46 lines
1.6 KiB
TypeScript
46 lines
1.6 KiB
TypeScript
import { type NextRequest, NextResponse } from 'next/server';
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import { RunpodError } from '../../../../lib/runpod/client';
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import { rpTranscribe } from '../../../../lib/runpod/endpoints';
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export const runtime = 'nodejs';
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export const maxDuration = 60; // cold-start STT worker can take a while
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/**
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* Speech-to-text proxy for voice annotations. Accepts base64 WAV (16 kHz mono
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* PCM16, produced in-browser by lib/audioCapture) and returns the transcript.
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* Calls the RunPod voice-to-text endpoint (RUNPOD_STT_URL) — the key stays
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* server-side. See docs/AI-SETUP.md.
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*/
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const MAX_BASE64 = 8_000_000; // ~6 MB decoded WAV — stays under serverless body limits
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export async function POST(req: NextRequest) {
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let body: { audio?: unknown; language?: unknown };
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try {
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body = await req.json();
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} catch {
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return NextResponse.json({ error: 'Invalid JSON body.' }, { status: 400 });
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}
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const audio = typeof body.audio === 'string' ? body.audio : '';
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const language = typeof body.language === 'string' ? body.language : undefined;
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if (!audio) return NextResponse.json({ error: 'Missing audio.' }, { status: 400 });
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if (audio.length > MAX_BASE64) {
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return NextResponse.json({ error: 'Audio too long — keep it under ~30s.' }, { status: 413 });
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}
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try {
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const { transcript, segments } = await rpTranscribe(audio, { language, punctuation: true });
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return NextResponse.json({ transcript, segments });
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} catch (e) {
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const msg =
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e instanceof RunpodError
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? e.message
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: e instanceof Error
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? e.message
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: 'Transcription failed.';
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return NextResponse.json({ error: msg }, { status: 502 });
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}
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}
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