CodeSampleX

Sample

electron-publish 25.1.7: HttpPublisher

Verified sample for npm electron-publish 25.1.7: HttpPublisher. The contract ran on node 22 · linux debian/x64 · docker and passed.

sha256:e2e097d659d1bd6caf91d0472a7ac7a5bb86de88c1017895925ceb4b2e2bf304

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

Verification-run environments

Environment Contract Stages Run
node 22 · linux debian/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22@sha256:8a34c4ab3ea2…		 2026-09-02

Case

HOW
Goal
verify HttpPublisher in pkg:npm/electron-publish@25.1.7
Packages
Symbols
  • HttpPublisher
Environment
node 22.23.2
Created
2026-09-02T14:01:28Z

Contract

  1. HttpPublisher provides a base class constructor for HTTP-based artifact uploads requiring doUpload implementation
  2. HttpPublisher uploads in-memory buffer payloads with byte length calculation and target basename
  3. HttpPublisher resolves artifact file size from filesystem and uploads with custom safeArtifactName when enabled
  4. HttpPublisher falls back to file basename when safeArtifactName is disabled

Files

  • PROMPT.md
  • csx.json
  • index.js
  • package-lock.json
  • package.json
  • spec.json
  • test/contract.cjs

Download the source artifact (tar.gz)

Source

PROMPT.md
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 HttpPublisher in pkg:npm/electron-publish@25.1.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/electron-publish@25.1.7
Demonstrate these symbols/APIs:
  - HttpPublisher
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: cjs
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

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.
csx.json
{"case":{"caseId":"case:sha256:ba88516099e2f4cde94d794e45d497a5aa2b8a19d3dabde7665f5cdd86ea3861","constraints":{"executionContext":"node"},"contract":["HttpPublisher provides a base class constructor for HTTP-based artifact uploads requiring doUpload implementation","HttpPublisher uploads in-memory buffer payloads with byte length calculation and target basename","HttpPublisher resolves artifact file size from filesystem and uploads with custom safeArtifactName when enabled","HttpPublisher falls back to file basename when safeArtifactName is disabled"],"goal":"verify HttpPublisher in pkg:npm/electron-publish@25.1.7","kind":"HOW","packages":["pkg:npm/electron-publish@25.1.7"],"schemaVersion":1,"symbols":["HttpPublisher"]},"contractCommand":["node","test/contract.cjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"cjs","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/electron-publish@25.1.7"],"schemaVersion":1,"subject":"pkg:npm/electron-publish@25.1.7","symbols":["HttpPublisher"],"verifierAdapter":"node-typescript@1"}
index.js
'use strict';

const { HttpPublisher } = require('electron-publish');

/**
 * Custom HTTP publisher extending the base HttpPublisher.
 */
class CustomHttpPublisher extends HttpPublisher {
  constructor(context, useSafeArtifactName = false) {
    super(context, useSafeArtifactName);
    this.uploads = [];
  }

  get providerName() {
    return 'custom-http';
  }

  async doUpload(fileName, arch, dataLength, requestProcessor, file) {
    const uploadRecord = {
      fileName,
      arch,
      dataLength,
      file: file || null
    };
    this.uploads.push(uploadRecord);
    return uploadRecord;
  }

  toString() {
    return 'CustomHttpPublisher';
  }
}

module.exports = {
  HttpPublisher,
  CustomHttpPublisher
};
package-lock.json
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package.json
{
  "name": "sample-electron-publish-http-publisher",
  "version": "1.0.0",
  "private": true,
  "description": "verify HttpPublisher in pkg:npm/electron-publish@25.1.7",
  "main": "index.js",
  "scripts": {
    "test": "node test/contract.cjs"
  },
  "dependencies": {
    "electron-publish": "25.1.7"
  },
  "license": "MIT-0"
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify HttpPublisher in pkg:npm/electron-publish@25.1.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/electron-publish@25.1.7"
  ],
  "symbols": [
    "HttpPublisher"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "cjs",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
test/contract.cjs
'use strict';

const assert = require('assert');
const fs = require('fs');
const path = require('path');
const os = require('os');
const { HttpPublisher, CustomHttpPublisher } = require('../index.js');

async function run() {
  const tmpDir = fs.mkdtempSync(path.join(os.tmpdir(), 'electron-publish-contract-'));
  const testArtifact = path.join(tmpDir, 'release-app-x64.tar.gz');

  try {
    const dummyContent = 'electron publish http publisher artifact content';
    fs.writeFileSync(testArtifact, dummyContent, 'utf8');

    const fakeContext = {
      cancellationToken: {
        isCancelled: false,
        createPromise: () => new Promise(() => {})
      },
      progress: null
    };

