Elvis Miranda

Elvis Miranda


How to Build Your First Telegram Chatbot with node js

So, this morning you woke up with the idea to develop a way to store and label interesting articles you’ve read. After playing with the idea, you figure a Telegram chatbot is the most convenient solution for this problem.

In this guide, we’ll walk you through everything you need to know to build your first Telegram Chatbot with node js

To get started, we have to register our new bot with the so-called Botfather to receive our API access token.

Bot Registration with @BotFather

The first step towards our very own Telegram bot is registering the bot with the BotFather. The BotFather is a bot itself that makes your life much easier. It helps you with registering bots, changing the bot description, adding commands, and providing you with the API token for your bot.

The API token is the most important step, as this allows you to run the code that can perform tasks for the bot.

1. Finding the BotFather

The BotFather can be found on Telegram by searching for ‘BotFather’. Click on the official BotFather, indicated with the white checkmark icon in the blue circle.

2. Registering a New Bot

Now we’ve found BotFather, let’s talk to him! You can start the conversation by typing /newbot. BotFather will ask you to choose a name for your both. This name can be anything and doesn’t have to be unique. To keep things simple, I named my bot ArticleBot.

Next, you will be prompted to input a username for the bot. The username must be unique and end in bot. Therefore, I chose michiel_article_bot, as that username was not yet taken. This will also be the username you use for looking up the bot in Telegram’s search field.

FatherBot will return a success message with your token to access the Telegram HTTP API. Make sure to store this token safely, and certainly don’t share it with anyone else.

3. Modifying the Bot

We can further modify the bot by adding a description or setting the commands we wish the bot to know. You can message the bot with the text /setcommands. It will show you how to input the commands with the format command1 - Description.

For my bot, I set the command bookmark - save interesting article URL.

If you look up your bot now, you will see a command icon in the chatbox that shows you the available commands. You can create many more commands that do work and not list them via BotFather. However, from a UX viewpoint, I recommend registering all available commands with BotFather.

We can set the privacy of the bot with /setprivacy. You can either enable or disable it. By default, the privacy value is set to enabled, which means your bot will only receive messages that start with the / symbol or by mentioning the bot’s username.

This setting can be disabled which means that your bot can receive all messages that are sent to a group. You will have to add a bot to your group for it to receive all these messages.

A list of all available commands can be found here:

Finally, we are all set to get started coding. Make sure you have the API access token ready.

Coding Your First Telegram Chatbot Command

First of all, during this tutorial, we will be using the following code I’ve prepared.

It’s a simple Node.js project that has only two dependencies: [dotenv](https://www.npmjs.com/package/dotenv "dotenv") and [node-telegram-bot-api](https://github.com/yagop/node-telegram-bot-api/blob/master/doc/usage.md "node-telegram-bot-api"). The first package is used for creating a .env config file that will hold our API access token. The second package acts as a Node.js wrapper for the Telegram Bots API, which we will be using for this tutorial.

1. Setting Up the Project

To get started, clone the GitHub repository and open the project in your favorite editor. Next, create a .env file in the root of your project and add a single line — TOKEN=yourtoken. Replace yourtoken with the token you have received from BotFather.

To make sure the connection works, navigate to the root of the project in your terminal and run npm start. The npm start command will run your app.js file and should connect to your bot. If you don’t see any errors, we are good to go!

**2. **Create the your first telegram chatbot Command

First of all, we have to create the bot by passing it our API access token and setting the polling option to true. This means the bot will check for incoming messages at regular intervals.

const TelegramBot = require('node-telegram-bot-api');

const token = process.env.TOKEN;

// Created instance of TelegramBot
const bot = new TelegramBot(token, {
   polling: true

Now the bot has been created, let’s take a look at the following snippet of code that represents our /bookmark command. We set a listener for incoming text messages, onText, and specify to look for a message that starts with /bookmark, as we specify this in the regex string.

When a message starts with /bookmark, our code will execute. First of all, we store the chat ID, as we want to be able to send a message back to this user’s chat.

Next, we check if the user has used the command correctly. We expect a URL to be passed with the command like this: /bookmark www.google.com.

If there is no URL specified, we send a message back to the stored chatID telling the user to provide us with a URL. If they do send a URL, we store the URL and send them a success message.

// Listener (handler) for telegram's /bookmark event
bot.onText(/\/bookmark/, (msg, match) => {
   const chatId = msg.chat.id;
   const url = match.input.split(' ')[1];
   // 'msg' is the received Message from Telegram
   // 'match' is the result of executing the regexp above on the text content
   // of the message

   if (url === undefined) {
           'Please provide URL of article!',

       'URL has been successfully saved!',

You might have noticed we are using two parameters for the callback function msg and match. The msg property represents the full message you receive whereas match represents the result from the regular expression we have defined. The image below shows you the full msg, and after ---- it shows you the match.

