#json-rpc #rpc #macro #json

yanked solana-jsonrpc-macros

Helper macros for jsonrpc-core

Uses old Rust 2015

0.4.0 Dec 7, 2018
0.3.0 Oct 15, 2018
0.2.0 Oct 11, 2018
0.1.3 Oct 9, 2018
0.1.1 Sep 28, 2018

#257 in #json-rpc

MIT license

105KB
2.5K SLoC

High level, typed wrapper for jsonrpc_core.

Enables creation of "Service" objects grouping a set of RPC methods together in a typed manner.

Example

extern crate solana_jsonrpc_core as jsonrpc_core;
#[macro_use] extern crate solana_jsonrpc_macros as jsonrpc_macros;
use jsonrpc_core::{IoHandler, Error, Result};
use jsonrpc_core::futures::future::{self, FutureResult};
build_rpc_trait! {
	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")]
		fn add(&self, u64, u64) -> Result<u64>;

		/// Performs asynchronous operation
		#[rpc(name = "callAsync")]
		fn call(&self, 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()).into()
	}
}

fn main() {
     let mut io = IoHandler::new();
     let rpc = RpcImpl;

     io.extend_with(rpc.to_delegate());
}

Dependencies

~1.8–3MB
~57K SLoC