Deploy your FastAPI app to Railway
Step-by-step deployment help for FastAPI apps on Railway. We fix FastAPI-specific deployment issues, configure Railway, and get your app live. From $19.
FastAPI issues we fix before deploying
Common FastAPI problems that affect Railway deployments.
Blocking calls inside async endpoints
Synchronous database calls, file operations, or HTTP requests inside async def endpoints block the entire event loop, making your API unresponsive under load.
Missing authentication on endpoints
API routes that handle sensitive data or actions without any auth middleware — Depends() for authentication is simply not included in the route definition.
No CORS configuration
CORSMiddleware either missing (blocking all cross-origin requests) or set to allow_origins=['*'] (allowing any website to call your API).
Pydantic models without validation constraints
Request models that accept any string length, any number range, and any format. No Field() constraints, so invalid data flows through your system.
Railway deployment issues we check for
Common Railway problems that break FastAPI apps in production.
Nixpacks detects the wrong build system
Monorepo projects or apps with multiple package managers confuse Nixpacks auto-detection, resulting in incorrect build commands and failed deployments.
Volume data lost on redeploy
AI-generated apps store uploaded files or SQLite databases on the filesystem without configuring Railway volumes, losing all data on each new deployment.
Private networking misconfigured between services
Internal service communication uses public URLs instead of Railway's private network (*.railway.internal), adding latency and exposing internal APIs publicly.
Health check endpoint missing
Railway restarts services that fail health checks. AI-generated servers often lack a /health endpoint, causing unnecessary restart loops.
Start with a self-serve audit
Get a professional review of your FastAPI project before deploying to Railway.
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 FastAPI app to Railway?
We handle FastAPI deployments to Railway end to end. Start with our code audit ($19) to identify deployment blockers specific to your FastAPI project, then we configure Railway, fix issues, and get your app live in production.
What FastAPI issues affect Railway deployments?
FastAPI projects commonly have blocking calls inside async endpoints and missing authentication on endpoints. On Railway, these combine with nixpacks detects the wrong build system and volume data lost on redeploy to cause deployment failures.
Can SpringCode deploy my FastAPI project to Railway?
Yes. We specialize in deploying FastAPI applications to Railway. We audit your codebase for FastAPI-specific issues, configure Railway correctly, and handle the full deployment so your app runs reliably in production.
What does FastAPI deployment to Railway cost?
Our code audit ($19) identifies all Railway deployment blockers in your FastAPI project. Full deployment assistance is scoped with a fixed quote after the audit — no hourly billing or surprise charges.
Related resources
Other techs on Railway
Deploy FastAPI elsewhere
Need help deploying FastAPI to Railway?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.