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// Copyright 2017 rust-ipfs-api Developers
//
// Licensed under the Apache License, Version 2.0, <LICENSE-APACHE or
// http://apache.org/licenses/LICENSE-2.0> or the MIT license <LICENSE-MIT or
// http://opensource.org/licenses/MIT>, at your option. This file may not be
// copied, modified, or distributed except according to those terms.
//
use futures::{Future, Stream};
use ipfs_api::IpfsClient;
use std::time::{Duration, Instant};
use tokio::runtime::current_thread::Runtime;
use tokio_timer::Interval;
static TOPIC: &'static str = "test";
fn get_client() -> IpfsClient {
println!("connecting to localhost:5001...");
IpfsClient::default()
}
// Creates an Ipfs client, and simultaneously publishes and reads from a pubsub
// topic.
//
fn main() {
let mut rt = Runtime::new().expect("tokio runtime");
// This block will execute a repeating function that sends
// a message to the "test" topic.
//
{
let client = get_client();
let publish = Interval::new(Instant::now(), Duration::from_secs(1))
.map_err(|e| eprintln!("{}", e))
.for_each(move |_| {
println!();
println!("publishing message...");
client
.pubsub_pub(TOPIC, "Hello World!")
.map_err(|e| eprintln!("{}", e))
});
println!();
println!("starting task to publish messages to ({})...", TOPIC);
rt.spawn(publish);
}
// This block will execute a future that suscribes to a topic,
// and reads any incoming messages.
//
{
let client = get_client();
let req = client.pubsub_sub(TOPIC, false);
println!();
println!("waiting for messages on ({})...", TOPIC);
let fut = req
.take(5)
.for_each(|msg| {
println!();
println!("received ({:?})", msg);
Ok(())
})
.map_err(|e| eprintln!("{}", e));
rt.block_on(fut).expect("successful response");
}
}
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