extern crate bitconch_jsonrpc_core as jsonrpc_core; use jsonrpc_core::*; use jsonrpc_core::futures::Future; #[derive(Clone, Default)] struct Meta(usize); impl Metadata for Meta {} pub fn main() { let mut io = MetaIoHandler::default(); io.add_method_with_meta("say_hello", |_params: Params, meta: Meta| { Ok(Value::String(format!("Hello World: {}", meta.0))) }); let request = r#"{"jsonrpc": "2.0", "method": "say_hello", "params": [42, 23], "id": 1}"#; let response = r#"{"jsonrpc":"2.0","result":"Hello World: 5","id":1}"#; let headers = 5; assert_eq!( io.handle_request(request, Meta(headers)).wait().unwrap(), Some(response.to_owned()) ); }