Fix Your AI-Built UploadThing Integration
File upload service built for TypeScript apps with built-in S3 storage. AI tools misconfigure file routers, miss auth checks, and break the upload flow.
Common UploadThing issues we find
Problems specific to AI-generated UploadThing integrations.
File router middleware not checking authentication
AI-generated file routers skip auth checks in the middleware function, allowing unauthenticated users to upload files to your storage.
File size and type limits too permissive
Generated code uses generous defaults or omits file type restrictions, allowing users to upload any file type up to the maximum size limit.
onUploadComplete callback not persisting file metadata
AI tools log the upload URL in the callback but don't save it to the database, meaning the file exists in storage but your app has no reference to it.
Using deprecated API patterns
Generated code uses older UploadThing API patterns (createUploadthing, generateComponents) that have changed across major versions, causing type errors and runtime failures.
Client-side upload component not handling errors
AI tools render the UploadButton or UploadDropzone without onUploadError handlers, giving users no feedback when uploads fail.
Start with a self-serve audit
Get a professional review of your UploadThing integration at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern 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.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Why are my UploadThing uploads failing silently?
AI tools typically don't add onUploadError handlers to upload components, so failures produce no user feedback. Additionally, missing or incorrect UPLOADTHING_SECRET and UPLOADTHING_APP_ID environment variables cause uploads to fail without clear errors.
How do I secure my UploadThing file router?
The middleware function in your file router is where you check authentication and authorization. AI tools usually leave it as an empty function that allows all uploads. You need to verify the user's session and return user metadata for the onUploadComplete callback.
Are my uploaded files accessible to anyone with the URL?
By default, UploadThing URLs are publicly accessible. If you need access control, you must implement it in your application layer by not exposing URLs directly and proxying file access through an authenticated endpoint.
Related resources
Other Integrations
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