284 lines
10 KiB
TypeScript
284 lines
10 KiB
TypeScript
import type { BroadcastFlags, Room, SocketId } from "socket.io-adapter";
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import { Handshake } from "./socket";
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import type { Adapter } from "socket.io-adapter";
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import type { EventParams, EventNames, EventsMap, TypedEventBroadcaster, DecorateAcknowledgements, DecorateAcknowledgementsWithTimeoutAndMultipleResponses, AllButLast, Last, SecondArg } from "./typed-events";
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export declare class BroadcastOperator<EmitEvents extends EventsMap, SocketData> implements TypedEventBroadcaster<EmitEvents> {
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private readonly adapter;
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private readonly rooms;
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private readonly exceptRooms;
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private readonly flags;
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constructor(adapter: Adapter, rooms?: Set<Room>, exceptRooms?: Set<Room>, flags?: BroadcastFlags & {
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expectSingleResponse?: boolean;
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});
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/**
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* Targets a room when emitting.
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*
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* @example
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* // the “foo” event will be broadcast to all connected clients in the “room-101” room
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* io.to("room-101").emit("foo", "bar");
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*
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* // with an array of rooms (a client will be notified at most once)
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* io.to(["room-101", "room-102"]).emit("foo", "bar");
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*
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* // with multiple chained calls
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* io.to("room-101").to("room-102").emit("foo", "bar");
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*
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* @param room - a room, or an array of rooms
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* @return a new {@link BroadcastOperator} instance for chaining
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*/
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to(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
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/**
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* Targets a room when emitting. Similar to `to()`, but might feel clearer in some cases:
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*
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* @example
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* // disconnect all clients in the "room-101" room
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* io.in("room-101").disconnectSockets();
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*
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* @param room - a room, or an array of rooms
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* @return a new {@link BroadcastOperator} instance for chaining
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*/
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in(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
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/**
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* Excludes a room when emitting.
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*
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* @example
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* // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
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* io.except("room-101").emit("foo", "bar");
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*
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* // with an array of rooms
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* io.except(["room-101", "room-102"]).emit("foo", "bar");
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*
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* // with multiple chained calls
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* io.except("room-101").except("room-102").emit("foo", "bar");
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*
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* @param room - a room, or an array of rooms
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* @return a new {@link BroadcastOperator} instance for chaining
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*/
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except(room: Room | Room[]): BroadcastOperator<EmitEvents, SocketData>;
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/**
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* Sets the compress flag.
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*
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* @example
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* io.compress(false).emit("hello");
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*
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* @param compress - if `true`, compresses the sending data
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* @return a new BroadcastOperator instance
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*/
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compress(compress: boolean): BroadcastOperator<EmitEvents, SocketData>;
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/**
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* Sets a modifier for a subsequent event emission that the event data may be lost if the client is not ready to
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* receive messages (because of network slowness or other issues, or because they’re connected through long polling
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* and is in the middle of a request-response cycle).
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*
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* @example
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* io.volatile.emit("hello"); // the clients may or may not receive it
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*
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* @return a new BroadcastOperator instance
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*/
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get volatile(): BroadcastOperator<EmitEvents, SocketData>;
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/**
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* Sets a modifier for a subsequent event emission that the event data will only be broadcast to the current node.
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*
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* @example
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* // the “foo” event will be broadcast to all connected clients on this node
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* io.local.emit("foo", "bar");
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*
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* @return a new {@link BroadcastOperator} instance for chaining
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*/
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get local(): BroadcastOperator<EmitEvents, SocketData>;
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/**
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* Adds a timeout in milliseconds for the next operation
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*
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* @example
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* io.timeout(1000).emit("some-event", (err, responses) => {
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* if (err) {
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* // some clients did not acknowledge the event in the given delay
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* } else {
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* console.log(responses); // one response per client
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* }
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* });
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*
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* @param timeout
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*/
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timeout(timeout: number): BroadcastOperator<DecorateAcknowledgementsWithTimeoutAndMultipleResponses<EmitEvents>, SocketData>;
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/**
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* Emits to all clients.
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*
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* @example
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* // the “foo” event will be broadcast to all connected clients
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* io.emit("foo", "bar");
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*
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* // the “foo” event will be broadcast to all connected clients in the “room-101” room
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* io.to("room-101").emit("foo", "bar");
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*
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* // with an acknowledgement expected from all connected clients
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* io.timeout(1000).emit("some-event", (err, responses) => {
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* if (err) {
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* // some clients did not acknowledge the event in the given delay
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* } else {
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* console.log(responses); // one response per client
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* }
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* });
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*
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* @return Always true
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*/
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emit<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: EventParams<EmitEvents, Ev>): boolean;
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/**
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* Emits an event and waits for an acknowledgement from all clients.
