9 stable releases (5 major)

Uses old Rust 2015

10.1.0 Feb 13, 2019
10.0.1 Jan 31, 2019
9.0.0 Nov 5, 2018
8.0.0 Nov 21, 2017
0.1.0 Dec 9, 2016

#14 in #json-rpc

Download history 14/week @ 2021-06-02 18/week @ 2021-06-09 5/week @ 2021-06-16 5/week @ 2021-06-23 9/week @ 2021-06-30 14/week @ 2021-07-07 21/week @ 2021-07-14 5/week @ 2021-07-21 28/week @ 2021-07-28 27/week @ 2021-08-04 21/week @ 2021-08-11 9/week @ 2021-08-18 7/week @ 2021-08-25 2/week @ 2021-09-01 12/week @ 2021-09-08 4/week @ 2021-09-15

80 downloads per month
Used in jsonrpc-client-http

MIT license

140KB
4K SLoC

Parity JSON-RPC

Rust implementation of JSON-RPC 2.0 Specification. Transport-agnostic core and transport servers for http, ipc, websockets and tcp.

New! Support for clients.

Documentation

Sub-projects

Examples

Basic Usage (with HTTP transport)

use jsonrpc_http_server::jsonrpc_core::{IoHandler, Value, Params};
use jsonrpc_http_server::ServerBuilder;

fn main() {
	let mut io = IoHandler::default();
	io.add_method("say_hello", |_params: Params| async {
		Ok(Value::String("hello".to_owned()))
	});

	let server = ServerBuilder::new(io)
		.threads(3)
		.start_http(&"127.0.0.1:3030".parse().unwrap())
		.unwrap();

	server.wait();
}

Basic usage with derive

use jsonrpc_core::Result;
use jsonrpc_derive::rpc;

#[rpc]
pub trait Rpc {
	/// Adds two numbers and returns a result
	#[rpc(name = "add")]
	fn add(&self, u64, u64) -> Result<u64>;
}

pub struct RpcImpl;
impl Rpc for RpcImpl {
	fn add(&self, a: u64, b: u64) -> Result<u64> {
		Ok(a + b)
	}
}

fn main() {
	let mut io = jsonrpc_core::IoHandler::new();
	io.extend_with(RpcImpl.to_delegate())
}

Client support

use jsonrpc_core_client::transports::local;
use jsonrpc_core::{Error, IoHandler, Result};
use jsonrpc_derive::rpc;

/// Rpc trait
#[rpc]
pub trait Rpc {
	/// Returns a protocol version
	#[rpc(name = "protocolVersion")]
	fn protocol_version(&self) -> Result<String>;

	/// Adds two numbers and returns a result
	#[rpc(name = "add", alias("callAsyncMetaAlias"))]
	fn add(&self, a: u64, b: u64) -> Result<u64>;

	/// Performs asynchronous operation
	#[rpc(name = "callAsync")]
	fn call(&self, a: u64) -> FutureResult<String, Error>;
}

struct RpcImpl;

impl Rpc for RpcImpl {
	fn protocol_version(&self) -> Result<String> {
		Ok("version1".into())
	}

	fn add(&self, a: u64, b: u64) -> Result<u64> {
		Ok(a + b)
	}

	fn call(&self, _: u64) -> FutureResult<String, Error> {
		future::ok("OK".to_owned())
	}
}

fn main() {
	let mut io = IoHandler::new();
	io.extend_with(RpcImpl.to_delegate());

	let fut = {
		let (client, server) = local::connect::<gen_client::Client, _, _>(io);
		client.add(5, 6).map(|res| println!("5 + 6 = {}", res)).join(server)
	};
	fut.wait().unwrap();
}

Dependencies

~2–2.9MB
~60K SLoC