Deploy your Express app to Firebase Hosting
Step-by-step deployment help for Express apps on Firebase Hosting. We fix Express-specific deployment issues, configure Firebase Hosting, and get your app live. From $19.
Express issues we fix before deploying
Common Express problems that affect Firebase Hosting deployments.
No helmet middleware for security headers
Express apps without the helmet middleware are missing critical security headers like Content-Security-Policy, X-Content-Type-Options, and HSTS, leaving the app vulnerable to common web attacks.
Missing input validation and sanitization
Request body, query params, and URL params used directly without validation. No express-validator, zod, or joi — enabling injection attacks and unexpected crashes.
Unstructured error handling
No global error-handling middleware. Errors either crash the process, leak stack traces to clients, or get silently swallowed with no logging.
CORS set to allow all origins
The cors() middleware called with no options, defaulting to allowing requests from any website — a security risk for APIs that handle user data.
Firebase Hosting deployment issues we check for
Common Firebase Hosting problems that break Express apps in production.
Firestore security rules allow public read/write
AI tools set Firestore rules to allow read, write: if true for development and never lock them down, exposing the entire database to any authenticated or anonymous user.
Cloud Functions cold start on free Spark plan
Firebase Cloud Functions on the Spark plan have aggressive cold starts and limited concurrency, causing 5-15 second delays on first invocation.
firebase.json rewrites not matching SPA routes
Single-page app routing requires a rewrite rule in firebase.json to send all requests to index.html. AI tools either omit this or misconfigure it alongside Cloud Functions rewrites.
Storage rules expose private user files
Firebase Storage rules generated by AI allow any authenticated user to read any file, rather than restricting access to the file owner.
Start with a self-serve audit
Get a professional review of your Express project before deploying to Firebase Hosting.
External Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 vulnerability check
- SSL/TLS configuration analysis
- Security header assessment
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerability analysis
- Code quality review
- Dependency audit
- Architecture review
- Expert + AI code analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Expert + AI audit
A human expert assisted by AI reviews your code within 24 hours.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
How do I deploy a Express app to Firebase Hosting?
We handle Express deployments to Firebase Hosting end to end. Start with our code audit ($19) to identify deployment blockers specific to your Express project, then we configure Firebase Hosting, fix issues, and get your app live in production.
What Express issues affect Firebase Hosting deployments?
Express projects commonly have no helmet middleware for security headers and missing input validation and sanitization. On Firebase Hosting, these combine with firestore security rules allow public read/write and cloud functions cold start on free spark plan to cause deployment failures.
Can SpringCode deploy my Express project to Firebase Hosting?
Yes. We specialize in deploying Express applications to Firebase Hosting. We audit your codebase for Express-specific issues, configure Firebase Hosting correctly, and handle the full deployment so your app runs reliably in production.
What does Express deployment to Firebase Hosting cost?
Our code audit ($19) identifies all Firebase Hosting deployment blockers in your Express project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
Other techs on Firebase Hosting
Deploy Express elsewhere
Need help deploying Express to Firebase Hosting?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.