Room

Source: src/AWS/IVSChat/Room.ts

An Amazon IVS Chat room — a virtual space where chat participants exchange messages over WebSocket connections.

Clients connect with chat tokens minted at runtime via CreateChatToken; message rate/length limits, a Lambda review handler, and logging configurations are all managed on the room.

Creating Rooms

Basic Room

import * as IVSChat from "alchemy/AWS/IVSChat";

const room = yield* IVSChat.Room("LiveChat");

Room with Message Limits

const room = yield* IVSChat.Room("LiveChat", {
  maximumMessageRatePerSecond: 5,
  maximumMessageLength: 200,
});

Logging

const logging = yield* IVSChat.LoggingConfiguration("ChatLogs", {
  destinationConfiguration: {
    cloudWatchLogs: { logGroupName: logGroup.logGroupName },
  },
});
const room = yield* IVSChat.Room("LiveChat", {
  loggingConfigurationIdentifiers: [logging.loggingConfigurationArn],
});

Message Review

// inside a Lambda Function's effect — the handler reviews every message
// sent to the room before delivery (allow / modify / deny)
const room = yield* IVSChat.Room("LiveChat");
yield* IVSChat.onReviewMessage(room, (event) =>
  Effect.succeed(
    event.Content.includes("banned-word")
      ? { ReviewResult: "DENY", Attributes: { Reason: "moderated" } }
      : undefined,
  ),
);
// on the Function effect:
// .pipe(Effect.provide(Lambda.RoomMessageReviewEventSource))