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 { /// Get One type. #[rpc(name = "getOne")] fn one(&self) -> Result; /// Adds two numbers and returns a result #[rpc(name = "setTwo")] fn set_two(&self, Two) -> Result<()>; /// Performs asynchronous operation #[rpc(name = "beFancy")] fn call(&self, One) -> FutureResult<(One, Two), Error>; } } struct RpcImpl; impl Rpc for RpcImpl { fn one(&self) -> Result { Ok(100) } fn set_two(&self, x: String) -> Result<()> { println!("{}", x); Ok(()) } fn call(&self, num: u64) -> FutureResult<(u64, String), Error> { ::future::finished((num + 999, "hello".into())) } } fn main() { let mut io = IoHandler::new(); let rpc = RpcImpl; io.extend_with(rpc.to_delegate()) }