minipass-fetch 4.0.1: Request

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify Request in pkg:npm/minipass-fetch@4.0.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/minipass-fetch@4.0.1
Demonstrate these symbols/APIs:
  - Request

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:6e76ca4f77b37bf866ac59ad340b15e7ee2c94b9b55798fc84e4e2b9dd0a87dd","contract":["new Request(input, init) normalizes URL strings and URL instances, uppercases standard HTTP methods, and applies default options (method 'GET', redirect 'follow', compress true, follow 20)","Request attaches normalized Headers and exposes body consumers (json(), text()) while clone() duplicates the Request so both original and cloned bodies can be consumed independently","new Request(existingRequest, init) inherits method, url, and redirect settings from the source Request while allowing headers and body overrides","new Request throws TypeError when a body is supplied with GET or HEAD"],"goal":"verify Request in pkg:npm/minipass-fetch@4.0.1","kind":"HOW","packages":["pkg:npm/minipass-fetch@4.0.1"],"schemaVersion":1,"symbols":["Request"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","runtime":"node","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/minipass-fetch@4.0.1"],"schemaVersion":1,"subject":"pkg:npm/minipass-fetch@4.0.1","symbols":["Request"],"verifierAdapter":"node-typescript@1"}

{
  "name": "minipass-fetch-request-sample",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "minipass-fetch-request-sample",
      "version": "1.0.0",
      "dependencies": {
        "minipass-fetch": "4.0.1"
      }
    },
    "node_modules/encoding": {
      "version": "0.1.13",
      "resolved": "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz",
      "integrity": "sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==",
      "license": "MIT",
      "optional": true,
      "dependencies": {
        "iconv-lite": "^0.6.2"
      }
    },
    "node_modules/iconv-lite": {
      "version": "0.6.3",
      "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz",
      "integrity": "sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==",
      "license": "MIT",
      "optional": true,
      "dependencies": {
        "safer-buffer": ">= 2.1.2 < 3.0.0"
      },
      "engines": {
        "node": ">=0.10.0"
      }
    },
    "node_modules/minipass": {
      "version": "7.1.3",
      "resolved": "https://registry.npmjs.org/minipass/-/minipass-7.1.3.tgz",
      "integrity": "sha512-tEBHqDnIoM/1rXME1zgka9g6Q2lcoCkxHLuc7ODJ5BxbP5d4c2Z5cGgtXAku59200Cx7diuHTOYfSBD8n6mm8A==",
      "license": "BlueOak-1.0.0",
      "engines": {
        "node": ">=16 || 14 >=14.17"
      }
    },
    "node_modules/minipass-fetch": {
      "version": "4.0.1",
      "resolved": "https://registry.npmjs.org/minipass-fetch/-/minipass-fetch-4.0.1.tgz",
      "integrity": "sha512-j7U11C5HXigVuutxebFadoYBbd7VSdZWggSe64NVdvWNBqGAiXPL2QVCehjmw7lY1oF9gOllYbORh+hiNgfPgQ==",
      "license": "MIT",
      "dependencies": {
        "minipass": "^7.0.3",
        "minipass-sized": "^1.0.3",
        "minizlib": "^3.0.1"
      },
      "engines": {
        "node": "^18.17.0 || >=20.5.0"
      },
      "optionalDependencies": {
        "encoding": "^0.1.13"
      }
    },
    "node_modules/minipass-sized": {
      "version": "1.0.3",
      "resolved": "https://registry.npmjs.org/minipass-sized/-/minipass-sized-1.0.3.tgz",
      "integrity": "sha512-MbkQQ2CTiBMlA2Dm/5cY+9SWFEN8pzzOXi6rlM5Xxq0Yqbda5ZQy9sU75a673FE9ZK0Zsbr6Y5iP6u9nktfg2g==",
      "license": "ISC",
      "dependencies": {
        "minipass": "^3.0.0"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/minipass-sized/node_modules/minipass": {
      "version": "3.3.6",
      "resolved": "https://registry.npmjs.org/minipass/-/minipass-3.3.6.tgz",
      "integrity": "sha512-DxiNidxSEK+tHG6zOIklvNOwm3hvCrbUrdtzY74U6HKTJxvIDfOUL5W5P2Ghd3DTkhhKPYGqeNUIh5qcM4YBfw==",
      "license": "ISC",
      "dependencies": {
        "yallist": "^4.0.0"
      },
      "engines": {
        "node": ">=8"
      }
    },
    "node_modules/minizlib": {
      "version": "3.1.0",
      "resolved": "https://registry.npmjs.org/minizlib/-/minizlib-3.1.0.tgz",
      "integrity": "sha512-KZxYo1BUkWD2TVFLr0MQoM8vUUigWD3LlD83a/75BqC+4qE0Hb1Vo5v1FgcfaNXvfXzr+5EhQ6ing/CaBijTlw==",
      "license": "MIT",
      "dependencies": {
        "minipass": "^7.1.2"
      },
      "engines": {
        "node": ">= 18"
      }
    },
    "node_modules/safer-buffer": {
      "version": "2.1.2",
      "resolved": "https://registry.npmjs.org/safer-buffer/-/safer-buffer-2.1.2.tgz",
      "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
      "license": "MIT",
      "optional": true
    },
    "node_modules/yallist": {
      "version": "4.0.0",
      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
      "license": "ISC"
    }
  }
}

