# a2888409/face2face

基于netty的异步非阻塞实时聊天(IM)服务器。

Repository: https://github.com/a2888409/face2face
Canonical: https://ross.abutalabs.com/products/face2face
Language: Java
License Family: other
Topics: netty, nio
Last push: 2019-04-10T08:20:49+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:39:23.370411+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 3874, "days_push": 2702, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1537, forks 669 (observed 2026-08-28T04:05:00.084067+00:00)

## What it is
face2face is an asynchronous, non-blocking real-time instant messaging (IM) server built on Netty and Java NIO. It splits the system into three horizontally scalable services—auth (login/authentication), gate (client gateway), and logic (business logic)—communicating via protobuf-defined protocols with Redis for state.

## Use cases
- build a real-time chat server in Java
- learn how to architect an IM system with Netty
- implement a gateway-based microservice chat backend
- run load tests against a high-concurrency messaging server
- study horizontal scaling of chat services with message queues
- add custom protocols to a Netty-based messaging pipeline

## When to choose
- you want a lightweight, self-hosted IM backend in Java with Netty
- you need a reference architecture for splitting auth, gateway, and logic services
- you want to learn NIO-based, non-blocking server design with protobuf protocols

## When to avoid
- you need a production-ready chat platform with no license and limited maintenance
- you want turnkey features like group chat, offline messages, or reconnection out of the box
- you prefer a managed or batteries-included IM solution rather than a learning-oriented codebase

## Facets
- artifact type: application
- maturity: maintenance
- function: websocket, http-server, message-queue, auth, middleware, networking, concurrency
- domain: backend, microservices, developer-tools
- platform: jvm, windows, self-hosted
- tags: im-server, netty, nio, chat-server, microservices, protobuf, redis, gateway, load-testing, horizontal-scaling, messaging, real-time, linux, macos

## Member repositories
- a2888409/face2face (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:00.084067+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 2026-08-30T04:31:00.123463+00:00, confidence not recorded.
  - readme: https://github.com/a2888409/face2face (fetched 2026-08-28T04:05:00.084067+00:00, sha e1ca2d6d5717)
- Data as of 2026-08-30T08:39:29.467469+00:00.