airport-go: Build Airport-compatible Arrow Flight Servers in Go

Hey everyone,

We’re excited to share a new open-source project from the community: airport-go — a Go package for building Apache Arrow Flight servers compatible with the DuckDB Airport Extension.

If you’re building systems on top of Arrow Flight or developing Airport-compatible backends, this is a really useful addition to the ecosystem.

🧰 What is airport-go?

airport-go is a high-level, ergonomic API that lets you implement Airport-compatible backends without embedding DuckDB. It includes:

• Simple API — build a Flight server in under 30 lines of Go
• Fluent catalog builder for schemas, tables, and functions
• Dynamic catalogs with CREATE/DROP/ALTER support
• Bearer token authentication
• Efficient streaming (no rebatching, preserves Arrow batch sizes)
• Context-aware cancellation
• Native gRPC integration (register servers, manage TLS, lifecycle)

The repository includes complete examples for:

• basic servers
• authenticated servers
• dynamic catalogs
• DDL operations (CREATE/DROP/ALTER)
• DML operations (INSERT/UPDATE/DELETE)

🚧 What’s coming next?

Future plans include structured helpers for predicate pushdown to make it easier to parse and apply filters pushed down from DuckDB.

🔗 Get airport-go

👉 GitHub: https://github.com/hugr-lab/airport-go

If you’re working with Arrow Flight or the DuckDB Airport Extension, definitely give it a look. We expect it to unlock some compelling use cases in the broader Query.Farm ecosystem.

💬 Feedback welcome

We always love seeing new tools, extensions, and backend implementations emerge. If you’re building something Airport-compatible, reach out or share what you’re working on—join the discussion at Query.Farm.

Thanks and happy holidays! — The Query.Farm Team