When we try out our command in the chat with the bot, we receive the following result:

If you see the same result, congratulations! You have just created your first bot command. Let’s take a look at more advanced options like sending keyboards with predefined options.

3. Keyboard Options

Now we know how to create a custom command, let’s take a deeper look at the keyboard options. It is possible to send a predefined keyboard with your command to limit the options of the user. It can be as simple as restricting the user to answer with Yes or No.

3.1 Normal Keyboard

Let’s take a look at the following snippet of code. We have added a third parameter to our bot.sendMessage function. This object defines the options for our keyboard. If you take a closer look at reply_markup.keyboard, you find an array that contains more arrays. Every array here represents a row with options. This helps you with formatting options that are more important or have longer button text.

// Listener (handler) for showcasing different keyboard layout
bot.onText(/\/keyboard/, (msg) => {
   bot.sendMessage(msg.chat.id, 'Alternative keybaord layout', {
       'reply_markup': {
           'keyboard': [['Sample text', 'Second sample'], ['Keyboard'], ['I\'m robot']],
           resize_keyboard: true,
           one_time_keyboard: true,
           force_reply: true,

This piece of code gives the following result when sending a message /keyboard to our bot.

Further, we can also define inline keyboards with extra data per option.

3.1 Inline Keyboard

An inline keyboard will be shown in the chat, and not under your message input box. As we want to label the URLs we submit, we can do this by showing the user the available categories. This is how our keyboard looks now:

Let’s take a look at the code underneath. The reply_markup now defines the property inline_keyboard. The rest of the markup remains the same. Every array represents a row. However, instead of just passing text, we can also pass an object with text and callback_data to know what option you have selected.

// Listener (handler) for telegram's /label event
bot.onText(/\/label/, (msg, match) => {
   const chatId = msg.chat.id;
   const url = match.input.split(' ')[1];

   if (url === undefined) {
           'Please provide URL of article!',

   tempSiteURL = url;
       'URL has been successfully saved!',
           reply_markup: {
               inline_keyboard: [[
                       text: 'Development',
                       callback_data: 'development'
                   }, {
                       text: 'Lifestyle',
                       callback_data: 'lifestyle'
                   }, {
                       text: 'Other',
                       callback_data: 'other'

The next section explains how to use the handler for receiving callback data.

3.2 Callback From Keyboard

In case we want to receive callback data, we have to listen to this type of event.

// Listener (handler) for callback data from /label command
bot.on('callback_query', (callbackQuery) => {
   const message = callbackQuery.message;
   const category = callbackQuery.data;

       url: tempSiteURL,
       label: category,

   tempSiteURL = '';

   bot.sendMessage(message.chat.id, `URL has been labeled with category "${category}"`);

The message property on callbackQuery contains the whole message from the user. The data property contains our category callback data.

You might have spotted a design error by now. What if we have two commands that send back callback data? You might get some very weird behavior or replies.

Therefore, it is recommended to send back a stringified JSON object that also holds a label to identify which command the callback data belongs to. Take a look at the following best practice:

// Inline keyboard options
const inlineKeyboard = {
   reply_markup: {
       inline_keyboard: [
                   text: 'YES',
                   callback_data: JSON.stringify({
                       'command': 'mycommand1',
                       'answer': 'YES'
                   text: 'NO',
                   callback_data: JSON.stringify({
                       'command': 'mycommand1',
                       'answer': 'NO'

You can use the data from the command option to switch to this command’s specific business logic.

We are well on our way to becoming Telegram Bot jedis. To become a fully-learned master, let’s explore data requests.

3.3 Data Requests – Phone Number

It is possible to request data, such as a person’s phone number or geolocation. For this tutorial, we showcase how to request a phone number with an alternative keyboard.

// Keyboard layout for requesting phone number access
const requestPhoneKeyboard = {
   "reply_markup": {
       "one_time_keyboard": true,
       "keyboard": [[{
           text: "My phone number",
           request_contact: true,
           one_time_keyboard: true
       }], ["Cancel"]]

// Listener (handler) for retrieving phone number
bot.onText(/\/phone/, (msg) => {
   bot.sendMessage(msg.chat.id, 'Can we get access to your phone number?', requestPhoneKeyboard);

The user will receive the following request in his chat:

When you click the button My phone number, you get the following phone number request:

This is how it looks after we give access:

Finally! You are a fully-learned Telegram Bot jedi .chatbot with node js. For now, more information and resources can be found here:

The difference between private and public messages

Different types of events

Tutorials by Hosein2398 on GitHub

Building a Facebook chatbots with Python

How to build your first chatbot with Dialogflow and React Native?

