NexaSim V2 - Bot Chat Messenger

A fun and engaging messenger bot for SimSim talk and entertainment, built with Node.js.

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Table of Contents

• What is NexaSim V2?

• How It Works

• Database Setup

• Creating Commands

• Simple Command

• Admin Command

• Economy Command

• Screenshots

• Support

• Additional Information

• Copyright and License

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What is NexaSim V2?

NexaSim V2 is a messenger bot designed for fun and SimSim talk, allowing users to engage in entertaining conversations and perform various tasks like downloading videos, generating images, and interacting with AI. I created this bot to bring joy and utility to messenger group chats, making conversations more interactive and enjoyable for everyone.

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How It Works

NexaSim V2 is built using Node.js and integrates with the Facebook Messenger API. It listens for messages, processes commands, and responds accordingly. Here's a simple overview of how it works:

1. User sends a message with a command prefix (e.g., .help).

2. Bot processes the command by matching it with registered commands.

3. Bot executes the command logic (e.g., API calls, file downloads, or text responses).

4. Bot sends a response back to the user with the result.

Example: Basic Command Execution

// Example command: .hello

module.exports = {

name: "hello",

description: "Says hello to the user",

async  execute({ api, event }) {

api.sendMessage("Hello! How can I help you today?", event.threadID);

}

};

Database Setup

To set up the database for NexaSim V2, follow these steps:

1. Navigate to the includes/database/ directory in the repository.
2. Locate the file example.index.js and rename it to index.js.
3. Open index.js and find the MongoDB URI placeholder.
4. Replace the placeholder with your actual MongoDB URI (e.g., mongodb://your-username:your-password@your-host:27017/your-database).
5. Save the file.

Your bot will now connect to your MongoDB database for storing user data, economy balances, or other features requiring persistence.

Creating Commands

NexaSim V2 allows you to create various types of commands. Below are examples of a simple command, an admin command, and an economy command.

Simple Command

A basic command that anyone can use.

const  config  =  require('../../config/config.json');
module.exports = {

name: "uid",
version: "1.0.0",
author: "Hridoy",
description: "Shows the UID of the user, a mentioned user, or the replied-to user.",
adminOnly: false,
commandCategory: "utility",
guide: "Use {pn}uid to get your UID, {pn}uid @username to get a mentioned user's UID, or reply to a message with {pn}uid to get that user's UID.",
cooldowns: 5,
usePrefix: true,

async  execute({ api, event, args }) {
if (!event  ||  !event.threadID  ||  !event.messageID) {
console.error("Invalid event object in uid command");
return  api.sendMessage(`${config.bot.botName}: ❌ Invalid event data.`, event.threadID);
}

let  targetUid;
let  targetName  =  "User"; 
try {
if (event.type  ===  "message_reply"  &&  event.messageReply) {
targetUid  =  event.messageReply.senderID;
const  userInfo  =  await  new  Promise((resolve) => {
api.getUserInfo(targetUid, (err, info) =>  resolve(err  ? {} :  info));
});
targetName  =  userInfo[targetUid]?.name  ||  "Replied User";
}
else  if (event.mentions  &&  Object.keys(event.mentions).length  >  0) {
const  mentionedUsers  =  Object.keys(event.mentions);
if (mentionedUsers.length  >  1) {
return  api.sendMessage(`${config.bot.botName}: Please mention only one user.`, event.threadID, event.messageID);
}
targetUid  =  mentionedUsers[0];
targetName  =  event.mentions[targetUid] ||  "Mentioned User";
}
else {
targetUid  =  event.senderID;
const  userInfo  =  await  new  Promise((resolve) => {
api.getUserInfo(targetUid, (err, info) =>  resolve(err  ? {} :  info));
});
targetName  =  userInfo[targetUid]?.name  ||  "You";
}
await  api.sendMessage(
`${config.bot.botName}: ${targetName}'s UID: ${targetUid}`,
event.threadID,
event.messageID
);
} catch (error) {
console.error("❌ Error in uid command:", error);
await  api.sendMessage(

