openethereum/parity/price_info.rs
2016-03-28 00:49:35 +02:00

40 lines
918 B
Rust

use rustc_serialize::json::Json;
use std::io::Read;
use hyper::Client;
use hyper::header::Connection;
use std::str::FromStr;
pub struct PriceInfo {
pub ethusd: f32,
}
impl PriceInfo {
pub fn get() -> Option<PriceInfo> {
let mut body = String::new();
// TODO: actually bother dicking around with the errors and make it proper.
match match match Client::new()
.get("http://api.etherscan.io/api?module=stats&action=ethprice")
.header(Connection::close())
.send() {
Err(_) => { return None; },
Ok(mut s) => s.read_to_string(&mut body),
} {
Err(_) => { return None; },
_ => { Json::from_str(&body) }
} {
Err(_) => { return None; },
Ok(json) => {
let ethusd: f32 = if let Some(&Json::String(ref s)) = json.find_path(&["result", "ethusd"]) {
FromStr::from_str(&s).unwrap()
} else {
return None;
};
Some(PriceInfo {
ethusd: ethusd,
})
}
}
}
}