arrow-resource

Manage Kotlin resource lifecycles with Arrow Resource and ResourceScope.

61|3|Updated Mar 1, 2024

Search Tags:#lifecycle #kotlin #resource-management #typed-errors #arrow #context-parameters

Ready to run

npx skills add https://github.com/alexandru/social-publish --skill arrow-resource

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: arrow-resource
Source: https://github.com/alexandru/social-publish/tree/main/.agents/skills/arrow-resource
Command: npx skills add https://github.com/alexandru/social-publish --skill arrow-resource

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Provides a disciplined approach to resource management in Kotlin by modeling disposal as a first-class Resource with safe acquisition, use, and release to prevent leaks and use-after-close bugs.

Core Features & Use Cases

Safe lifecycle management of resources (files, streams, DB pools, HTTP clients, background scopes, multipart parts) using Arrow's Resource/ResourceScope APIs.
Support for composing resources, context-parameter style builders, and typed errors or cancellation via ExitCase.
Guidance for building companion Resource builders and using arrow-autoclose when only synchronous AutoCloseable isn't suspendable.

Quick Start

Create a Resource-based constructor for a component and run it inside resourceScope to guarantee timely cleanup.

Frequently Asked Questions about arrow-resource

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I safely manage resource lifecycles in Kotlin to prevent leaks?▼

Safe resource lifecycles in Kotlin are managed by modeling disposal as a first-class Resource, ensuring guaranteed acquisition, use, and release via resourceScope to prevent leaks and use-after-close bugs.

What is the best way to compose multiple resources like DB pools and HTTP clients in Kotlin?▼

Composing multiple resources like DB pools and HTTP clients is handled using Arrow's ResourceScope APIs, which safely compose dependencies and guarantee timely cleanup for all acquired components during cancellation or typed errors.

How does Arrow handle resource cleanup during cancellation or typed errors?▼

Arrow handles resource cleanup during cancellation or typed errors using ExitCase, which tracks finalization boundaries and ensures resources are safely released even when execution fails or cancels unexpectedly.

Can I use context parameters to build resource constructors in Kotlin?▼

Yes, you can use context-parameter style builders to construct resource APIs in Kotlin. Arrow Resource supports context helpers to define lifecycle boundaries and safely manage acquisition and release flows.

When should I use arrow-autoclose instead of standard AutoCloseable for Kotlin resource management?▼

Use arrow-autoclose when synchronous AutoCloseable is not suspendable. It provides an alternative for resource management when standard synchronous close behavior does not meet coroutine suspension requirements.