1use jsonrpc_core::*;
2
3#[derive(Clone, Default)]
4struct Meta(usize);
5impl Metadata for Meta {}
6
7pub fn main() {
8 let mut io = MetaIoHandler::default();
9
10 io.add_method_with_meta("say_hello", |_params: Params, meta: Meta| async move {
11 Ok(Value::String(format!("Hello World: {}", meta.0)))
12 });
13
14 let request = r#"{"jsonrpc": "2.0", "method": "say_hello", "params": [42, 23], "id": 1}"#;
15 let response = r#"{"jsonrpc":"2.0","result":"Hello World: 5","id":1}"#;
16
17 let headers = 5;
18 assert_eq!(
19 io.handle_request_sync(request, Meta(headers)),
20 Some(response.to_owned())
21 );
22}