Sample
express 4.19.1: Prove that Express 4 removes `app.configure`, so env-specific bootstrap code must be written without it.
Verified sample for npm express 4.19.1: Prove that Express 4 removes `app.configure`, so env-specific bootstrap code must be written without it. The contract…
sha256:e06c29db577a1fb2a48a4f5b01d70afb5a30f0d28ae56acf19a8476a2dd871bd
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 |
2026-08-17 |
| 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
- Prove that Express 4 removes `app.configure`, so env-specific bootstrap code must be written without it.
- Packages
- Symbols
-
- application.configure
- Environment
- node
- Created
- 2026-08-17T03:16:33Z
Contract
- In Express 4.19.1, `app.configure` is undefined and calling `app.configure(...)` throws `TypeError`, showing the v3-style helper no longer exists.
- `express()` still returns a usable app object with `app.listen` present.
Files
- NOTES.md
- csx.json
- package-lock.json
- package.json
- test/contract.mjs