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app/api/record/start/route.ts

@@ -0,0 +1,70 @@
+import { EgressClient, EncodedFileOutput, S3Upload } from 'livekit-server-sdk';
+import { NextRequest, NextResponse } from 'next/server';
+
+export async function GET(req: NextRequest) {
+  try {
+    const roomName = req.nextUrl.searchParams.get('roomName');
+
+    /**
+     * CAUTION:
+     * for simplicity this implementation does not authenticate users and therefore allows anyone with knowledge of a roomName
+     * to start/stop recordings for that room.
+     * DO NOT USE THIS FOR PRODUCTION PURPOSES AS IS
+     */
+
+    if (roomName === null) {
+      return new NextResponse('Missing roomName parameter', { status: 403 });
+    }
+
+    const {
+      LIVEKIT_API_KEY,
+      LIVEKIT_API_SECRET,
+      LIVEKIT_URL,
+      S3_KEY_ID,
+      S3_KEY_SECRET,
+      S3_BUCKET,
+      S3_ENDPOINT,
+      S3_REGION,
+    } = process.env;
+
+    const hostURL = new URL(LIVEKIT_URL!);
+    hostURL.protocol = 'https:';
+
+    const egressClient = new EgressClient(hostURL.origin, LIVEKIT_API_KEY, LIVEKIT_API_SECRET);
+
+    const existingEgresses = await egressClient.listEgress({ roomName });
+    if (existingEgresses.length > 0 && existingEgresses.some((e) => e.status < 2)) {
+      return new NextResponse('Meeting is already being recorded', { status: 409 });
+    }
+
+    const fileOutput = new EncodedFileOutput({
+      filepath: `${new Date(Date.now()).toISOString()}-${roomName}.mp4`,
+      output: {
+        case: 's3',
+        value: new S3Upload({
+          endpoint: S3_ENDPOINT,
+          accessKey: S3_KEY_ID,
+          secret: S3_KEY_SECRET,
+          region: S3_REGION,
+          bucket: S3_BUCKET,
+        }),
+      },
+    });
+
+    await egressClient.startRoomCompositeEgress(
+      roomName,
+      {
+        file: fileOutput,
+      },
+      {
+        layout: 'speaker',
+      },
+    );
+
+    return new NextResponse(null, { status: 200 });
+  } catch (error) {
+    if (error instanceof Error) {
+      return new NextResponse(error.message, { status: 500 });
+    }
+  }
+}