    // 1. Verify HttpPublisher class constructor and custom extension
    assert.strictEqual(typeof HttpPublisher, 'function', 'HttpPublisher must be a class constructor');
    const publisher = new CustomHttpPublisher(fakeContext, false);
    assert.strictEqual(publisher.providerName, 'custom-http', 'providerName must return custom-http');
    assert.strictEqual(publisher.toString(), 'CustomHttpPublisher', 'toString must return CustomHttpPublisher');
    assert.strictEqual(publisher.useSafeArtifactName, false, 'useSafeArtifactName must default to false');

    // 2. Verify upload with in-memory buffer payload
    const bufferPayload = Buffer.from('in-memory-contract-data', 'utf8');
    await publisher.upload({
      file: '/virtual/path/dist-package.zip',
      fileContent: bufferPayload,
      arch: 1
    });

    assert.strictEqual(publisher.uploads.length, 1, 'CustomHttpPublisher must record buffer upload');
    assert.strictEqual(publisher.uploads[0].fileName, 'dist-package.zip', 'upload must use basename for virtual artifact file');
    assert.strictEqual(publisher.uploads[0].dataLength, bufferPayload.length, 'upload must provide exact buffer byte length');
    assert.strictEqual(publisher.uploads[0].arch, 1, 'upload must preserve target architecture');

    // 3. Verify upload with disk file and safeArtifactName enabled
    const safePublisher = new CustomHttpPublisher(fakeContext, true);
    assert.strictEqual(safePublisher.useSafeArtifactName, true, 'useSafeArtifactName must be set to true');
    const fileUploadResult = await safePublisher.upload({
      file: testArtifact,
      arch: 1,
      safeArtifactName: 'custom-safe-name.tar.gz'
    });

    assert.strictEqual(safePublisher.uploads.length, 1, 'safePublisher must record disk file upload');
    assert.strictEqual(safePublisher.uploads[0].fileName, 'custom-safe-name.tar.gz', 'upload must use safeArtifactName when enabled');
    assert.strictEqual(safePublisher.uploads[0].dataLength, Buffer.byteLength(dummyContent, 'utf8'), 'upload must resolve file size from disk');
    assert.strictEqual(safePublisher.uploads[0].file, testArtifact, 'upload must pass file path to doUpload');
    assert.strictEqual(fileUploadResult.fileName, 'custom-safe-name.tar.gz', 'upload must return doUpload result for disk files');

    // 4. Verify upload with disk file and safeArtifactName disabled fallback
    const defaultPublisher = new CustomHttpPublisher(fakeContext, false);
    const defaultUploadResult = await defaultPublisher.upload({
      file: testArtifact,
      arch: 0,
      safeArtifactName: 'ignored-safe-name.tar.gz'
    });

    assert.strictEqual(defaultPublisher.uploads.length, 1, 'defaultPublisher must record disk file upload');
    assert.strictEqual(defaultPublisher.uploads[0].fileName, 'release-app-x64.tar.gz', 'upload must fall back to file basename when useSafeArtifactName is false');
    assert.strictEqual(defaultPublisher.uploads[0].dataLength, Buffer.byteLength(dummyContent, 'utf8'), 'upload must resolve file size for fallback');
    assert.strictEqual(defaultUploadResult.fileName, 'release-app-x64.tar.gz', 'upload must return doUpload result for fallback');

    console.log('Contract tests passed successfully.');
    process.exit(0);
  } finally {
    try {
      if (fs.existsSync(tmpDir)) {
        fs.rmSync(tmpDir, { recursive: true, force: true });
      }
    } catch (e) {
      // Ignore cleanup error
    }
  }
}

run().catch((err) => {
  console.error('Contract test failed:', err);
  process.exit(1);
});

Origin Seeder

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