Files
support_backend/tests/integration/observability/request-metrics.test.ts
T
saqib mirandClaude Sonnet 5 acd3843aaf feat(014-full-observability): per-request access log + live request-duration metric
User Stories 1-2: every completed request (including 404s and early
replies from other hooks) now emits exactly one structured access-log
line, and every log line produced during that request's handling shares
its requestId/correlationId via a new AsyncLocalStorage-backed Pino mixin
— with zero changes to any existing log call site. The previously-dead
supporthub_http_request_duration_seconds histogram now actually receives
observations, so error rate and latency per route are computable from
/metrics alone.

Also bumps @opentelemetry/sdk-trace-base 1.x -> 2.x to align with the two
new tracing dependencies added in this same branch (exporter-trace-otlp-http,
resources) onto one consistent major version — npm had otherwise installed
two incompatible OTel core/resources majors side by side, which also
happened to resolve a moderate DoS advisory in @opentelemetry/core <2.8.0.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-08 11:12:14 +05:30

41 lines
1.5 KiB
TypeScript

import { describe, it, expect, beforeAll, afterAll } from 'vitest';
import { buildApp } from '@/app';
import { FastifyInstance } from 'fastify';
/** Covers specs/014-full-observability/quickstart.md Scenario 2 against a real running app. */
describe('Live request-health metrics (User Story 2)', () => {
let app: FastifyInstance;
beforeAll(async () => {
app = await buildApp();
});
afterAll(async () => {
await app.close();
});
it('records request-duration observations labeled by method/route/status for both success and failure', async () => {
const email = `metrics-test-${Date.now()}@supporthub.test`;
await app.inject({ method: 'POST', url: '/auth/login', payload: { email, password: 'wrong' } });
await app.inject({
method: 'POST',
url: '/auth/login',
payload: { email, password: 'wrong2' },
});
const metricsRes = await app.inject({ method: 'GET', url: '/metrics' });
expect(metricsRes.statusCode).toBe(200);
expect(metricsRes.body).toMatch(
/supporthub_http_request_duration_seconds_count\{method="POST",route="\/auth\/login",status_code="401"\}\s+\d+/,
);
// A second scrape's body reflects the first scrape's own request too — proves 2xx routes
// are observed just as 4xx ones are, not only error paths.
const secondScrape = await app.inject({ method: 'GET', url: '/metrics' });
expect(secondScrape.body).toMatch(
/supporthub_http_request_duration_seconds_count\{method="GET",route="\/metrics",status_code="200"\}\s+\d+/,
);
});
});