Qrius for developers
QR code API developer guides
Build dynamic QR workflows that stay fast under load and minimise personal data. Each guide includes implementation details, failure cases, and production trade-offs.
Build dynamic QR codes with Node.js and Fastify
Create, update, list, and delete dynamic QR codes through the Qrius REST API.
Read guide →API integrationGenerate QR codes in bulk through the API
Use bounded concurrency, retries, and rate-limit handling for large QR batches.
Read guide →PerformanceBuild sub-50ms QR redirects with Redis
A practical two-layer cache design for fast, observable redirect infrastructure.
Read guide →Privacy engineeringHash IP addresses for GDPR-safe analytics
Implement rotating salts, data minimisation, retention, and useful aggregate metrics.
Read guide →Ready to use the API?
Create an account, issue an API key, and follow the fundamentals guide for your first dynamic code.