web3 0.3.1

Ethereum JSON-RPC client.
Documentation 
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extern crate tokio_core;
extern crate web3;

use web3::futures::Future;

const MAX_PARALLEL_REQUESTS: usize = 64;

fn main() {
    let mut event_loop = tokio_core::reactor::Core::new().unwrap();

    let web3 = web3::Web3::new(
        web3::transports::Http::with_event_loop(
            "http://localhost:8545",
            &event_loop.handle(),
            MAX_PARALLEL_REQUESTS,
        ).unwrap(),
    );
    let accounts = web3.eth().accounts().map(|accounts| {
        println!("Accounts: {:?}", accounts);
    });

    event_loop.run(accounts).unwrap();
}