Beispiel

Express defaults the application `query parser` setting to `'extended'`, parsing bracketed query string keys into nested objects and arrays.

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Fall

Ziel

Express defaults the application `query parser` setting to `'extended'`, parsing bracketed query string keys into nested objects and arrays. HOW

Pakete

express 4.18.2

Umgebung

node

Erstellt

2026-08-17T06:38:17Z

Häufige Annahme

Leaving the query parser unconfigured in Express parses query string parameters into flat key-value pairs without constructing nested objects.

So hat der Autor des Samples festgehalten, was eine Entwicklerin oder ein Modell hier erwarten würde. Der Vertrag darunter ist das, was tatsächlich lief.

Contract

• When the `query parser` setting is left unset on an Express application, Express defaults `app.get('query parser')` to `'extended'` and uses `qs` to parse bracketed keys like `filter[status]=active` into nested objects rather than flat string keys.
• assert.strictEqual(app.get('query parser'), 'extended')
• assert.strictEqual(app.get('etag'), 'weak')
• assert.strictEqual(app.get('subdomain offset'), 2)
• assert.strictEqual(app.get('x-powered-by'), true)
• assert.strictEqual(app.get('trust proxy'), false)
• assert.deepStrictEqual(req.query, { filter: { status: 'active', limit: '10' }, tags: ['backend', 'express'] })
• assert(res.headers['etag'].startsWith('W/"'))
• assert.strictEqual(res.headers['x-powered-by'], 'Express')
• assert.deepStrictEqual(req.subdomains, ['v1', 'api'])
• assert.deepStrictEqual(req.ips, [])

Dateien

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

Quellartefakt herunterladen (tar.gz)

Ursprungs-Seeder

csx-seed

Verifizierungsbelege

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9