simple-cache-rs 0.4.0

A simple rust implementation of HashMap with expiration control.
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# A simple in-mem cache for Rust

[![Docs](https://docs.rs/simple-cache-rs/badge.svg)](https://docs.rs/simple-cache-rs/)
[![Apache-2 licensed](https://img.shields.io/crates/l/simple-cache-rs.svg)](https://github.com/calvinbrown085/simple-cache-rs/blob/main/LICENSE)
[![CI](https://img.shields.io/github/workflow/status/calvinbrown085/simple-cache-rs/rust-unit-test)](https://github.com/calvinbrown085/simple-cache-rs/actions?query=workflow%3ARust)

A simple rust implementation of HashMap with expiration control.

## Example

### Without expiration:

```rust
use simple_cache_rs::SimpleCache;

let mut scache: SimpleCache<i32, String> = SimpleCache::new(None);

scache.insert(1, String::from("test"));
println!("{:?}", scache.get(&1));
```

### With expiration:

```rust
use simple_cache_rs::SimpleCache;
use std::time::Duration;
use std::thread; // For example purposes only

let timeout = Duration::new(1, 0);
let mut scache: SimpleCache<i32, String> = SimpleCache::new(Some(timeout));

scache.insert(1, String::from("test"));
assert_eq!(Some(String::from("test")), scache.get(&1));

thread::sleep(Duration::new(1, 1)); // For example purposes only
assert_ne!(Some(String::from("test")), scache.get(&1));
```