Monitoring

Monitor your Workers in production using Cloudflare's built-in tools and roll back quickly when issues arise.

Wrangler Tail

Stream live logs from any worker:

# Tail production API logs
wrangler tail --config apps/api/wrangler.jsonc

# Filter to specific paths
wrangler tail --config apps/api/wrangler.jsonc --search-str="/api/trpc"

# Tail staging
wrangler tail --config apps/api/wrangler.jsonc --env=staging

Logs include request metadata, console.log output, and uncaught exceptions.

Cloudflare Analytics

The Cloudflare dashboard provides per-worker metrics:

• Workers → Analytics – request count, error rate, CPU time, duration percentiles
• Workers → Logs – real-time and historical log streams
• Set up notification policies for error rate spikes or latency increases

Rollback

If a deploy introduces issues, roll back to the previous version:

# List recent deployments
wrangler deployments list --config apps/api/wrangler.jsonc

# Roll back to the previous stable version
wrangler rollback --config apps/api/wrangler.jsonc \
  --message="Reverting due to auth regression"

Repeat for each affected worker (apps/app/, apps/web/).

WARNING

Wrangler rollback reverts worker code but not database migrations. If a deploy included schema changes that the previous code depends on differently, you may need to deploy a fix-forward migration instead. See Database: Migrations.

Troubleshooting

Worker size limit – Cloudflare Workers have a 10 MB compressed size limit (3 MB on the free plan). If you hit it:

• Check for accidentally bundled dependencies
• Move large assets to R2 storage
• Ensure tree shaking is working (check for side-effect imports)

Database connection issues – If queries fail or time out:

• Verify Hyperdrive IDs in wrangler.jsonc match Terraform output
• Check Neon dashboard for connection limit exhaustion
• Confirm the database isn't in auto-suspended state (first request after suspend is slower)

Authentication problems – If sign-in fails in production:

• Verify BETTER_AUTH_SECRET is set (wrangler secret list --config apps/api/wrangler.jsonc)
• Check APP_ORIGIN matches your actual domain (affects cookie domain)
• Confirm OAuth redirect URIs include your production URL. See Social Providers

Cost Overview

Service	Free tier	Paid
Cloudflare Workers	100,000 requests/day	$5/month for 10M requests
Neon PostgreSQL	0.5 GB storage, auto-suspend compute	Scale-to-zero billing
Hyperdrive	Included with Workers paid plan	–
Resend	100 emails/day	$20/month for 50K emails

A typical growth-stage project runs around ~$45/month (Workers $5 + Neon $19 + Resend $20). Free tiers are sufficient through early production – monitor usage in the Cloudflare and Neon dashboards as traffic grows.