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use std::sync::Arc;
use serde::{Deserialize, Serialize};
use serde_json::Value;
use smol::net::TcpListener;
use karyon_jsonrpc::{register_service, JsonRPCError, Server, ServerConfig};
struct Calc {
version: String,
}
#[derive(Deserialize, Serialize)]
struct Req {
x: u32,
y: u32,
}
#[derive(Deserialize, Serialize)]
struct Pong {}
impl Calc {
async fn ping(&self, _params: Value) -> Result<Value, JsonRPCError> {
Ok(serde_json::json!(Pong {}))
}
async fn add(&self, params: Value) -> Result<Value, JsonRPCError> {
let params: Req = serde_json::from_value(params)?;
Ok(serde_json::json!(params.x + params.y))
}
async fn sub(&self, params: Value) -> Result<Value, JsonRPCError> {
let params: Req = serde_json::from_value(params)?;
Ok(serde_json::json!(params.x - params.y))
}
async fn version(&self, _params: Value) -> Result<Value, JsonRPCError> {
Ok(serde_json::json!(self.version))
}
}
fn main() {
env_logger::init();
let ex = Arc::new(smol::Executor::new());
smol::block_on(ex.clone().run(async {
// Creates a new server
let listener = TcpListener::bind("127.0.0.1:60000").await.unwrap();
let config = ServerConfig::default();
let server = Server::new(listener, config, ex);
// Register the Calc service
register_service!(Calc, ping, add, sub, version);
let calc = Calc {
version: String::from("0.1"),
};
server.attach_service(calc).await;
// Start the server
server.start().await.unwrap();
}));
}
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