https://github.com/kostya/memory_cache

Super simple in memory key-value storage with expires for Crystal.
https://github.com/kostya/memory_cache

Last synced: 4 days ago
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Super simple in memory key-value storage with expires for Crystal.

• Host: GitHub
• URL: https://github.com/kostya/memory_cache
• Owner: kostya
• License: mit
• Created: 2016-01-31T02:32:19.000Z (almost 9 years ago)
• Default Branch: master
• Last Pushed: 2021-03-28T20:29:56.000Z (over 3 years ago)
• Last Synced: 2024-11-02T13:34:04.490Z (11 days ago)
• Language: Crystal
• Homepage:
• Size: 80.1 KB
• Stars: 29
• Watchers: 4
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# MemoryCache

[![CI](https://github.com/kostya/memory_cache/workflows/CI/badge.svg)](https://github.com/kostya/memory_cache/actions?query=workflow%3ACI)

Super simple in memory key-value storage with expires for Crystal.

## Installation

Add this to your application's `shard.yml`:

```yaml

dependencies:

  memory_cache:

    github: kostya/memory_cache

```

## Usage

```crystal

require "memory_cache"

cache = MemoryCache(String, Int32).new

cache.write("bla", 1)

p cache.read("bla") # => 1

cache.fetch("haha") { 2 }

p cache.read("haha") # => 2

cache.write("expired1", 1, expires_in: 1.second)

p cache.read("expired1") # => 1

sleep 1

p cache.read("expired1") # => nil

p cache.fetch("expired1", expires_in: 1.second) { 2 } # => 2

p cache.fetch("expired1", expires_in: 1.second) { 3 } # => 2

sleep 1

p cache.fetch("expired1", expires_in: 1.second) { 3 } # => 3

```