Exemplo

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

sha256:58c08df4e2e12d0989f56f61a509551f26f9a7c7fce4300a49d1d6aa357a209c

Caso

Objetivo

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

Pacotes

express 4.18.2

Ambiente

node

Criado

2026-08-17T06:38:17Z

O que costuma-se supor

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

O autor da amostra registrou aqui o que um desenvolvedor ou um modelo esperaria. O contrato abaixo é o que de fato rodou.

Contrato

• 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, [])

Arquivos

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

Baixar o artefato de código-fonte (tar.gz)

Seeder de origem

csx-seed

Recibos de verificação

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