CodeSampleX

Sample

dotenv 17.4.2: Existing process.env variables and earlier loaded config files take strict precedence unless override: true or DOTENV_CONFIG_OVERRIDE is explicitly enabled

Verified sample for npm dotenv 17.4.2: Existing process.env variables and earlier loaded config files take strict precedence unless override: true or…

sha256:cc2a38a595028c0eb69e9cc8c1b0ea4df797c07aa2d8bfd5af537ec850ba4895

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 linux x64 node node npm

Verification-run environments

Environment Contract Stages Run
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-16
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1
2026-08-18

Case

HOW
Goal
Existing process.env variables and earlier loaded config files take strict precedence unless override: true or DOTENV_CONFIG_OVERRIDE is explicitly enabled
Packages
Symbols
  • dotenv.config
  • dotenv/config
  • dotenv.populate
Environment
node
Created
2026-08-16T07:07:18Z

Contract

  1. preset process.env variables are preserved when dotenv.config() runs with default override: false
  2. dotenv.config() returns parsed dictionary from file while process.env retains preexisting value
  3. subsequent dotenv.config() calls silently ignore overlapping keys without override: true
  4. passing override: true overwrites preexisting process.env values with values from file
  5. preloading via dotenv/config respects DOTENV_CONFIG_OVERRIDE=true to overwrite shell environment

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed