import com.hyphenate.chat.EMClient;

EMClient.getInstance().init(mContext, mEMOptions);
EMClient.getInstance().login(username, password, null);
EMMessage message = EMMessage.createTxtSendMessage(content, toChatUsername);
EMClient.getInstance().chatManager().sendMessage(message);
EMClient.getInstance().logout(true);

import 'package:im_flutter_sdk/im_flutter_sdk.dart';

await EMClient.getInstance.init(EMOptions(appKey: Appkey));
await EMClient.getInstance.login('username','password');
EMMessage msg = EMMessage.createTxtSendMessage(username: toUsername, content: 'hello Hyphenate');
await EMClient.getInstance.chatManager.sendMessage(msg);
await EMClient.getInstance.logout(true);

import websdk from 'easemob-websdk'

let connection = new websdk.connection({appKey: 'appkey'})
connection.open({user: 'username', pwd: 'password', appKey: 'appkey'});
let id = connection.getUniqueId();
let msg = new websdk.message('txt', id);
msg.set({ msg: 'message content', to: 'userId',)
connection.send(msg.body);
connection.close();

let websdk = require("./wxsdk")

let connection = new websdk.connection({appKey: 'appkey'})
connection.open({user: 'username', pwd: 'password', appKey: 'appkey'});
let id = connection.getUniqueId();
let msg = new websdk.message('txt', id);
msg.set({ msg: 'message content', to: 'userId',)
connection.send(msg.body);
connection.close();

#include "emclient.h"

easemob::EMChatConfigsPtr configPtr = easemob::EMChatConfigsPtr(new easemob::EMChatConfigs(".", ".","easemob-demo#chatdemoui"));
easemob::EMClient* chatClient = easemob::EMClient::create(configPtr);
easemob::EMErrorPtr result = chatClient->login("username", "pwd");
easemob::EMTextMessageBodyPtr body =  easemob::EMTextMessageBodyPtr( new easemob::EMTextMessageBody("TEXT"));
easemob::EMMessagePtr msg = easemob::EMMessage::createSendMessage("username", "to", body);
chatClient->getChatManager().sendMessage(msg);
chatClient->logout();