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cats-effect-resource

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Original

English

🇨🇳

Translation

Chinese

Cats Effect Resource (Scala)

Cats Effect Resource (Scala)

Quick start

快速开始

Model each resource with
```
Resource.make
```
or
```
Resource.fromAutoCloseable
```
and keep release idempotent.
Compose resources with
```
flatMap
```
,
```
mapN
```
,
```
parMapN
```
, or helper constructors; expose
```
Resource[F, A]
```
from APIs.
Use
```
Resource
```
at lifecycle boundaries and call
```
.use
```
only at the program edges.
Read
```
references/resource.md
```
for patterns, best practices, and API notes.

使用
```
Resource.make
```
或
```
Resource.fromAutoCloseable
```
为每个资源建模，并确保释放操作具有幂等性。
使用
```
flatMap
```
、
```
mapN
```
、
```
parMapN
```
或辅助构造器组合资源；在API中对外暴露
```
Resource[F, A]
```
类型。
在生命周期边界处使用
```
Resource
```
，仅在程序的入口/出口边缘调用
```
.use
```
方法。
阅读
```
references/resource.md
```
以了解相关模式、最佳实践及API说明。

Workflow

工作流程

Identify acquisition, use, and release steps; decide if acquisition is blocking.
Implement a
```
Resource[F, A]
```
constructor using the smallest needed typeclass.
Compose resources into higher-level resources and keep finalizers minimal.
Decide how cancelation and errors should influence release logic.
Run with
```
.use
```
at the boundary (IOApp, service startup) and avoid leaking raw
```
A
```
.

明确资源的获取、使用与释放步骤；判断资源获取操作是否为阻塞型。
使用所需最小的类型类实现
```
Resource[F, A]
```
构造器。
将基础资源组合为更高层级的资源，并保持终结器逻辑尽可能简洁。
确定取消操作与错误应如何影响资源释放逻辑。
在边界处（如IOApp、服务启动阶段）通过
```
.use
```
运行资源，避免直接暴露原始的
```
A
```
类型实例。

Usage guidance

使用指南

Prefer
```
Resource
```
over
```
try/finally
```
or
```
bracket
```
when composition and cancelation safety matter.
Use
```
IO.blocking
```
(or
```
Sync[F].blocking
```
) for acquisition and release when calling blocking JVM APIs.
For background fibers, use
```
Resource
```
or
```
Supervisor
```
to ensure cleanup on cancelation.

当需要保障组合性与取消安全性时，优先使用
```
Resource
```
而非
```
try/finally
```
或
```
bracket
```
。
调用阻塞式JVM API进行资源获取或释放时，使用
```
IO.blocking
```
（或
```
Sync[F].blocking
```
）。
对于后台协程，使用
```
Resource
```
或
```
Supervisor
```
确保在取消时能完成清理操作。

References

参考资料

Load
```
references/resource.md
```
for API details, patterns, and examples.
For Kotlin/Arrow parallels, see the
```
arrow-resource
```
skill.

Install this skill with

npx skills add https://github.com/alexandru/skills --skill cats-effect-resource

.

加载
```
references/resource.md
```
查看API细节、模式及示例。
若需了解Kotlin/Arrow的对应实现，可参考
```
arrow-resource
```
技能。

通过

npx skills add https://github.com/alexandru/skills --skill cats-effect-resource

安装此技能。