engine.io-client 6.0.3
Client for the realtime Engine
engine.io-client@6.0.3 was published on 2021-11-14. Its manifest declares 9 runtime dependencies and 0 peer requirements. Type declarations are bundled according to the package metadata. No Node.js engine requirement is declared in this manifest.
All engine.io-client versions · Permanent reference to 6.0.3 · Latest release
Package specifications
| Version | 6.0.3 |
|---|---|
| License declaration | MIT |
| Published | 2021-11-14T07:16:58.275Z |
| Node.js requirement | Not declared |
| Type declarations | Bundled declarations |
| Runtime dependency count | 9 |
| Peer requirement count | 0 |
| Optional dependency count | 0 |
| Minified size | Measurement not available yet |
| Minified + gzip | Measurement not available yet |
| Unpacked distribution size | 566.37 KiB |
| Published file count | 93 |
| Package type | Not declared |
| ES module entry | ./build/esm/index.js |
| Default entry | ./build/cjs/index.js |
| Side effects declaration | Not declared |
| Direct advisories | 0 |
| Resolved graph dependencies | 10 |
| Repository stars | 63225 |
| Repository forks | 10218 |
Install engine.io-client 6.0.3
npm install engine.io-client@6.0.3 pnpm add engine.io-client@6.0.3 yarn add engine.io-client@6.0.3
Runtime dependencies
- ws ~8.2.3
- debug ~4.3.1
- yeast 0.1.2
- parseqs 0.0.6
- has-cors 1.1.0
- parseuri 0.0.6
- engine.io-parser ~5.0.0
- xmlhttprequest-ssl ~2.0.0
- @socket.io/component-emitter ~3.0.0
Peer requirements
- None declared
Optional dependencies
- None declared
Resolved dependency graph
This deps.dev graph describes a generic 64-bit Linux environment, not your application lockfile.
- @socket.io/component-emitter@3.0.0 — direct
- debug@4.3.7 — direct
- engine.io-parser@5.0.7 — direct
- has-cors@1.1.0 — direct
- ms@2.1.3 — indirect
- parseqs@0.0.6 — direct
- parseuri@0.0.6 — direct
- ws@8.2.3 — direct
- xmlhttprequest-ssl@2.0.0 — direct
- yeast@0.1.2 — direct
How to interpret the specifications
Bundlephobia measurements use its standard package build and may exclude peer dependencies. Unpacked npm distribution size includes shipped files and is a different measurement. Module declarations do not prove tree-shaking or runtime compatibility.
Advisories apply to this package version directly; transitive dependencies need separate inspection. Repository signals describe the whole repository and are current observations, including on historical-version pages.
OpenSSF repository checks
Provider assessment: 2026-08-24T00:00:00Z. These are repository checks, not a jsL maintenance score.
| Code-Review | 1/10 — Found 3/30 approved changesets -- score normalized to 1 |
|---|---|
| Maintained | 10/10 — 30 commit(s) and 20 issue activity found in the last 90 days -- score normalized to 10 |
| Security-Policy | 10/10 — security policy file detected |
| Dangerous-Workflow | 10/10 — no dangerous workflow patterns detected |
| CII-Best-Practices | 0/10 — no effort to earn an OpenSSF best practices badge detected |
| Token-Permissions | 9/10 — detected GitHub workflow tokens with excessive permissions |
| Binary-Artifacts | 9/10 — binaries present in source code |
| License | 10/10 — license file detected |
| Fuzzing | 0/10 — project is not fuzzed |
| SAST | 0/10 — SAST tool is not run on all commits -- score normalized to 0 |
| Packaging | 10/10 — packaging workflow detected |
| Pinned-Dependencies | 2/10 — dependency not pinned by hash detected -- score normalized to 2 |
Evidence and freshness
- https://registry.npmjs.org/engine.io-client/6.0.3 — retrieved 2026-10-29T11:26:43.193Z
- https://api.deps.dev/v3/projects/github.com%2Fsocketio%2Fsocket.io — retrieved 2026-10-29T11:15:29.827Z
- https://api.deps.dev/v3/systems/npm/packages/engine.io-client/versions/6.0.3:dependencies — retrieved 2026-10-29T11:26:43.751Z
- https://api.deps.dev/v3/systems/npm/packages/engine.io-client/versions/6.0.3 — retrieved 2026-10-29T11:26:43.734Z