{"adoption": {"forks": 188, "observed_at": "2026-08-28T04:05:22.426960+00:00", "stars": 1689}, "canonical_url": "https://ross.abutalabs.com/products/em-websocket", "card": {"archived": false, "artifact_type": "library", "description": "EventMachine based WebSocket server", "domain": ["web-development", "backend", "apis"], "enriched": true, "function": ["websocket", "http-server", "networking"], "health_score": 20, "homepage": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/", "language": "Ruby", "license": "MIT", "license_family": "permissive", "maturity": "maintenance", "member_repos": ["igrigorik/em-websocket"], "name": "igrigorik/em-websocket", "platform": ["ruby", "cross-platform"], "pushed_at": "2021-11-11T05:02:55+00:00", "repo": "igrigorik/em-websocket", "stars": 1689, "tags": ["eventmachine", "async", "websocket-server", "real-time-messaging", "real-time"], "topics": [], "urls": [], "use_cases": ["build a websocket server in ruby", "push real-time messages to browsers", "handle bidirectional client-server communication over websockets", "add live updates to a ruby app", "implement a chat or notification server", "run websockets inside an eventmachine reactor"], "what_it_is": "em-websocket is an async WebSocket server library for Ruby built on EventMachine. It supports all WebSocket protocol drafts in use (75, 76, 1-17, RFC 6455) with ping/pong, close codes, and healthcheck endpoints.", "when_to_avoid": ["you use modern async Ruby (Async gem) or non-EventMachine stacks", "you need a full-featured framework with channels/pubsub built in", "the project appears to be in maintenance with the last release in 2021"], "when_to_choose": ["you are already using EventMachine in a Ruby app", "you need broad legacy WebSocket draft compatibility", "you want a lightweight, minimal Ruby WebSocket server"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/em-websocket", "repo": "igrigorik/em-websocket", "role": "main", "score": 32}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:22.426960+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:38:40.892196+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "20df4a659dcdd38c19465429c6af3570525e1303d29e9abb0ec898db6a343eac", "fetched_at": "2026-08-28T04:05:22.426960+00:00", "kind": "readme", "missing": false, "url": "https://github.com/igrigorik/em-websocket"}, {"content_hash": "559b57f3ff5d15c474979bc3de626007c5c884beb631b81185aca2dc8e477cfa", "fetched_at": "2026-08-29T11:13:31.308232+00:00", "kind": "homepage", "missing": false, "url": "http://www.igvita.com/2009/12/22/ruby-websockets-tcp-for-the-browser/"}, {"content_hash": "461eab8cd7b095f6dae9a6bf310dd7a626de0d979d0e811577844769dd02844c", "fetched_at": "2026-08-29T11:13:31.317933+00:00", "kind": "site_page", "missing": false, "url": "https://www.igvita.com/"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 0, "longevity": 100, "rhythm": 35}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_releases"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 6100, "days_push": 1756, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 32, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}