Created
June 30, 2021 18:47
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Async in actix websocket actor
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| pub struct WsActor; | |
| #[derive(Debug)] | |
| struct BinResponse(websocket::Response); | |
| #[derive(Message)] | |
| #[rtype(result = "Result<(), ()>")] | |
| struct Router(Bytes); | |
| impl Actor for WsActor { | |
| type Context = ws::WebsocketContext<Self>; | |
| fn started(&mut self, ctx: &mut Self::Context) { | |
| println!("Websocket is started!!!!!"); | |
| ctx.ping(b""); | |
| } | |
| } | |
| impl StreamHandler<BinResponse> for WsActor { | |
| fn handle(&mut self, msg: BinResponse, ctx: &mut Self::Context) { | |
| let resp = msg.0; | |
| let b = resp.write_to_bytes().unwrap(); | |
| ctx.binary(b); | |
| } | |
| } | |
| impl StreamHandler<Result<ws::Message, ws::ProtocolError>> for WsActor { | |
| fn handle(&mut self, msg: Result<ws::Message, ws::ProtocolError>, ctx: &mut Self::Context) { | |
| println!("WS: {:?}", msg); | |
| match msg { | |
| Ok(ws::Message::Ping(msg)) => { | |
| ctx.pong(&msg); | |
| } | |
| Ok(ws::Message::Text(_)) => { | |
| ctx.text("No text message allowed.".to_string()); | |
| } | |
| Ok(ws::Message::Binary(bin)) => ctx.notify(Router(bin)), | |
| Ok(ws::Message::Close(reason)) => { | |
| ctx.close(reason); | |
| ctx.stop(); | |
| } | |
| _ => (), | |
| } | |
| } | |
| } | |
| impl Handler<Router> for WsActor { | |
| type Result = Result<(), ()>; | |
| fn handle(&mut self, msg: Router, ctx: &mut Self::Context) -> Self::Result { | |
| let fut = async move { | |
| let bytes = msg.0; | |
| let mut wrapper = websocket::Request::new(); | |
| let mut stream = CodedInputStream::from_bytes(bytes.as_ref()); | |
| let mut error_reply = websocket::Response::new(); | |
| error_reply.field_type = ResponseType::ResponseTypeNone; | |
| error_reply.code = AppError::ProtobufError { cause: "".to_owned() }.error_code(); | |
| error_reply.set_none_response(NoneResp::new()); | |
| if let Err(e) = wrapper.merge_from(&mut stream) { | |
| common::error!("failed to parse protobuf; err = {:?}", e); | |
| error_reply.error_message = format!("failed to parse protobuf: {:?}", e); | |
| return error_reply; | |
| } | |
| match wrapper.field_type { | |
| RequestType::TypeHelloReq => handlers::hello(wrapper.get_hello_request()).await, | |
| _ => handlers::hello(wrapper.get_hello_request()).await, | |
| } | |
| .unwrap_or_else(|err| { | |
| error_reply.error_message = format!("failed to handle websocket request: {:?}", err); | |
| error_reply | |
| }) | |
| }; | |
| ctx.add_stream(stream::once(async { BinResponse(fut.await) })); | |
| Ok(()) | |
| } | |
| } | |
| impl WsActor { | |
| pub fn new() -> Self { | |
| WsActor | |
| } | |
| } |
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