#node-js #javascript

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How to Build Your First Telegram Chatbot with node js

Hire Dedicated Node.js Developers - Hire Node.js Developers

If you look at the backend technology used by today’s most popular apps there is one thing you would find common among them and that is the use of NodeJS Framework. Yes, the NodeJS framework is that effective and successful.

If you wish to have a strong backend for efficient app performance then have NodeJS at the backend.

WebClues Infotech offers different levels of experienced and expert professionals for your app development needs. So hire a dedicated NodeJS developer from WebClues Infotech with your experience requirement and expertise.

So what are you waiting for? Get your app developed with strong performance parameters from WebClues Infotech

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Aria Barnes

Aria Barnes


Why use Node.js for Web Development? Benefits and Examples of Apps

Front-end web development has been overwhelmed by JavaScript highlights for quite a long time. Google, Facebook, Wikipedia, and most of all online pages use JS for customer side activities. As of late, it additionally made a shift to cross-platform mobile development as a main technology in React Native, Nativescript, Apache Cordova, and other crossover devices. 

Throughout the most recent couple of years, Node.js moved to backend development as well. Designers need to utilize a similar tech stack for the whole web project without learning another language for server-side development. Node.js is a device that adjusts JS usefulness and syntax to the backend. 

What is Node.js? 

Node.js isn’t a language, or library, or system. It’s a runtime situation: commonly JavaScript needs a program to work, however Node.js makes appropriate settings for JS to run outside of the program. It’s based on a JavaScript V8 motor that can run in Chrome, different programs, or independently. 

The extent of V8 is to change JS program situated code into machine code — so JS turns into a broadly useful language and can be perceived by servers. This is one of the advantages of utilizing Node.js in web application development: it expands the usefulness of JavaScript, permitting designers to coordinate the language with APIs, different languages, and outside libraries.

What Are the Advantages of Node.js Web Application Development? 

Of late, organizations have been effectively changing from their backend tech stacks to Node.js. LinkedIn picked Node.js over Ruby on Rails since it took care of expanding responsibility better and decreased the quantity of servers by multiple times. PayPal and Netflix did something comparative, just they had a goal to change their design to microservices. We should investigate the motivations to pick Node.JS for web application development and when we are planning to hire node js developers. 

Amazing Tech Stack for Web Development 

The principal thing that makes Node.js a go-to environment for web development is its JavaScript legacy. It’s the most well known language right now with a great many free devices and a functioning local area. Node.js, because of its association with JS, immediately rose in ubiquity — presently it has in excess of 368 million downloads and a great many free tools in the bundle module. 

Alongside prevalence, Node.js additionally acquired the fundamental JS benefits: 

  • quick execution and information preparing; 
  • exceptionally reusable code; 
  • the code is not difficult to learn, compose, read, and keep up; 
  • tremendous asset library, a huge number of free aides, and a functioning local area. 

In addition, it’s a piece of a well known MEAN tech stack (the blend of MongoDB, Express.js, Angular, and Node.js — four tools that handle all vital parts of web application development). 

Designers Can Utilize JavaScript for the Whole Undertaking 

This is perhaps the most clear advantage of Node.js web application development. JavaScript is an unquestionable requirement for web development. Regardless of whether you construct a multi-page or single-page application, you need to know JS well. On the off chance that you are now OK with JavaScript, learning Node.js won’t be an issue. Grammar, fundamental usefulness, primary standards — every one of these things are comparable. 

In the event that you have JS designers in your group, it will be simpler for them to learn JS-based Node than a totally new dialect. What’s more, the front-end and back-end codebase will be basically the same, simple to peruse, and keep up — in light of the fact that they are both JS-based. 

A Quick Environment for Microservice Development 

There’s another motivation behind why Node.js got famous so rapidly. The environment suits well the idea of microservice development (spilling stone monument usefulness into handfuls or many more modest administrations). 

Microservices need to speak with one another rapidly — and Node.js is probably the quickest device in information handling. Among the fundamental Node.js benefits for programming development are its non-obstructing algorithms.

Node.js measures a few demands all at once without trusting that the first will be concluded. Many microservices can send messages to one another, and they will be gotten and addressed all the while. 

