The tcp json server example not worked!

[duanwujie]

use jsonrpc_tcp_server::ServerBuilder;
use jsonrpc_core::*;
fn tcp_server() {

    let mut io = IoHandler::default();
    io.add_sync_method("say_hello", |_params| {
        Ok(Value::String("hello".to_string()))
    });
    let server = ServerBuilder::new(io)
        .start(&"0.0.0.0:3030".parse().unwrap())
        .expect("Server must start with no issues.");

    server.wait();
}

The server.wait() didn't blocked , json_tcp_server version is 18.0.0

[manuelinfosec]

I figured this by bumping down to 16.0.0 version, but now it isn't accepting new requests.

[ilya-bobyr]

It seems to be working if I switch to jsonrpc_http_server.
Version 16.0.0 uses a very old tokio library.

[vCassius]

same question