socket.io/dist/broadcast-operator.d.ts

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