`${config.bot.botName}: ❌ Failed to retrieve UID.`,

event.threadID,

event.messageID

);
}
}
};

Admin Command

A command restricted to admins, useful for moderation.

const  config  =  require('../../config/config.json');
module.exports = {
name: "uid",
version: "1.0.0",
author: "Hridoy",
description: "Shows the UID of the user, a mentioned user, or the replied-to user.",
adminOnly: true,
commandCategory: "utility",
guide: "Use {pn}uid to get your UID, {pn}uid @username to get a mentioned user's UID, or reply to a message with {pn}uid to get that user's UID.",
cooldowns: 5,
usePrefix: true,

async  execute({ api, event, args }) {

....

Economy Command

A command for managing a virtual economy, like a balance system.

const  config  =  require('../../config/config.json');
const { connect } =  require('../../includes/database');
const  logger  =  require('../../includes/logger');
module.exports = {

name: "work",
version: "1.0.0",
author: "Hridoy",
description: "Earn a random amount of currency (15/20/25) once every 24 hours.",
adminOnly: false,
commandCategory: "economy",
guide: "Use {pn}work to earn currency once every 24 hours.",
cooldowns: 0,
usePrefix: true,

async  execute({ api, event, args }) {
if (!event  ||  !event.threadID  ||  !event.messageID) {
console.error("Invalid event object in work command");
return  api.sendMessage(`${config.bot.botName}: ❌ Invalid event data.`, event.threadID);
}
const  db  =  await  connect();
const  usersCollection  =  db.collection('users');

const  user  =  await  usersCollection.findOne({ userId: event.senderID });
if (!user) {
return  api.sendMessage(`${config.bot.botName}: ⚠️ User not found in database.`, event.threadID);
}
const  now  =  Date.now();
const  lastWork  =  user.lastWork  ||  0;
const  cooldown  =  24  *  60  *  60  *  1000;

if (now  -  lastWork  <  cooldown) {
const  timeLeft  =  Math.ceil((cooldown  - (now  -  lastWork)) / (60  *  60  *  1000));
return  api.sendMessage(`${config.bot.botName}: ⚠️ You can only work once every 24 hours. Try again in ${timeLeft} hours.`, event.threadID);

}
const  amounts  = [15, 20, 25];
const  earnedAmount  =  amounts[Math.floor(Math.random() *  amounts.length)];
const  newBalance  = (user.balance  ||  0) +  earnedAmount;
await  usersCollection.updateOne(
{ userId: event.senderID },
{ $set: { balance: newBalance, lastWork: now } }
);
logger.info(`User ${event.senderID} worked and earned ${earnedAmount}. New balance: ${newBalance}`);
api.sendMessage(`${config.bot.botName}: ✅ You worked and earned ${earnedAmount}! Your new balance is ${newBalance}.`, event.threadID);
}
};

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Screenshots

Here are some screenshots of NexaSim V2 in action:

Using the .help command to list available commands.

Chat with NexaSim .bot. Also you can play a game .hangman.

A advance example canvas and api command .gitcard command.

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Support

For support or to connect with the community, reach out via:

• Telegram: Join our Telegram

• Facebook: My facebook

• Instagram: My instagram

• GitHub: Visit the Repository

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Additional Information

• Codebase: Written in Node.js, leveraging the axios library for API requests and fs for file handling.

• Features: Includes video downloading (YouTube, Instagram, Facebook), AI interactions (GPT-4), image generation, and more.

• Performance: Optimized for low-latency responses, with a modular command structure for easy expansion.

• Dependencies: Requires Node.js v20 and dependencies listed in package.json.

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Copyright and License

© 2025 Hridoy (1dev-hridoy). All rights reserved.

This project is licensed under the MIT License - see the LICENSE file for details.

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