Burni FHIR Server Documentation

Welcome to the official Burni FHIR Server documentation portal!

Burni is a flexible and high-performance HL7® FHIR® R4 (v4.0.1) server implementation built with Node.js, Express, and MongoDB, featuring out-of-the-box FHIR resource storage, comprehensive CRUD operations, search parameter resolution, and resource validation.

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Select Documentation Version

Browse our documentation according to your current deployment or adoption roadmap:

🟢 v2 (LTS) Stable Release Guide

Current Long Term Support Stable Branch (v2.8)

• Production-grade stability compatible with Node.js 18+ and Express 4
• Validated with 100% pass rate in AEGIS Touchstone Conformance testing
• Comprehensive guides for installation, server .env configuration, Mongoose resource mapping, and OpenAPI export
• Recommended for ongoing production maintenance and standard FHIR server deployments

👉 Explore v2 (LTS) Documentation

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🚀 v3 (Preview) Next Generation

Sneak Peek at the Upcoming Architecture (v3.0)

• Upgraded runtime foundation: Node.js >= 22, Express 5, and Mongoose 8
• Dual Database & Temporal Architecture: Segregate active resources from history and provenance audits for peak throughput
• Temporal Migration CLI: Automated database preflight checks and zero-downtime streaming data migration
• Enhanced FHIR System Parameters: Native engine support for _tag, _security, _profile, and full datetime offset precision
• Modern tooling and CI gates (Mocha 12, Chai 6, ESLint 10 Flat Config)

👉 Explore v3 (Preview) Documentation