Presigned URL API

Stateless microservice that generates time-limited pre-signed AWS S3 URLs for secure file uploads, used by the Dashboard for document uploads (KYC, title deeds) and the City Builder for asset uploads. Each URL expires after 15 minutes and is scoped to a specific S3 path. If down, all file upload workflows across the platform fail silently — users see upload buttons but files never reach S3. Contact Parth for S3 bucket configuration or CORS issues.

Operational

Environment

prod

Response Time

Average

215ms

Min

129ms

Max

1360ms

p99

1290ms

Uptime History

120 checks agoNow

Direct Links

Troubleshooting

Possible causes:

AWS S3 credentials expired or rotated— Fix: Check IAM role/credentials for S3 access; rotate keys if expired
S3 bucket CORS misconfigured— Fix: Verify CORS settings on the target S3 bucket allow the frontend origin
Polytrade infrastructure hosting issue— Fix: Contact Parth — hosted on legacy Polytrade infrastructure