@databutton/liveblocks-client/lib/esm/client.js

**At [Liveblocks](https://liveblocks.io), we’re building tools to help companies create world-class collaborative products that attract, engage and retain users.** This repository is a set of open-source packages for building performant and reliable multi

import { createRoom } from "./room";
/**
 * Create a client that will be responsible to communicate with liveblocks servers.
 *
 * @example
 * const client = createClient({
 *   authEndpoint: "/api/auth"
 * });
 *
 * // It's also possible to use a function to call your authentication endpoint.
 * // Useful to add additional headers or use an API wrapper (like Firebase functions)
 * const client = createClient({
 *   authEndpoint: async (room) => {
 *     const response = await fetch("/api/auth", {
 *       method: "POST",
 *       headers: {
 *          Authentication: "token",
 *          "Content-Type": "application/json"
 *       },
 *       body: JSON.stringify({ room })
 *     });
 *
 *     return await response.json();
 *   }
 * });
 */
export function createClient(options) {
    const clientOptions = options;
    if (typeof clientOptions.throttle === "number") {
        if (clientOptions.throttle < 80 || clientOptions.throttle > 1000) {
            throw new Error("Liveblocks client throttle should be between 80 and 1000 ms");
        }
    }
    const rooms = new Map();
    function getRoom(roomId) {
        const internalRoom = rooms.get(roomId);
        return internalRoom ? internalRoom.room : null;
    }
    function enter(roomId, options = { WebSocketPolyfill: WebSocket }) {
        let internalRoom = rooms.get(roomId);
        if (internalRoom) {
            return internalRoom.room;
        }
        internalRoom = createRoom(roomId, Object.assign(Object.assign({}, clientOptions), options));
        rooms.set(roomId, internalRoom);
        internalRoom.connect();
        return internalRoom.room;
    }
    function leave(roomId) {
        let room = rooms.get(roomId);
        if (room) {
            room.disconnect();
            rooms.delete(roomId);
        }
    }
    if (typeof window !== "undefined") {
        // TODO: Expose a way to clear these
        window.addEventListener("online", () => {
            for (const [, room] of rooms) {
                room.onNavigatorOnline();
            }
        });
    }
    if (typeof document !== "undefined") {
        document.addEventListener("visibilitychange", () => {
            for (const [, room] of rooms) {
                room.onVisibilityChange(document.visibilityState);
            }
        });
    }
    return {
        getRoom,
        enter,
        leave,
    };
}