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dot-lookup: fix 'Failed to fetch' caused by SOS timeout exceeding nginx proxy limit

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Two WORKER_URL/entity-status calls both had 20s timeouts; worst case 40s total
response time exceeds nginx proxy_read_timeout, dropping the connection and
causing the browser to show 'Failed to fetch'. Also wraps fmcsaFetch calls
explicitly so FMCSA API failure still returns full local census data.

- AbortSignal.timeout(20000) -> 5000 on both SOS entity-status calls
- fmcsaFetch carrier + authority calls wrapped in individual try/catch

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
justin 2026-05-31 10:19:10 -05:00
parent 0b7a35a58e
commit e0be6468d4
1 changed files with 18 additions and 8 deletions
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26
api/src/routes/dot-lookup.ts
View file

@ -66,13 +66,23 @@ router.get("/api/v1/dot/lookup", async (req, res) => {
);
const census = local.rows[0] || null;
// 2. Live FMCSA API
const snapshot = await fmcsaFetch(rawDot);
const carrier = snapshot?.content?.carrier || null;
// 2. Live FMCSA API — wrapped so a timeout or outage still returns census data
let carrier: any = null;
try {
const snapshot = await fmcsaFetch(rawDot);
carrier = snapshot?.content?.carrier || null;
} catch {
// FMCSA live API unavailable — continue with local census data
}
// 3. Authority check
const authorityData = await fmcsaFetch(`${rawDot}/authority`);
const authorities = (authorityData?.content || []).map((a: any) => a.carrierAuthority);
// 3. Authority check — also non-fatal
let authorities: any[] = [];
try {
const authorityData = await fmcsaFetch(`${rawDot}/authority`);
authorities = (authorityData?.content || []).map((a: any) => a.carrierAuthority);
} catch {
// Authority lookup failed — skip, checks will use census data where possible
}
if (!census && !carrier) {
res.status(404).json({ error: `DOT# ${rawDot} not found.` });
@ -483,7 +493,7 @@ router.get("/api/v1/dot/lookup", async (req, res) => {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ entity_name: name, state_code: state }),
signal: AbortSignal.timeout(20000),
signal: AbortSignal.timeout(5000),
});
if (sosResp.ok) {
sosStatus = (await sosResp.json()) as { found?: boolean; status?: string; error?: string };
@ -688,7 +698,7 @@ router.post("/api/v1/dot/name-check", async (req, res) => {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({ entity_name: name, state_code: stateCode }),
signal: AbortSignal.timeout(20000),
signal: AbortSignal.timeout(5000),
}).then(r => r.json())
: Promise.resolve({ skipped: true }),