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*
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* @example
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* try {
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* const responses = await io.timeout(1000).emitWithAck("some-event");
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* console.log(responses); // one response per client
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* } catch (e) {
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* // some clients did not acknowledge the event in the given delay
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* }
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*
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* @return a Promise that will be fulfilled when all clients have acknowledged the event
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*/
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emitWithAck<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: AllButLast<EventParams<EmitEvents, Ev>>): Promise<SecondArg<Last<EventParams<EmitEvents, Ev>>>>;
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/**
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* Gets a list of clients.
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*
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* @deprecated this method will be removed in the next major release, please use {@link Server#serverSideEmit} or
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* {@link fetchSockets} instead.
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*/
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allSockets(): Promise<Set<SocketId>>;
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/**
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* Returns the matching socket instances. This method works across a cluster of several Socket.IO servers.
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*
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* Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
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*
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* @example
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* // return all Socket instances
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* const sockets = await io.fetchSockets();
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*
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* // return all Socket instances in the "room1" room
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* const sockets = await io.in("room1").fetchSockets();
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*
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* for (const socket of sockets) {
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* console.log(socket.id);
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* console.log(socket.handshake);
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* console.log(socket.rooms);
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* console.log(socket.data);
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*
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* socket.emit("hello");
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* socket.join("room1");
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* socket.leave("room2");
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* socket.disconnect();
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* }
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*/
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fetchSockets(): Promise<RemoteSocket<EmitEvents, SocketData>[]>;
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/**
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* Makes the matching socket instances join the specified rooms.
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*
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* Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
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*
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* @example
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*
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* // make all socket instances join the "room1" room
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* io.socketsJoin("room1");
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*
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* // make all socket instances in the "room1" room join the "room2" and "room3" rooms
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* io.in("room1").socketsJoin(["room2", "room3"]);
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*
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* @param room - a room, or an array of rooms
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*/
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socketsJoin(room: Room | Room[]): void;
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/**
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* Makes the matching socket instances leave the specified rooms.
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*
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* Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
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*
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* @example
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* // make all socket instances leave the "room1" room
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* io.socketsLeave("room1");
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*
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* // make all socket instances in the "room1" room leave the "room2" and "room3" rooms
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* io.in("room1").socketsLeave(["room2", "room3"]);
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*
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* @param room - a room, or an array of rooms
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*/
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socketsLeave(room: Room | Room[]): void;
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/**
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* Makes the matching socket instances disconnect.
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*
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* Note: this method also works within a cluster of multiple Socket.IO servers, with a compatible {@link Adapter}.
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*
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* @example
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* // make all socket instances disconnect (the connections might be kept alive for other namespaces)
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* io.disconnectSockets();
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*
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* // make all socket instances in the "room1" room disconnect and close the underlying connections
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* io.in("room1").disconnectSockets(true);
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*
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* @param close - whether to close the underlying connection
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*/
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disconnectSockets(close?: boolean): void;
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}
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/**
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* Format of the data when the Socket instance exists on another Socket.IO server
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*/
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interface SocketDetails<SocketData> {
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id: SocketId;
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handshake: Handshake;
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rooms: Room[];
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data: SocketData;
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}
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/**
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* Expose of subset of the attributes and methods of the Socket class
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*/
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export declare class RemoteSocket<EmitEvents extends EventsMap, SocketData> implements TypedEventBroadcaster<EmitEvents> {
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readonly id: SocketId;
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readonly handshake: Handshake;
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readonly rooms: Set<Room>;
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readonly data: SocketData;
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private readonly operator;
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constructor(adapter: Adapter, details: SocketDetails<SocketData>);
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/**
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* Adds a timeout in milliseconds for the next operation.
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*
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* @example
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* const sockets = await io.fetchSockets();
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*
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* for (const socket of sockets) {
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* if (someCondition) {
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* socket.timeout(1000).emit("some-event", (err) => {
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* if (err) {
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* // the client did not acknowledge the event in the given delay
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* }
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* });
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* }
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* }
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*
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* // note: if possible, using a room instead of looping over all sockets is preferable
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* io.timeout(1000).to(someConditionRoom).emit("some-event", (err, responses) => {
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* // ...
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* });
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*
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* @param timeout
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*/
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timeout(timeout: number): BroadcastOperator<DecorateAcknowledgements<EmitEvents>, SocketData>;
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emit<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: EventParams<EmitEvents, Ev>): boolean;
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/**
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* Joins a room.
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*
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* @param {String|Array} room - room or array of rooms
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*/
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join(room: Room | Room[]): void;
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/**
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* Leaves a room.
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*
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* @param {String} room
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*/
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leave(room: Room): void;
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/**
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* Disconnects this client.
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*
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* @param {Boolean} close - if `true`, closes the underlying connection
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* @return {Socket} self
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*/
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disconnect(close?: boolean): this;
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}
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export {};
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