AsyncEndpointServerSpi (Keyple Distributed Network Java Lib - 2.3.0)

```
public interface AsyncEndpointServerSpi
```
SPI of the server endpoint using an asynchronous network protocol.
You must provide an implementation of this interface if you plan to use a full duplex communication protocol, such as Web Sockets for example.
Following the receive of a message from the client, the endpoint must :
- Associate the session with the the accessible sessionId value using the method MessageDto.getSessionId() on the received message in order to be able to retrieve the session later.
- Retrieve the AsyncNodeServer node using the getAsyncNode() method of the associated distributed component, depending on your use case.
- Invoke the method AsyncNodeServer.onMessage(MessageDto) on the node.
- Invoke the method AsyncNodeServer.onClose(String) on the node after the session closing.
This endpoint interacts locally with a AsyncNodeServer node and remotely with a AsyncEndpointClientSpi endpoint.
Since:

2.0.0

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`sendMessage(MessageDto message)`	Invoked by the `AsyncNodeServer` node to send a `MessageDto` to the client. You have to : Find the opened session using the accessible sessionId value using the method `MessageDto.getSessionId()` on the provided message to send.

- Method Detail
  - sendMessage
```
void sendMessage(MessageDto message)
```
    Invoked by the AsyncNodeServer node to send a MessageDto to the client.
    You have to :
    
    Find the opened session using the accessible sessionId value using the method MessageDto.getSessionId() on the provided message to send.
    Serialize and send the MessageDto to the client.
    Parameters:
    
    message - The message to send.
    
    Since:
    
    2.0.0