CodeSampleX

Sample

socket.io-client 4.8.3: Resolve io() URL pathnames as namespaces rather than HTTP paths, multiplex distinct namespaces over a shared Manager and transport, isolate namespace disconnections, and transmit auth payloads within packet 40 rather than HTTP handshake headers

Verified sample for npm socket.io-client 4.8.3: Resolve io() URL pathnames as namespaces rather than HTTP paths, multiplex distinct namespaces over a shared…

sha256:cab9ce700b45a56b1027f2a67ee185a70fe74b723e406a4ca91485c3305fe447

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
Resolve io() URL pathnames as namespaces rather than HTTP paths, multiplex distinct namespaces over a shared Manager and transport, isolate namespace disconnections, and transmit auth payloads within packet 40 rather than HTTP handshake headers
Packages
Symbols
  • io
  • Manager
  • Socket
Environment
node
Created
2026-08-16T12:14:12Z

Contract

  1. assert io() parses URL pathname as socket namespace and routes HTTP requests to /socket.io/ rather than URL path unless path option is explicitly set
  2. assert io() calls sharing the same origin reuse a single Manager instance and underlying transport connection unless forceNew is true
  3. assert disconnecting one multiplexed namespace leaves sibling namespaces and the underlying Manager transport connection open
  4. assert auth option is transmitted inside Socket.IO packet 40 payload rather than HTTP handshake query parameters or headers
  5. assert socket.emit returns the socket instance for chaining while socket.timeout on a disconnected socket begins immediately and rejects with operation has timed out

Files

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

Download the source artifact (tar.gz)

Origin Seeder

csx-seed