issues. I'm not great at backend but I feel like getting the host name shouldn't give me this many problems.
Here's my error: (batyr.db.elephantsql.com is my DB_HOST name):
Error: getaddrinfo ENOTFOUND 'batyr.db.elephantsql.com';
at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:71:26) {
errno: -3008,
code: 'ENOTFOUND',
syscall: 'getaddrinfo',
hostname: "'batyr.db.elephantsql.com';"
}
Here's my repository
Here's my knexfile.js:
require('dotenv').config();
const path = require("path");
module.exports = {
development: {
client: 'pg',
connection: {
host: process.env.DB_HOST,
user: process.env.DB_USERNAME,
password: process.env.DB_PASSWORD,
database: process.env.DB_NAME,
},
charset: 'utf8',
pool: { min: 1, max: 5 },
migrations: {
directory: path.join(__dirname, "src", "db", "migrations"),
},
},
};
Here's my .env file:
DATABASE_URL = 'postgres://pausapcx:vxSa5l3ZK_F2lrlMGhyt0XBlYbX7hfWY#batyr.db.elephantsql.com/pausapcx';
DB_HOST = 'batyr.db.elephantsql.com';
DB_USERNAME = 'pausapcx';
DB_PASSWORD = '***'; // cut just for this post
DB_NAME = 'pausapcx';
My server.js is running on port 8080, pgAdmin is running on port 5432
Here are the host and server names from elephantsql:
(https://i.stack.imgur.com/CnGQ4.png)
(https://i.stack.imgur.com/EVRkP.png)
I've tried with several differnet host names:
batyr.db.elephantsql.com (pgAdmin accepted this one)
batyr
I've tried the database URL
I've even tried just Elephantsql.com
I've pinged batyr.db.elephantsql.com in the terminal and gotten this response:
Pinging ec2-3-89-203-254.compute-1.amazonaws.com [3.89.203.254] with 32 bytes of data:
Reply from 3.89.203.254: bytes=32 time=41ms TTL=44
Reply from 3.89.203.254: bytes=32 time=76ms TTL=44
Reply from 3.89.203.254: bytes=32 time=38ms TTL=44
Reply from 3.89.203.254: bytes=32 time=37ms TTL=44
Ping statistics for 3.89.203.254:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 37ms, Maximum = 76ms, Average = 48ms
I really suck at backend, I'd appreciate any help.

Answer 1

Was able to get data!
terminal screenshot
The solution was to just swap out all the random connection data with a single database URL (I'll secure it in .env once it's all working)
// works:
connection: 'postgres://pausapcx:***#batyr.db.elephantsql.com/pausapcx',
// doesn't work:
connection: {
host: 'batyr.db.elephantsql.com',
user: 'pausapcx',
password: '***',
database: 'pausapcx',
},