{
  "name": "minipass-fetch-request-sample",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "scripts": {
    "test": "node test/contract.mjs"
  },
  "dependencies": {
    "minipass-fetch": "4.0.1"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify Request in pkg:npm/minipass-fetch@4.0.1",
  "kind": "HOW",
  "packages": [
    "pkg:npm/minipass-fetch@4.0.1"
  ],
  "symbols": [
    "Request"
  ]
}

import assert from 'node:assert/strict'
import fetch from 'minipass-fetch'

const { Request, Headers } = fetch

// 1. Default construction from URL string and URL object
const reqFromStr = new Request('http://example.com/resource')
assert.equal(reqFromStr.method, 'GET')
assert.equal(reqFromStr.url, 'http://example.com/resource')
assert.equal(reqFromStr.redirect, 'follow')
assert.equal(reqFromStr.compress, true)
assert.equal(reqFromStr.follow, 20)
assert.equal(reqFromStr.counter, 0)
assert.ok(reqFromStr.headers instanceof Headers)

const reqFromUrl = new Request(new URL('http://example.com/search?q=1'))
assert.equal(reqFromUrl.url, 'http://example.com/search?q=1')

// 2. Method normalization, headers, body consumption, and options
const reqPost = new Request('http://example.com/items', {
  method: 'post',
  headers: { 'Content-Type': 'application/json', 'X-Item': 'alpha' },
  body: JSON.stringify({ id: 10, active: true }),
  redirect: 'manual',
  follow: 5,
  compress: false,
})
assert.equal(reqPost.method, 'POST')
assert.equal(reqPost.headers.get('content-type'), 'application/json')
assert.equal(reqPost.headers.get('x-item'), 'alpha')
assert.equal(reqPost.redirect, 'manual')
assert.equal(reqPost.follow, 5)
assert.equal(reqPost.compress, false)

// 3. Cloning a Request before consuming its body allows independent consumption
const clonedPost = reqPost.clone()
assert.equal(clonedPost.method, 'POST')
assert.equal(clonedPost.url, 'http://example.com/items')
assert.equal(clonedPost.headers.get('x-item'), 'alpha')
assert.deepEqual(await reqPost.json(), { id: 10, active: true })
assert.equal(await clonedPost.text(), '{"id":10,"active":true}')

// 4. Constructing a Request from an existing Request with overrides
const baseReq = new Request('http://example.com/v1', {
  method: 'PUT',
  headers: { 'X-Base': 'yes', 'X-Override': 'old' },
  body: 'payload-v1',
  redirect: 'error',
})
const derivedReq = new Request(baseReq, {
  headers: { 'X-Override': 'new' },
  body: 'payload-v2',
})
assert.equal(derivedReq.method, 'PUT')
assert.equal(derivedReq.url, 'http://example.com/v1')
assert.equal(derivedReq.redirect, 'error')
assert.equal(derivedReq.headers.get('x-override'), 'new')
assert.equal(await derivedReq.text(), 'payload-v2')

// 5. Rejects GET/HEAD requests with a body
assert.throws(
  () => new Request('http://example.com/no-body', { method: 'GET', body: 'not-allowed' }),
  TypeError
)
assert.throws(
  () => new Request('http://example.com/no-body', { method: 'HEAD', body: 'not-allowed' }),
  TypeError
)