coap-rs

A Constrained Application Protocol(CoAP) library implemented in Rust.

Installation

First add this to your Cargo.toml:

toml [dependencies] coap = "0.1.0"

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 addr = "127.0.0.1:5683"; let request = "test";

let client = CoAPClient::new(addr).unwrap();
let mut packet = Packet::new();
packet.header.set_version(1);
packet.header.set_type(PacketType::Confirmable);
packet.header.set_code("0.01");
packet.header.set_message_id(1);
packet.set_token(vec!(0x51, 0x55, 0x77, 0xE8));
packet.add_option(OptionType::UriPath, request.to_string().into_bytes());
client.send(&packet).unwrap();
println!("Client request: coap://{}/{}", addr, request);

let response = client.receive().unwrap();
println!("Server reply: {}", String::from_utf8(response.payload).unwrap());

} ```