Duckula: Type Safe Backend Services with Clojure, HTTP & Avro

on YouTube ↗30m

" summary

Duckula wires Avro-based validation into Clojure HTTP services so requests and messages share Avro schema validation and generated API docs (Swagger via an unstable artifact). It runs as data-driven configs (simple greeter example), serializes over RabbitMQ with adapters instead of codegen, and models business operations as RPC-style endpoints. Schedulers use Postgres advisory locks but keep work under 500ms and push jobs to RabbitMQ; this design runs in production and avoids long-held locks.

AI-written summary · about

" chapters (10)

1. 0:00Introduction
2. 1:56Duckula demo repository
3. 2:16Why choose Avro
4. 6:05RPC vs REST APIs
5. 10:59GraphQL thoughts
6. 12:42Data-driven Clojure APIs
7. 16:14Managing shared libraries
8. 21:49Monorepo strategy
9. 26:23Distributed locking with Logjar
10. 29:51Q&A wrap-up

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