# snowflake-rs
A simple to use rust package to generate or parse Twitter snowflake IDs,generate time sortable 64 bits unique ids for distributed systems (inspired from twitter snowflake)
[](https://github.com/houseme/snowflake-rs/actions?query=workflow%3ABuild)
[](https://crates.io/crates/snowflake_me)
[](https://docs.rs/snowflake_me/)
[](LICENSE-APACHE)
A distributed unique ID generator inspired by [Twitter's Snowflake](https://blog.twitter.com/2010/announcing-snowflake).
This is a Rust implementation of the original [houseme/snowflake](https://github.com/houseme/snowflake), which is written in Go.
A Snowflake ID is composed of
```
39 bits for time in units of 10 msec
8 bits for a sequence number
16 bits for a machine id
```
## Install
Add the following to your `Cargo.toml`:
```toml
[dependencies]
snowflake_me = "0.1"
```
## Quickstart
```rust
use snowflake_me::Snowflake;
let mut sf = Snowflake::new().unwrap();
let next_id = sf.next_id().unwrap();
println!("{}", next_id);
```
## Benchmarks
Run them yourself with `cargo bench`.
#### 1、Benchmarks were run on a MacBook Pro (16-inch, 2019) with a 2,4GHz i9 and 64 GB memory.
```
test bench_decompose ... bench: 651 ns/iter (+/- 251)
test bench_new ... bench: 795,722 ns/iter (+/- 371,556)
test bench_next_id ... bench: 36,652 ns/iter (+/- 1,105)
```
#### 2、Benchmarks were run on a MacBook Pro (15-inch, 2017) with a 2,8GHz i7 and 16 GB memory.
```
test bench_decompose ... bench: 1,066 ns/iter (+/- 132)
test bench_new ... bench: 738,129 ns/iter (+/- 318,192)
test bench_next_id ... bench: 37,390 ns/iter (+/- 499)
```
## License
Licensed under either of
* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
### Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.