46 lines
1.4 KiB
Rust
46 lines
1.4 KiB
Rust
// Copyright 2015, 2016 Ethcore (UK) Ltd.
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// This file is part of Parity.
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// Parity is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Parity is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Parity. If not, see <http://www.gnu.org/licenses/>.
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use rustc_serialize::json::Json;
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use std::io::Read;
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use hyper::Client;
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use hyper::header::Connection;
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use std::str::FromStr;
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pub struct PriceInfo {
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pub ethusd: f32,
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}
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impl PriceInfo {
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pub fn get() -> Option<PriceInfo> {
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let mut body = String::new();
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// TODO: Handle each error type properly
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Client::new()
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.get("http://api.etherscan.io/api?module=stats&action=ethprice")
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.header(Connection::close())
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.send().ok()
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.and_then(|mut s| s.read_to_string(&mut body).ok())
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.and_then(|_| Json::from_str(&body).ok())
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.and_then(|json| json.find_path(&["result", "ethusd"])
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.and_then(|obj| match *obj {
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Json::String(ref s) => Some(PriceInfo {
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ethusd: FromStr::from_str(s).unwrap()
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}),
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_ => None
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}))
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}
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}
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