Deploy your FastAPI app to AWS
Step-by-step deployment help for FastAPI apps on AWS. We fix FastAPI-specific deployment issues, configure AWS, and get your app live. From $19.
FastAPI issues we fix before deploying
Common FastAPI problems that affect AWS 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.
AWS deployment issues we check for
Common AWS problems that break FastAPI apps in production.
IAM policies with wildcard permissions
AI-generated infrastructure code grants Action: '*' and Resource: '*' permissions, violating least-privilege principles and creating critical security exposure.
Security groups open to 0.0.0.0/0
Database and internal service security groups allow inbound traffic from any IP address, exposing RDS instances and backend services to the public internet.
S3 bucket policy allows public read
AI tools configure S3 buckets with public-read ACLs for convenience, inadvertently exposing private user data and application secrets.
Lambda cold starts degrading API performance
Infrequently called Lambda functions experience 3-10 second cold starts. AI-generated architectures don't configure provisioned concurrency or optimize bundle size.
Start with a self-serve audit
Get a professional review of your FastAPI project before deploying to AWS.
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 AWS?
We handle FastAPI deployments to AWS end to end. Start with our code audit ($19) to identify deployment blockers specific to your FastAPI project, then we configure AWS, fix issues, and get your app live in production.
What FastAPI issues affect AWS deployments?
FastAPI projects commonly have blocking calls inside async endpoints and missing authentication on endpoints. On AWS, these combine with iam policies with wildcard permissions and security groups open to 0.0.0.0/0 to cause deployment failures.
Can SpringCode deploy my FastAPI project to AWS?
Yes. We specialize in deploying FastAPI applications to AWS. We audit your codebase for FastAPI-specific issues, configure AWS correctly, and handle the full deployment so your app runs reliably in production.
What does FastAPI deployment to AWS cost?
Our code audit ($19) identifies all AWS 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 AWS
Deploy FastAPI elsewhere
Need help deploying FastAPI to AWS?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.