# ChicagoBoss/ChicagoBoss

Erlang web MVC, now featuring Comet

Repository: https://github.com/ChicagoBoss/ChicagoBoss
Canonical: https://ross.abutalabs.com/products/chicagoboss
Homepage: http://www.chicagoboss.org/
Language: Erlang
License: MIT
License Family: permissive
Topics: framework, web-framework, erlang
Last push: 2022-01-10T14:03:59+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 6178, "days_push": 1696, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1849, forks 283 (observed 2026-08-28T04:05:44.108200+00:00)

## What it is
Chicago Boss is a Rails-inspired MVC web framework written in Erlang, featuring Django-style templates, an ORM, sessions, routing, email, JSON generation, and Comet/WebSocket support. It leverages Erlang's asynchronous I/O to handle high traffic with low RAM and CPU usage.

## Use cases
- build a high-traffic website in Erlang
- rails-like mvc framework for erlang
- server-side templating with django-style templates
- real-time comet long-poll endpoints
- web app with orm and sessions in erlang
- low-memory web server for many concurrent users

## When to choose
- you want a batteries-included MVC framework on the Erlang platform
- you need asynchronous I/O with Comet, WebSocket, or long-poll support
- you want low RAM/CPU footprint and hot code upgrades

## When to avoid
- you need a framework with a large active community and modern ecosystem
- your team is not comfortable with Erlang/Elixir functional programming
- you require recent framework features or frequent updates

## Facets
- artifact type: framework
- maturity: maintenance
- function: web-framework, orm, templating, routing, websocket, middleware, email, internationalization
- domain: web-development, backend, apis
- platform: windows, cross-platform
- tags: erlang, mvc, comet, long-polling, django-style-templates, rails-inspired, linux, macos, web-server

## Member repositories
- ChicagoBoss/ChicagoBoss (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:44.108200+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:17:15.719906+00:00, confidence not recorded.
  - readme: https://github.com/ChicagoBoss/ChicagoBoss (fetched 2026-08-28T04:05:44.108200+00:00, sha 8cbbd09ec16a)
  - homepage: http://www.chicagoboss.org/ (fetched 2026-08-29T10:56:20.386836+00:00, sha a23d2da3864d)
  - site_page: http://chicagoboss.org/documentation.htm (fetched 2026-08-29T10:56:20.395767+00:00, sha be496a1ee5a3)
  - site_page: http://chicagoboss.org/about.htm (fetched 2026-08-29T10:56:20.397634+00:00, sha 0bb134fb179e)
- Data as of 2026-08-30T08:39:29.467469+00:00.