502 error. Railway incompatible with IPv6 + Supabase?

oscarskrt

HOBBYOP

a month ago

Hi! I have been having trouble trying to get my Node.js trying to connect to Supabase PostgresQL whilst deployed on Railway. These are the errors I'm getting in my deploy log.

Error connecting to database: Error: connect ENETUNREACH 2a05:d016:571:a402:c2bd:d4fa:5bd0:9c23:5432 - Local (:::0) at internalConnect (node:net:1100:16) at defaultTriggerAsyncIdScope (node:internal/async_hooks:462:18) at GetAddrInfoReqWrap.emitLookup [as callback] (node:net:1381:9) at GetAddrInfoReqWrap.onlookup [as oncomplete] (node:dns:109:8)

And this is the connection code

const client = new Client({ connectionString: process.env.DATABASE_URL, ssl: { rejectUnauthorized: false } });

I am not a programmer, so I have been relying on Claude.ai which is saying that its trying to connect via IPv6 but that Railway doesnt support that. I have been searching for Supabase and IPv6 in here, but cant understand many of the terms used. If anyone has any experience with Supabase and Railway, I would quite like some help. Thanks for any help. Just ask if you need any more info

14 Replies

samgordon

PROTop 5% Contributor

a month ago

Are you using any templates?

oscarskrt

HOBBYOP

a month ago

Nope, I deployed a custom Node.js/Express app from my own GitHub repository. I connected the repo to Railway and it deploys automatically. Not using any Railway templates

samgordon

PROTop 5% Contributor

a month ago

Can you share the variables you have set on Supabase related to binding? (port, host, etc)

oscarskrt

HOBBYOP

a month ago

I'm not setting any separate host, port, user, or password, just the full DATABASE_URL string from Supabase

DATABASE_URL: postgresql://postgres:[password]@db.gvzvgjehxucjkcqygegw.supabase.co:5432/postgres
API-KEY: Key for an api obvs

samgordon

PROTop 5% Contributor

a month ago