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<p align="center">
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<a href="https://www.openim.online">
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<img src="./assets/logo-gif/openim-logo.gif" width="60%" height="30%"/>
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</a>
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</p>
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<h3 align="center" style="border-bottom: none">
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⭐️ Open source Instant Messaging Server ⭐️ <br>
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<h3>
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<p align=center>
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<a href="https://goreportcard.com/report/github.com/OpenIMSDK/Open-IM-Server"><img src="https://goreportcard.com/badge/github.com/OpenIMSDK/Open-IM-Server" alt="A+"></a>
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<a href="https://github.com/OpenIMSDK/Open-IM-Server/issues?q=is%3Aissue+is%3Aopen+sort%3Aupdated-desc+label%3A%22good+first+issue%22"><img src="https://img.shields.io/github/issues/OpenIMSDK/Open-IM-Server/good%20first%20issue?logo=%22github%22" alt="good first"></a>
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<a href="https://github.com/OpenIMSDK/Open-IM-Server"><img src="https://img.shields.io/github/stars/OpenIMSDK/Open-IM-Server.svg?style=flat&logo=github&colorB=deeppink&label=stars"></a>
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<a href="https://join.slack.com/t/openimsdk/shared_invite/zt-1tmoj26uf-_FDy3dowVHBiGvLk9e5Xkg"><img src="https://img.shields.io/badge/Slack-300%2B-blueviolet?logo=slack&logoColor=white"></a>
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<a href="https://github.com/OpenIMSDK/Open-IM-Server/blob/main/LICENSE"><img src="https://img.shields.io/badge/license-Apache--2.0-green"></a>
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<a href="https://golang.org/"><img src="https://img.shields.io/badge/Language-Go-blue.svg"></a>
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</p>
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</p>
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<p align="center">
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<a href="./README.md"><b> English </b></a> •
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<a href="./README-zh_CN.md"><b> 中文 </b></a>
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</p>
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</p>
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## What is Open-IM-Server
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Open-IM-Server is an instant messaging server developed using pure Golang, adopting JSON over WebSocket as the communication protocol. In Open-IM-Server, everything is a message, so you can easily extend custom messages without modifying the server code. With a microservice architecture, Open-IM-Server can be deployed using clusters. By deploying Open-IM-Server on a server, developers can quickly integrate instant messaging and real-time networking features into their applications, ensuring the security and privacy of business data.
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Open-IM-Server is not a standalone product and does not include account registration and login services. For your convenience, we have open-sourced the [chat repository](https://github.com/OpenIMSDK/chat) which includes login and registration functionality. By deploying the chat business server alongside Open-IM-Server, a chat product can be set up.
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## Features
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- Open source
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- Easy to integrate
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- Excellent scalability
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- High performance
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- Lightweight
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- Supports multiple protocols
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## Community
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- Visit the official website: [OpenIM Developer Documentation](https://www.openim.online/)
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## Quick Start
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### Deploying with docker-compose
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1. Clone the project
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```bash
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# choose what you need
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BRANCH=release-v3.0
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git clone -b $BRANCH https://github.com/OpenIMSDK/Open-IM-Server openim && export openim=$(pwd)/openim && cd $openim && make build
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```
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2. Modify .env
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```bash
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USER=root #no need to modify
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PASSWORD=openIM123 #A combination of 8 or more numbers and letters, this password applies to redis, mysql, mongo, as well as accessSecret in config/config.yaml
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ENDPOINT=http://127.0.0.1:10005 #minio's external service IP and port, or use the domain name storage.xx.xx, the app must be able to access this IP and port or domain,
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API_URL=http://127.0.0.1:10002/object/ #the app must be able to access this IP and port or domain,
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DATA_DIR=./ #designate large disk directory
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```
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3. Deploy and start
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> **Note**
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> This command can only be executed once. It will modify the component passwords in docker-compose based on the PASSWORD variable in .env, and modify the component passwords in config/config.yaml. If the password in .env changes, you need to first execute docker-compose down; rm components -rf and then execute this command.
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```
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make install
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```
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4. Check the service
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```bash
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make check
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```
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### Compile from source
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Ur need `Go 1.18` or higher version, and `make`.
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```bash
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# choose what you need
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BRANCH=release-v3.0
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git clone -b $BRANCH https://github.com/OpenIMSDK/Open-IM-Server openim && export openim=$(pwd)/openim && cd $openim && make build
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```
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Read about the [OpenIM Version Policy](https://github.com/OpenIMSDK/Open-IM-Server/blob/main/docs/conversions/version.md)
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`make help` to help you see the instructions supported by OpenIM.
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All services have been successfully built as shown in the figure
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### Component Configuration Instructions
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The config/config.yaml file has detailed configuration instructions for the storage components.
