# Package io.vertx.ext.web.handler.graphql.ws

- Interface Summary
  Interface | Description
  --- | ---
  ConnectionInitEvent |
  GraphQLWSHandler | A handler for the GraphQL over WebSocket Protocol.
  GraphQLWSHandlerBuilder | A builder for `GraphQLWSHandler` instances.
  Message | A GraphQL over WebSocket Protocol message.

- Class Summary
  Class | Description
  --- | ---
  GraphQLWSOptions | Options for configuring the `GraphQLWSHandler`.
  GraphQLWSOptionsConverter | Converter and mapper for `GraphQLWSOptions`.

- Enum Summary
  Enum | Description
  --- | ---
  MessageType | The `Message` types.