Switch to jsonrpsee

Fixes #1275

client/src/transports/tcp.rs

@@ -0,0 +1,21 @@
+use futures_util::stream::StreamExt;
+use jsonrpsee::core::client::{TransportReceiverT, TransportSenderT};
+use jsonrpsee::core::Error;
+use tokio::net::{TcpStream, ToSocketAddrs};
+use tokio_util::codec::Decoder;
+
+use super::stream_codec::StreamCodec;
+use super::{Receiver, Sender};
+
+/// Connect to a JSON-RPC TCP server.
+pub async fn connect(
+    socket: impl ToSocketAddrs,
+) -> Result<(impl TransportSenderT + Send, impl TransportReceiverT + Send), Error> {
+    let connection = TcpStream::connect(socket).await?;
+    let (sink, stream) = StreamCodec::stream_incoming().framed(connection).split();
+
+    let sender = Sender { inner: sink };
+    let receiver = Receiver { inner: stream };
+
+    Ok((sender, receiver))
+}