• includes refactoring of the server part so that we can reuse as much as possible

We introduce 2 new concepts for the client part:

• client endpoints; using the same programming model as server endpoints, except that annotated with `@WebSocketConnection` and built around the `WebSocketClientConnection` (unlike `@WebSocket` and `WebSocketConnection` on the server)
• WebSocket connector API - this API is used to configure and create new connections

```java
@WebSocket(path = "/end/

{name}")
public class ServerEndpoint {
@OnTextMessage
String echo(String message, WebSocketConnection connection, @PathParam String name) { // do something with connection and name return message; }
}

@WebSocketClient(path = "/end/{name}

")
public class ClientEndpoint {
@OnTextMessage
String echo(String message, WebSocketClientConnection connection, @PathParam String name)

{ // do something with connection and name return message; }

}
```

The `WebSocketConnector` can be injected in any bean:

```java
@Singleton
public class Service {

@Inject
WebSocketConnector<ClientEndpoint> connector;

void connectToClientEndpoint()

{ connector. .baseUri(uri) // base URI is configurable per endpoint .pathParam("name", "Lu") .addHeader("X-Test", "foo") .connectAndAwait(); }

}
```

1. 1. TODO

• [x] add more tests
• [x] fail the build if `@OnTextMessage.broadcast()=true`/ `@OnBinaryMessage.broadcast()=true` on a client endpoint
• [x] Dev UI update (just make sure the server part works fine)

~_{-`@WebSocketClient#autoConnect()` - connect the client automatically when the app starts}~ removed from the list, not a high priority, maybe later...

NOTE: We decided to include the client part in the same extension as the server part. Therefore, we will get rid of `extensions/websockets-next/server` in a follow-up PR; i.e. the deployment module will be moved from `extensions/websockets-next/server/deployment` to `extensions/websockets-next/deployment` and the runtime module will be moved from `extensions/websockets-next/server/runtime` to `extensions/websockets-next/runtime`.