Yahya Alhinai
92 lines
2.5 KiB
TypeScript
92 lines
2.5 KiB
TypeScript
import { NextResponse } from 'next/server';
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import { AccessToken, type AccessTokenOptions, type VideoGrant } from 'livekit-server-sdk';
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import { RoomConfiguration } from '@livekit/protocol';
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type ConnectionDetails = {
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serverUrl: string;
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roomName: string;
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participantName: string;
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participantToken: string;
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};
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// NOTE: you are expected to define the following environment variables in `.env.local`:
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const API_KEY = process.env.LIVEKIT_API_KEY;
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const API_SECRET = process.env.LIVEKIT_API_SECRET;
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const LIVEKIT_URL = process.env.LIVEKIT_URL;
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// don't cache the results
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export const revalidate = 0;
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export async function POST(req: Request) {
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try {
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if (LIVEKIT_URL === undefined) {
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throw new Error('LIVEKIT_URL is not defined');
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}
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if (API_KEY === undefined) {
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throw new Error('LIVEKIT_API_KEY is not defined');
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}
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if (API_SECRET === undefined) {
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throw new Error('LIVEKIT_API_SECRET is not defined');
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}
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// Parse agent configuration from request body
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const body = await req.json();
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const agentName: string = body?.room_config?.agents?.[0]?.agent_name;
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// Generate participant token
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const participantName = 'user';
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const participantIdentity = `voice_assistant_user_${Math.floor(Math.random() * 10_000)}`;
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const roomName = `voice_assistant_room_${Math.floor(Math.random() * 10_000)}`;
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const participantToken = await createParticipantToken(
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{ identity: participantIdentity, name: participantName },
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roomName,
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agentName
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);
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// Return connection details
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const data: ConnectionDetails = {
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serverUrl: LIVEKIT_URL,
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roomName,
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participantToken: participantToken,
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participantName,
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};
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const headers = new Headers({
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'Cache-Control': 'no-store',
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});
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return NextResponse.json(data, { headers });
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} catch (error) {
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if (error instanceof Error) {
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console.error(error);
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return new NextResponse(error.message, { status: 500 });
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}
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}
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}
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function createParticipantToken(
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userInfo: AccessTokenOptions,
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roomName: string,
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agentName?: string
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): Promise<string> {
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const at = new AccessToken(API_KEY, API_SECRET, {
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...userInfo,
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ttl: '15m',
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});
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const grant: VideoGrant = {
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room: roomName,
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roomJoin: true,
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canPublish: true,
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canPublishData: true,
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canSubscribe: true,
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};
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at.addGrant(grant);
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if (agentName) {
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at.roomConfig = new RoomConfiguration({
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agents: [{ agentName }],
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});
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}
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return at.toJwt();
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}
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