Use this SDK to add instant messaging capabilities to your application. By connecting to a self-hosted OpenIM server, you can quickly integrate instant messaging capabilities into your app with just a few lines of code.

open-im-sdk is a pure javascript library. It doesn't store any information inside browser, instead it connects to oimws the proxy layer. This proxy layer is OpenIM SDK Core's websocket proxy(listening on port 10003 by deafult). open-im-sdk and open-im-sdk-wasm's interfaces are completely the same. Without modifying any code, your website can run in mini-app.

Visit https://docs.openim.io/ for detailed documentation and guides.

For the SDK reference, see https://docs.openim.io/sdks/quickstart/browser.

npm install open-im-sdk --save

The following examples demonstrate how to use the SDK. TypeScript is used, providing complete type hints.

import { OpenIMSDK } from 'open-im-sdk';

const OpenIM = new OpenIMSDK();

Note: You need to deploy OpenIM Server first, the default port of OpenIM Server is 10001, 10002, 10003.

import { CbEvents } from 'open-im-sdk';
import type { WsResponse } from 'open-im-sdk';

OpenIM.on(CbEvents.OnConnecting, handleConnecting);
OpenIM.on(CbEvents.OnConnectFailed, handleConnectFailed);
OpenIM.on(CbEvents.OnConnectSuccess, handleConnectSuccess);

OpenIM.login({
  userID: 'IM user ID',
  token: 'IM user token',
  platformID: 5,
  wsAddr: 'ws://your-server-ip:10003',
  apiAddr: 'http://your-server-ip:10002',
});

function handleConnecting() {
  // Connecting...
}

function handleConnectFailed({ errCode, errMsg }: WsResponse) {
  // Connection failed ❌
  console.log(errCode, errMsg);
}

function handleConnectSuccess() {
  // Connection successful ✅
}

To log into the IM server, you need to create an account and obtain a user ID and token. Refer to the access token documentation for details.

OpenIM makes it easy to send and receive messages. By default, there is no restriction on having a friend relationship to send messages (although you can configure other policies on the server). If you know the user ID of the recipient, you can conveniently send a message to them.

import { CbEvents } from 'open-im-sdk';
import type { WsResponse, MessageItem } from 'open-im-sdk';

// Listenfor new messages 📩
OpenIM.on(CbEvents.OnRecvNewMessages, handleNewMessages);

const message = (await OpenIM.createTextMessage('hello openim')).data;

OpenIM.sendMessage({
  recvID: 'recipient user ID',
  groupID: '',
  message,
})
  .then(() => {
    // Message sent successfully ✉️
  })
  .catch(err => {
    // Failed to send message ❌
    console.log(err);
  });

function handleNewMessages({ data }: WsResponse<MessageItem[]>) {
  // New message list 📨
  console.log(data);
}

You can find a demo web app that uses the SDK in the openim-pc-web-demo repository.

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OpenIM is licensed under the Apache 2.0 license. See LICENSE for the full license text.