deployment-railway

When to use this skill

Deploy Flask LINE bots to Railway.app, configure environment variables, set up webhooks, and monitor deployments.

How to use it

Required Files

Procfile:

web: python main.py

requirements.txt:

Flask==3.0.0
line-bot-sdk==3.5.0
APScheduler==3.10.4
firebase-admin==6.2.0

main.py entry point:

if __name__ == "__main__":
    port = int(os.getenv("PORT", 5000))
    app.run(host="0.0.0.0", port=port)

Environment Variables

Set in Railway dashboard:

• LINE_CHANNEL_ACCESS_TOKEN – LINE Bot token
• LINE_CHANNEL_SECRET – Channel secret
• FIREBASE_CONFIG_JSON – Complete Firebase JSON

Deployment Steps

1. Connect GitHub repo to Railway
2. Set environment variables
3. Get generated domain URL
4. Configure LINE webhook: https://your-app.up.railway.app/callback

Monitoring

Add health check:

@app.route("/", methods=['GET'])
def health_check():
    return "Bot is running!", 200

View logs in Railway dashboard → Deployments → View Logs

Common Issues

• Crashed: Check Procfile and PORT usage
• Webhook 400: Verify LINE_CHANNEL_SECRET
• Firebase failed: Check JSON format in env var
• No scheduled jobs: Upgrade to Hobby plan ($5/mo)

Links

• Railway Docs
• LINE Developers