Major upgrade of openim - group chat reading diffusion model release group management function upgrade

Introduction to new functions
（1） Group announcements show editor information and release time ;（2） Show how group members enter the Group （ Search into groups , QR code into group , Invite in ）;（3） Group add permission control , Group members are forbidden / Allow adding friends , prohibit / Allow to view group member information ;（4） When the personal nickname is modified , Update group nicknames in real time ;（5） Friend notes can be deleted , And multi terminal synchronization ;（6） Group chat supports read diffusion , characteristic ： New group members can see historical news ; Only one copy of the group chat message server is saved ;（7） The group leader administrator can recall the messages in the Group , No time limit ;

Technical friends should be familiar with read-write diffusion , Whether it's information flow 、 Forum 、 mail , Or private chat 、 Group chat 、 notice , Can use read-write diffusion . This article does not explain the technical details ,OpenIM The read diffusion based on push-pull combination mainly solves the redundant storage of messages in the group chat mode , Message real time , And the problem that new users cannot view new messages when entering the Group .

Group chat and reading spread
Specify the workgroup when creating , This group uses the read diffusion model , Each group has its own seq, Group members share this seq, It can greatly reduce the redundancy of group messages , And improve the real-time performance of messages . And pave the way for the next message on-demand loading mechanism . New users can view historical messages when joining the Group , It is very useful for office scenes .

Group announcement
Group announcements prompt at the top of the chat , And show the editor's information and release time .

Group approach
Check the way group members enter the Group , Enter the group through a certain channel ： Search into groups , QR code into group , Who invited to join the Group .

Group permission control
Group leader / Administrator set group member prohibition / Allow adding friends , prohibit / Allow to view group member information , Protect the privacy of group members

The group leader administrator withdraws the messages in the Group
Group leader 、 Administrator withdraws other member messages , No time limit

Andrews experience ：https://www.pgyer.com/OpenIM

Project results
From the server to the client SDK Open source instant messaging （IM） Overall solution , Can easily replace third parties IM The cloud service , And can be highly customized and redeveloped according to business needs , Create a chat 、 social contact 、 Office function app.OpenIM Continue to lead open source IM field , With the strong support of developers , at present github star Keep breaking through . More and more developers put OpenIM Applied in Social , Collaborative office .

github Address ：https://github.com/OpenIMSDK/Open-IM-Server

Developer center ：https://doc.rentsoft.cn/#/

Our team
OpenIM By IM Technical experts build open source instant messaging components , at present github The community is active ,star Nearly 10000 , It's way ahead of the League , developer 7000 people ,OpenM Strive for open source IM project No1, Create open source IM The first community . Support Android、iOS Native development , Support Flutter、uni-app Cross end development , Support for applets 、React All mainstream web Front end technology framework , PC Support Electron. It is mainly used in government affairs , social contact ,web3 scene , Everything is controllable , Give Way OpenIM Go deep into all industries .