LiMaoIM: A Go repository from BootsShu

LiMaoIM (Everything so easy)

This project is a simple and easy to use, powerful performance, simple design concept instant messaging service, fully custom protocol chat (Chat) system

中文文档

QQ group: 496193831
Website: http://www.limao.io
Source: https://github.com/lim-team/LiMaoIM
Protocol: LiMaoIM Protocol
Issues: https://github.com/lim-team/LiMaoIM/issues
Docs: http://www.limao.io/docs

Feature

Go language development, high performance and easy maintenance have both
The bottom layer is 100% open source
Binary protocol (supports customization), the packet size is extremely small, the minimum heartbeat packet is only 1 byte, the power consumption is small, the flow is small, and the transmission speed is fast
The message channel and message content are fully encrypted to prevent man-in-the-middle attacks and modify of message content.
Simple and easy to use, strong performance, MAC notebook stand-alone test more than 6w/sec message throughput, in order to achieve this performance and easy to use, completely independent message storage, no need to rely on third-party components, a single command can start the service
The tcp + ack mechanism is used to ensure that the message is stable and reliable without loss
Strong scalability Adopting the channel design concept, currently supports group channels, point-to-point channels, and you can customize channels according to your own business in the future. It can realize functions such as robot channels, customer service channels, etc
Multi-terminal synchronization, real-time synchronization of web, pc, app messages
TCP and Websocket are supported indiscriminately
Ten thousand people support
The message partition is permanently stored, and the message will not be lost when the device is uninstalled
Support offline pull in read mode

Quick start

Run the server (Note: Because it rewrites the Go network library, this library is temporarily not supported by Windows. Windows recommends using Docker to run.)

$ go run cmd/app/main.go -e mode=test

After the server is running, visit http://127.0.0.1:1516/api to view the api document

Client SDK

Android SDK: Android SDK (built-in simple demo)

iOS SDK: Open source from Star to 500 (please help us some Star, thanks 😄)

JS SDK: Star to 1000 open source (please help us some Star, thanks 😄)

note： Please check document for the use of SDK

Quick play

Log in to test1, test2 and test2 to send a message "hello" to test1

// Log in to test1
$ go run cmd/play/main.go -user=test1

// Log in to test2
$ go run cmd/play/main.go -user=test2

test2 sends the message hello to test1

$ >send hello to test1

Performance Testing

One-click pressure test

./bench.sh

My test results are as follows:

Achieve a throughput of 63420 messages per second, which is close to the pressure test data of redis!

goos: darwin
goarch: amd64
cpu: Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz

SEND: 2021/06/29 15:05:49 duration: 10.605478656s - 12.096mb/s - 63420.051ops/s - 15.768us/op