extern crate solana_jsonrpc_core as jsonrpc_core; use jsonrpc_core::*; fn main() { let mut io = IoHandler::new(); io.add_method("say_hello", |_: Params| { Ok(Value::String("Hello World!".to_owned())) }); let request = r#"{"jsonrpc": "2.0", "method": "say_hello", "params": [42, 23], "id": 1}"#; let response = r#"{"jsonrpc":"2.0","result":"hello","id":1}"#; assert_eq!(io.handle_request_sync(request), Some(response.to_owned())); }