Project study / Developer Tools
Published
idempo
API idempotency middleware and adapters for Node.js services.
A backend library for safer retries and duplicate request handling.
System portrait / documented flow
Diagram routes and groups
Idempotency path
- Service request
- Request fingerprint
- Redis coordination
- Replay-safe response
02 / Problem and response
Make safe retries easier to add to Node services.
Constraint
Distributed systems frequently receive duplicate requests, and teams often rebuild the same protections from scratch.
Approach
idempo packages common idempotency patterns into reusable middleware and service adapters.
03 / Architecture and boundaries
Request identity and shared replay state protect side-effecting paths.
Middleware-oriented integration for service frameworks.
Redis-backed request coordination and replay behavior.
Middleware Fit
The library is shaped to drop into service stacks without forcing a new programming model.
Coordination Layer
Request keys and replay behavior are coordinated through a simple shared persistence model.
- 01
The library emphasizes clean integration points over deep framework lock-in.
04 / Package surface
A small interface, in use.
Install
npm install idempoUsage
import { createIdempo } from "idempo";
const idempo = createIdempo({ store: redisStore });05 / Current state and next work
What exists, and what follows.
Published
The published middleware library continues to add adapters and usage examples.
Started 2024 · Last updated Maintained
Next direction
- Expand adapter coverage and example implementations.
Reliability patterns gain adoption when they feel natural to the existing service architecture.
Working lesson / idempo