java.lang.Object
- io.micronaut.configuration.graphql.ws.GraphQLWsController

@ServerWebSocket(value="${graphql.graphql-ws.path:/graphql-ws}",
                 subprotocols="graphql-ws")
@Requires(property="graphql.graphql-ws.enabled",
          value="true",
          defaultValue="false")
public class GraphQLWsController
extends java.lang.Object

The GraphQL websocket controller handling GraphQL requests. Implementation of https://github.com/apollographql/subscriptions-transport-ws/blob/master/PROTOCOL.md

Since:: 1.3

Constructor Summary

Constructors
Constructor	Description
`GraphQLWsController(GraphQLWsMessageHandler messageHandler, io.micronaut.configuration.graphql.ws.GraphQLWsState state, GraphQLJsonSerializer graphQLJsonSerializer)`	Default constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`org.reactivestreams.Publisher<GraphQLWsResponse>`	`onClose(io.micronaut.websocket.WebSocketSession session, io.micronaut.websocket.CloseReason closeReason)`	Called when the websocket is closed.
`org.reactivestreams.Publisher<GraphQLWsResponse>`	`onError(io.micronaut.websocket.WebSocketSession session, java.lang.Throwable t)`	Called when there is an error with the websocket, this probably means the connection is lost, but hasn't been properly closed.
`org.reactivestreams.Publisher<GraphQLWsResponse>`	`onMessage(java.lang.String message, io.micronaut.websocket.WebSocketSession session)`	Called on every message received from the client.
`void`	`onOpen(io.micronaut.websocket.WebSocketSession session, io.micronaut.http.HttpRequest request)`	Called when the connection is opened.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GraphQLWsController

public GraphQLWsController(GraphQLWsMessageHandler messageHandler,
                           io.micronaut.configuration.graphql.ws.GraphQLWsState state,
                           GraphQLJsonSerializer graphQLJsonSerializer)

Default constructor.

Parameters:: messageHandler - the GraphQLWsMessageHandler instance; state - the GraphQLWsState instance; graphQLJsonSerializer - the GraphQLJsonSerializer instance

Method Detail

onOpen
```
@OnOpen
public void onOpen(io.micronaut.websocket.WebSocketSession session,
                   io.micronaut.http.HttpRequest request)
```
Called when the connection is opened. We store the original request, since it might be needed for the GraphQLInvocation.

Parameters:

session - WebSocketSession

request - HttpRequest

onMessage

@OnMessage
public org.reactivestreams.Publisher<GraphQLWsResponse> onMessage(java.lang.String message,
                                                                  io.micronaut.websocket.WebSocketSession session)

Called on every message received from the client.

Parameters:: message - Message received from a client; session - WebSocketSession
Returns:: Publisher

onClose

@OnClose
public org.reactivestreams.Publisher<GraphQLWsResponse> onClose(io.micronaut.websocket.WebSocketSession session,
                                                                io.micronaut.websocket.CloseReason closeReason)

Called when the websocket is closed.

Parameters:: session - WebSocketSession; closeReason - CloseReason
Returns:: Publisher

onError
```
@OnError
public org.reactivestreams.Publisher<GraphQLWsResponse> onError(io.micronaut.websocket.WebSocketSession session,
                                                                java.lang.Throwable t)
```
Called when there is an error with the websocket, this probably means the connection is lost, but hasn't been properly closed.

Parameters:

session - WebSocketSession

t - Throwable, the cause of the error

Returns:

Publisher

Class GraphQLWsController