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- Zookeeper
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- Used for RPC service discovery and registration, cluster support.
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```
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zookeeper:
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schema: openim #Not recommended to modify
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address: [ 127.0.0.1:2181 ] #address
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username: #username
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password: #password
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```
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- MySQL
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- Used for storing users, relationships, and groups, supports master-slave database.
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```
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mysql:
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address: [ 127.0.0.1:13306 ] #address
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username: root #username
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password: openIM123 #password
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database: openIM_v2 #Not recommended to modify
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maxOpenConn: 1000 #maximum connection
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maxIdleConn: 100 #maximum idle connection
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maxLifeTime: 60 #maximum time a connection can be reused (seconds)
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logLevel: 4 #log level 1=slient 2=error 3=warn 4=info
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slowThreshold: 500 #slow statement threshold (milliseconds)
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```
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- Mongo
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- Used for storing offline messages, supports mongo sharded clusters.
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```
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mongo:
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uri: #Use this value directly if not empty
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address: [ 127.0.0.1:37017 ] #address
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database: openIM #default mongo db
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username: root #username
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password: openIM123 #password
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maxPoolSize: 100 #maximum connections
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```
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- Redis
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- Used for storing message sequence numbers, latest messages, user tokens, and mysql cache, supports cluster deployment.
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```
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redis:
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address: [ 127.0.0.1:16379 ] #address
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username: #username
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password: openIM123 #password
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```
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- Kafka
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- Used for message queues, for message decoupling, supports cluster deployment.
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```
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kafka:
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username: #username
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password: #password
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addr: [ 127.0.0.1:9092 ] #address
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latestMsgToRedis:
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topic: "latestMsgToRedis"
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offlineMsgToMongo:
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topic: "offlineMsgToMongoMysql"
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msgToPush:
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topic: "msqToPush"
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msgToModify:
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topic: "msgToModify"
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consumerGroupID:
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msgToRedis: redis
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msgToMongo: mongo
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msgToMySql: mysql
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msgToPush: push
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msgToModify: modify
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```
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### Start and Stop Services
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Start services
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```
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./start_all.sh;
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```
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Check services
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```
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./check_all.sh
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```
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Stop services
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```
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./stop_all.sh
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```
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### Open IM Ports
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| TCP Port | Description | Operation |
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| --------- | ------------------------------------------------------------ | ----------------------------------------------------- |
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| TCP:10001 | ws protocol, message port such as message sending, pushing etc, used for client SDK | Port release or nginx reverse proxy, and firewall off |
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| TCP:10002 | api port, such as user, friend, group, message interfaces. | Port release or nginx reverse proxy, and firewall off |
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| TCP:10005 | Required when choosing minio storage (openIM uses minio storage by default) | Port release or nginx reverse proxy, and firewall off |
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### Open Chat Ports
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| TCP Port | Description | Operation |
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| --------- | --------------------------------------------------- | ----------------------------------------------------- |
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| TCP:10008 | Business system, such as registration, login etc | Port release or nginx reverse proxy, and firewall off |
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| TCP:10009 | Management backend, such as statistics, banning etc | Port release or nginx reverse proxy, and firewall off |
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## Relationship Between APP and OpenIM
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OpenIM is an open source instant messaging component, it is not an independent product. This image shows the relationship between AppServer, AppClient, Open-IM-Server and Open-IM-SDK.
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## Overall Architecture
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## To start developing OpenIM
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The [community repository](https://github.com/OpenIMSDK/community) hosts all information about building Kubernetes from source, how to contribute code and documentation, who to contact about what, etc.
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## Contributing
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Contributions to this project are welcome! Please see [CONTRIBUTING.md](./CONTRIBUTING.md) for details.
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## Community Meetings
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We want anyone to get involved in our community, we offer gifts and rewards, and we welcome you to join us every Thursday night.
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We take notes of each [biweekly meeting](https://github.com/OpenIMSDK/Open-IM-Server/issues/381) in [GitHub discussions](https://github.com/OpenIMSDK/Open-IM-Server/discussions/categories/meeting), and our minutes are written in [Google Docs](https://docs.google.com/document/d/1nx8MDpuG74NASx081JcCpxPgDITNTpIIos0DS6Vr9GU/edit?usp=sharing).
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## Who are using Open-IM-Server
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The [user case studies](https://github.com/OpenIMSDK/community/blob/main/ADOPTERS.md) page includes the user list of the project. You can leave a [📝comment](https://github.com/OpenIMSDK/Open-IM-Server/issues/379) to let us know your use case.
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## License
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Open-IM-Server is under the Apache 2.0 license. See the [LICENSE](./LICENSE) file for details
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