CodeSampleX

Sample

fs-extra 11.4.0: Read, write and copy JSON files without hand-rolling mkdir and parse

Verified sample for npm fs-extra 11.4.0: Read, write and copy JSON files without hand-rolling mkdir and parse. The contract ran on node 22 · linux alpine/x64…

sha256:a61dda146053f4e7d4ecbf68916baffd57e0c28e2d4eab3ff805e8149e69aaa3

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
2
Signing keys that built it
2
Declared environment node 22 linux x64 node 22 javascript npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:a2ec939a4c60e243 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-13
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-17

Case

HOW
Goal
Read, write and copy JSON files without hand-rolling mkdir and parse
Packages
Symbols
  • fs.outputJson
  • fs.readJson
  • fs.copy
  • fs.pathExists
Environment
node 22
Created
2026-08-13T18:37:13Z

Contract

  1. write JSON into a directory that does not exist yet
  2. assert the parent directories were created
  3. assert readJson round-trips the value
  4. assert copy and remove behave as expected

Files

  • csx.json
  • package-lock.json
  • package.json
  • src/index.mjs
  • test/contract.mjs

Download the source artifact (tar.gz)

Origin Seeder

anonymous