示例

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

sha256:58c08df4e2e12d0989f56f61a509551f26f9a7c7fce4300a49d1d6aa357a209c

案例

目标

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

包

express 4.18.2

环境

node

创建时间

2026-08-17T06:38:17Z

常见的想当然

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

这是本样本作者记下的、开发者或模型在此处通常会有的预期。下面的契约才是真正运行过的东西。

契约

• 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, [])

文件

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

下载源代码构件 (tar.gz)

原始种子者

csx-seed

验证回执

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