Application Getting 502 Bad Gateway Error After Deployment
ayyanulhaq997-cmd
FREEOP

9 days ago

Hello,

I'm getting a "502 Bad Gateway - Application failed to respond" error when trying to access my deployed application on Railway.

Current Setup:

  • Application: Node.js + Express + React (vacation rental platform)

  • Framework: Vite + Express

  • Database: PostgreSQL (Neon)

  • Port Configuration: App is configured to listen on process.env.PORT and bind to 0.0.0.0

What's Working:

  • Application runs perfectly on Replit (localhost:5000)

  • The app is correctly configured to listen on the PORT environment variable Railway provides

  • All Express routes are functional

What's Failing:

  • When deployed to Railway, the app returns 502 Bad Gateway

  • Request ID: jp08az7aTUKdH9oGDcO5xA

  • The app appears to start but fails to respond to requests

Configuration Details:

  • Application listens on: 0.0.0.0:PORT

  • Environment Variables Set: DATABASE_URL, NODE_ENV=production, SESSION_SECRET

  • Build command: npm run build

  • Start command: npm run dev

  • Target port: 5000 (matches what app listens on)

What I've Verified:

  1. App starts without errors locally

  2. Port configuration is correct (0.0.0.0:PORT)

  3. Environment variables are set in Railway

  4. Database URL is configured

Could you help me troubleshoot why the app isn't responding on Railway? Is there a deployment log I can check?

$10 Bounty

14 Replies

Railway
BOT

9 days ago

Hey there! We've found the following might help you get unblocked faster:

If you find the answer from one of these, please let us know by solving the thread!


Railway

Hey there! We've found the following might help you get unblocked faster: - [🧵 502 Bad Gateway](https://station.railway.com/questions/502-bad-gateway-3c736b4d) - [🧵 Successful deployment but 502 Bad Gateway](https://station.railway.com/questions/successful-deployment-but-502-bad-gatewa-83650254) - [🧵 502 Bad Gateway Error Despite Server Running Successfully](https://station.railway.com/questions/502-bad-gateway-error-despite-server-run-fe490c07) If you find the answer from one of these, please let us know by solving the thread!

ayyanulhaq997-cmd
FREEOP

9 days ago

No i cannot find answer please resolve it and tell me what the error


Status changed to Awaiting Railway Response Railway 9 days ago


abhishekmitra-ait
FREE

9 days ago

@ayyanulhaq997-cmd, can you share the code repo link?


abhishekmitra-ait

@ayyanulhaq997-cmd, can you share the code repo link?

ayyanulhaq997-cmd
FREEOP

9 days ago


Status changed to Awaiting User Response brody 9 days ago


ayyanulhaq997-cmd

https://github.com/ayyanulhaq997-cmd/ProposalForge.git

abhishekmitra-ait
FREE

9 days ago

can you also give me access to railway where application is deployed?


Status changed to Awaiting Railway Response Railway 9 days ago


abhishekmitra-ait

can you also give me access to railway where application is deployed?

ayyanulhaq997-cmd
FREEOP

9 days ago


abhishekmitra-ait
FREE

9 days ago

Refer the image, can you go to settings of your railway project and add me as the member?

email : abhishekmitra91@gmail.com
github : AbhishekMitra-AIT


abhishekmitra-ait

Refer the image, can you go to settings of your railway project and add me as the member?email : abhishekmitra91@gmail.comgithub : AbhishekMitra-AIT

ayyanulhaq997-cmd
FREEOP

9 days ago

i send you access


abhishekmitra-ait
FREE

9 days ago

@ayyanulhaq997-cmd, are you in discord? if possible lets connect on discord or gmail. Have some queries..


ayyanulhaq997-cmd

i send you access

abhishekmitra-ait
FREE

8 days ago

can you check i've created another link - https://romantic-miracle-production.up.railway.app/

below details saved for reference-

source image: ghcr.io/railwayapp-templates/postgres-ssl:17

public network: metro.proxy.rlwy.net:46638


abhishekmitra-ait

can you check i've created another link - https://romantic-miracle-production.up.railway.app/below details saved for reference-source image: ghcr.io/railwayapp-templates/postgres-ssl:17public network: metro.proxy.rlwy.net:46638

ayyanulhaq997-cmd
FREEOP

8 days ago

But now it does not show images and and no property found show


ayyanulhaq997-cmd

But now it does not show images and and no property found show

abhishekmitra-ait
FREE

8 days ago

can you kindly connect with me on discord or google chat?

discord - https://discord.com/channels/@abhishekmitra_ait

google chat - abhishekmitra91@gmail.com


abhishekmitra-ait

can you kindly connect with me on discord or google chat?discord - https://discord.com/channels/@abhishekmitra_aitgoogle chat - abhishekmitra91@gmail.com

ayyanulhaq997-cmd
FREEOP

8 days ago

check your gmail


ayyanulhaq997-cmd

check your gmail

abhishekmitra-ait
FREE

8 days ago

come to google chat, i've sent you hii message there.


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