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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.
//
extern crate futures;
extern crate ipfs_api;
extern crate tokio_core;
extern crate tokio_timer;
use futures::stream::Stream;
use ipfs_api::{response, IpfsClient};
use std::thread;
use std::time::Duration;
use tokio_core::reactor::{Core, Handle};
use tokio_timer::Timer;
static TOPIC: &'static str = "test";
fn get_client(handle: &Handle) -> IpfsClient {
println!("connecting to localhost:5001...");
IpfsClient::default(handle)
}
// Creates an Ipfs client, and simultaneously publishes and reads from a pubsub
// topic.
//
fn main() {
// This block will execute a repeating function that sends
// a message to the "test" topic.
//
thread::spawn(move || {
let mut event_loop = Core::new().expect("expected event loop");
let client = get_client(&event_loop.handle());
let timer = Timer::default();
let publish = timer
.interval(Duration::from_secs(1))
.map_err(|_| response::Error::from("timeout error"))
.for_each(move |_| {
println!();
println!("publishing message...");
client.pubsub_pub(TOPIC, "Hello World!")
});
println!();
println!("starting task to publish messages to ({})...", TOPIC);
event_loop
.run(publish)
.expect("expected the publish task to start");
});
// This block will execute a future that suscribes to a topic,
// and reads any incoming messages.
//
{
let mut event_loop = Core::new().expect("expected event loop");
let client = get_client(&event_loop.handle());
let req = client.pubsub_sub(TOPIC, false);
println!();
println!("waiting for messages on ({})...", TOPIC);
event_loop
.run(req.take(5).for_each(|msg| {
println!();
println!("received ({:?})", msg);
Ok(())
}))
.expect("expected a valid response");
}
}
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