CodeSampleX

Sample

Handle request-response event acknowledgements via callbacks and emitWithAck, intercept incoming and outgoing events with onAny and onAnyOutgoing, and discard unsent events using volatile emit

sha256:094aa3ff46c77195e3261b3a7cbcce557af72e9f6032a688e8fcddae7ca9fa64

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 alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…
2026-08-23

Case

HOW
Goal
Handle request-response event acknowledgements via callbacks and emitWithAck, intercept incoming and outgoing events with onAny and onAnyOutgoing, and discard unsent events using volatile emit
Packages
Symbols
  • Socket.emitWithAck
  • Socket.onAny
  • Socket.onAnyOutgoing
  • Socket.volatile
Environment
node 22.23.2
Created
2026-08-23T16:09:48Z

Contract

  1. assert volatile emit while disconnected discards event immediately without queuing in sendBuffer whereas regular emit is queued
  2. assert onAnyOutgoing and prependAnyOutgoing intercept outgoing event names and payloads when draining buffered events and on live emits
  3. assert prependAny and onAny execute before specific event handlers in deterministic order upon receiving incoming events
  4. assert emitWithAck resolves Promise with server acknowledgement payload and rejects with operation has timed out when timeout occurs
  5. assert callback-based emit with timeout receives Error with operation has timed out and undefined result when unacknowledged

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous