Function psup_json_rpc::serve

pub async fn serve<S, R, W, I, O, A>(
    server: Server<'_, S>, 
    state: &S, 
    reader: ReadHalf<R>, 
    writer: WriteHalf<W>, 
    request: I, 
    response: O, 
    answer: A
) -> Result<(), Box<dyn Error + Send + Sync>> where
    R: AsyncRead,
    W: AsyncWrite,
    S: Send + Sync,
    I: Fn(&Request),
    O: Fn(&Response),
    A: Fn(Response) -> Result<Option<Message>, Box<dyn Error + Send + Sync>>, 

Read and write line-delimited JSON from a stream executing via a JSON RPC server.

Request and response functions are useful for logging service calls; the answer function can be used to handle replies from a remote method call.