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fix(voice): relax backend timeout and surface timeout errors

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Bumps the proxy timeout to 5 minutes (VOICE_TIMEOUT_MS) since local TTS can
synthesize long messages at roughly real-time, and returns a clear timed-out
message (504) instead of failing silently. The read-aloud button now shows
backend errors.
This commit is contained in:
newsbubbles
2026-06-09 12:13:06 +01:00
parent 711936d279
commit 32a6405537
3 changed files with 63 additions and 25 deletions
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17
server/voice-proxy.js
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@@ -33,7 +33,8 @@ function resolveConfig(req) {
const router = express.Router();
const VOICE_TIMEOUT_MS = Number(process.env.VOICE_TIMEOUT_MS || 60000);
// Generous by default — local TTS can synthesize long messages at ~real-time on CPU.
const VOICE_TIMEOUT_MS = Number(process.env.VOICE_TIMEOUT_MS || 300000);
async function fetchWithTimeout(url, options = {}) {
const controller = new AbortController();
const timer = setTimeout(() => controller.abort(), VOICE_TIMEOUT_MS);
@@ -44,6 +45,16 @@ async function fetchWithTimeout(url, options = {}) {
}
}
// Turn backend failures into a clear, actionable message for the client.
function backendError(res, e) {
if (e && e.name === 'AbortError') {
return res.status(504).json({
error: `Voice backend timed out after ${Math.round(VOICE_TIMEOUT_MS / 1000)}s. Check your sidecar or API.`,
});
}
return res.status(502).json({ error: `Voice backend unreachable: ${e.message}` });
}
let _upload = null;
async function getUpload() {
if (!_upload) {
@@ -89,7 +100,7 @@ router.post('/transcribe', async (req, res) => {
try { data = JSON.parse(text); } catch { data = { text }; }
res.json({ text: data.text ?? '' });
} catch (e) {
res.status(502).json({ error: `voice backend unreachable: ${e.message}` });
backendError(res, e);
}
});
});
@@ -119,7 +130,7 @@ router.post('/tts', async (req, res) => {
res.setHeader('Cache-Control', 'no-store');
res.send(Buffer.from(await r.arrayBuffer()));
} catch (e) {
res.status(502).json({ error: `voice backend unreachable: ${e.message}` });
backendError(res, e);
}
});