# coap-rs
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A fast and stable [Constrained Application Protocol(CoAP)](https://tools.ietf.org/html/rfc7252) library implemented in Rust.
[Documentation](http://covertness.github.io/coap-rs/coap/index.html)
## Installation
First add this to your `Cargo.toml`:
```toml
[dependencies]
coap = "0.2"
```
Then, add this to your crate root:
```rust
extern crate coap;
```
## Example
### Server:
```rust
extern crate coap;
use std::io;
use coap::packet::*;
use coap::{CoAPServer, CoAPClient};
fn request_handler(req: Packet, _resp: CoAPClient) {
println!("Receive request: {:?}", req);
}
fn main() {
let addr = "127.0.0.1:5683";
let mut server = CoAPServer::new(addr).unwrap();
server.handle(request_handler).unwrap();
println!("Server up on {}", addr);
println!("Press any key to stop...");
io::stdin().read_line(&mut String::new()).unwrap();
println!("Server shutdown");
}
```
### Client:
```rust
extern crate coap;
use coap::packet::*;
use coap::CoAPClient;
fn main() {
let url = "coap://127.0.0.1:5683/Rust";
println!("Client request: {}", url);
let response: Packet = CoAPClient::request(url).unwrap();
println!("Server reply: {}", String::from_utf8(response.payload).unwrap());
}
```
## Benchmark
### Using one thread
![image](benches/one_thread_summary.png)
### Using eight thread
![image](benches/eight_thread_summary.png)
Tests were performed using [basho_bench](https://github.com/basho/basho_bench).