resource
An early-stage Elixir library that provides a reusable framework for pooling expensive resources like database connections.
Resource
This is an early-stage library for managing pooled resources in Elixir applications. Think of it as a framework for handling things like database connections, API clients, or other services where you want to reuse expensive-to-create objects rather than creating a new one every time you need it.
The core idea is simple: when your application needs to talk to a database or external service, creating a fresh connection each time is slow and wasteful. A resource pool keeps a collection of pre-made connections ready to go. When you need one, you grab it from the pool; when you're done, you put it back. This library provides the scaffolding to make that pattern work smoothly in Elixir.
The project defines a "behaviour"—which in Elixir is a set of rules that other code can follow. This behaviour tells developers how to implement their own pooled resource handlers. It comes with a basic unpooled implementation as well, which is useful for testing or simpler use cases where pooling isn't needed. The README is refreshingly honest: the author acknowledges this is a first attempt and likely has bugs, which is fair for early-stage infrastructure code.
You'd use this if you're building an Elixir application that needs to manage multiple instances of something expensive (connections, workers, clients) and want a clean, reusable way to do it rather than rolling your own pooling logic. It's the kind of foundational library that sits quietly in the background, making sure your app can efficiently handle lots of concurrent requests without overwhelming external services or exhausting system resources.
Where it fits
- Implement a custom pooled resource handler for database connections using the provided behaviour.
- Use the unpooled implementation for testing or simpler cases where pooling isn't needed.
- Manage a pool of API client instances so requests reuse connections instead of creating new ones.
- Build reusable pooling logic for any expensive-to-create resource in an Elixir app.