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Chain head subscription (#126)

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* Start WebSockets server.

* Expose non-working subscription.

* Dummy subscription for testing.

* Proper implementation with event loop.

* Finalized pubsub.

* Bump clap.

* Fix yml.

* Disable WS logs.

* Remove stale TransactionHash mention

* Fix build from nightly API change.

* Don't panic on invalid port.

* Bind server to random port.

* Send only best blocks.
This commit is contained in:
Tomasz Drwięga
2018-04-17 13:03:57 +02:00
committed by Gav Wood
parent eb6d142846
commit e253a4cb9f
18 changed files with 464 additions and 107 deletions
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substrate/demo/cli/src/lib.rs
+31 -12
View File
@@ -18,18 +18,21 @@
#![warn(missing_docs)]
extern crate env_logger;
extern crate ctrlc;
extern crate ed25519;
extern crate env_logger;
extern crate futures;
extern crate tokio_core;
extern crate triehash;
extern crate substrate_codec as codec;
extern crate substrate_runtime_io as runtime_io;
extern crate substrate_state_machine as state_machine;
extern crate substrate_client as client;
extern crate substrate_codec as codec;
extern crate substrate_primitives as primitives;
extern crate substrate_rpc;
extern crate substrate_rpc_servers as rpc;
extern crate demo_primitives;
extern crate substrate_runtime_io as runtime_io;
extern crate substrate_state_machine as state_machine;
extern crate demo_executor;
extern crate demo_primitives;
extern crate demo_runtime;
#[macro_use]
@@ -44,11 +47,12 @@ extern crate log;
pub mod error;
use std::sync::Arc;
use client::genesis;
use codec::Slicable;
use runtime_io::with_externalities;
use demo_runtime::{GenesisConfig, ConsensusConfig, CouncilConfig, DemocracyConfig,
SessionConfig, StakingConfig, BuildExternalities};
use client::genesis;
use futures::{Future, Sink, Stream};
struct DummyPool;
impl substrate_rpc::author::AuthorApi for DummyPool {
@@ -128,15 +132,30 @@ pub fn run<I, T>(args: I) -> error::Result<()> where
(primitives::block::Header::decode(&mut block.header.encode().as_ref()).expect("to_vec() always gives a valid serialisation; qed"), storage.into_iter().collect())
};
let client = Arc::new(client::new_in_mem(executor, prepare_genesis)?);
let mut core = ::tokio_core::reactor::Core::new().expect("Unable to spawn event loop.");
let address = "127.0.0.1:9933".parse().unwrap();
let handler = rpc::rpc_handler(client.clone(), DummyPool, client);
let server = rpc::start_http(&address, handler)?;
let _rpc_servers = {
let handler = || {
let chain = rpc::apis::chain::Chain::new(client.clone(), core.remote());
rpc::rpc_handler(client.clone(), chain, DummyPool)
};
let http_address = "127.0.0.1:9933".parse().unwrap();
let ws_address = "127.0.0.1:9944".parse().unwrap();
(
rpc::start_http(&http_address, handler())?,
rpc::start_ws(&ws_address, handler())?
)
};
if let Some(_) = matches.subcommand_matches("validator") {
info!("Starting validator.");
server.wait();
return Ok(());
let (exit_send, exit) = futures::sync::mpsc::channel(1);
ctrlc::CtrlC::set_handler(move || {
exit_send.clone().send(()).wait().expect("Error sending exit notification");
});
core.run(exit.into_future()).expect("Error running informant event loop");
return Ok(())
}
println!("No command given.\n");