Versatile Web Application Development 

Node.js was worked in view of adaptability — its name really says it. The environment permits numerous hubs to run all the while and speak with one another. Here’s the reason Node.js adaptability is better than other web backend development arrangements. 

Node.js has a module that is liable for load adjusting for each running CPU center. This is one of numerous Node.js module benefits: you can run various hubs all at once, and the environment will naturally adjust the responsibility. 

Node.js permits even apportioning: you can part your application into various situations. You show various forms of the application to different clients, in light of their age, interests, area, language, and so on. This builds personalization and diminishes responsibility. Hub accomplishes this with kid measures — tasks that rapidly speak with one another and share a similar root. 

What’s more, Node’s non-hindering solicitation handling framework adds to fast, letting applications measure a great many solicitations. 

Control Stream Highlights

Numerous designers consider nonconcurrent to be one of the two impediments and benefits of Node.js web application development. In Node, at whatever point the capacity is executed, the code consequently sends a callback. As the quantity of capacities develops, so does the number of callbacks — and you end up in a circumstance known as the callback damnation. 

In any case, Node.js offers an exit plan. You can utilize systems that will plan capacities and sort through callbacks. Systems will associate comparable capacities consequently — so you can track down an essential component via search or in an envelope. At that point, there’s no compelling reason to look through callbacks.


Final Words

So, these are some of the top benefits of Nodejs in web application development. This is how Nodejs is contributing a lot to the field of web application development. 

I hope now you are totally aware of the whole process of how Nodejs is really important for your web project. If you are looking to hire a node js development company in India then I would suggest that you take a little consultancy too whenever you call. 

Good Luck!

Original Source

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Node JS Development Company| Node JS Web Developers-SISGAIN

Top organizations and start-ups hire Node.js developers from SISGAIN for their strategic software development projects in Illinois, USA. On the off chance that you are searching for a first rate innovation to assemble a constant Node.js web application development or a module, Node.js applications are the most appropriate alternative to pick. As Leading Node.js development company, we leverage our profound information on its segments and convey solutions that bring noteworthy business results. For more information email us at hello@sisgain.com

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sophia tondon

sophia tondon


Top 10 NodeJs app Development Companies- ValueCoders

Node.js is a prominent tech trend in the space of web and mobile application development. It has been proven very efficient and useful for a variety of application development. Thus, all business owners are eager to leverage this technology for creating their applications.

Are you striving to develop an application using Node.js? But can’t decide which company to hire for NodeJS app development? Well! Don’t stress over it, as the following list of NodeJS app development companies is going to help you find the best partner.

Let’s take a glance at top NodeJS application development companies to hire developers in 2021 for developing a mind-blowing application solution.

Before enlisting companies, I would like to say that every company has a foundation on which they thrive. Their end goals, qualities, and excellence define their competence. Thus, I prepared this list by considering a number of aspects. While making this list, I have considered the following aspects:

  • Review and rating
  • Enlisted by software peer & forums
  • Hourly price
  • Offered services
  • Year of experience (Average 8+ years)
  • Credibility & Excellence
  • Served clients and more

I believe this list will help you out in choosing the best NodeJS service provider company. So, now let’s explore the top NodeJS developer companies to choose from in 2021.

#1. JSGuru

JSGuru is a top-rated NodeJS app development company with an innovative team of dedicated NodeJS developers engaged in catering best-class UI/UX design, software products, and AWS professional services.

It is a team of one of the most talented developers to hire for all types of innovative solution development, including social media, dating, enterprise, and business-oriented solutions. The company has worked for years with a number of startups and launched a variety of products by collaborating with big-name corporations like T-systems.

If you want to hire NodeJS developers to secure an outstanding application, I would definitely suggest them. They serve in the area of eLearning, FinTech, eCommerce, Telecommunications, Mobile Device Management, and more.

  • Ratings: 4.9/5.0

  • Founded: 2006

  • Headquarters: Banja Luka, Bosnia, and Herzegovina

  • Price: Starting from $50/hour

Visit Website - https://www.valuecoders.com/blog/technology-and-apps/top-node-js-app-development-companies

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sophia tondon

sophia tondon


10 Reasons Which Make Node.js "A First Choice For Web-App Development"

Businesses and developers opt for Node.js since it possesses unbeatable features like JavaScript. 43% of Node.js developers utilize it for business apps, and 85% primarily use it for web application development. So It Has More To Offer Than Thought!

Before we go ahead, it is essential to understand why Node.js is better?

The Open- source and cross-platform attributes of Node.js make this a preferred choice for web development. Nonetheless, enterprises would be wondering about possible alternatives to Node.js. So here, throughout this blog, we’ll highlight critical pointers that’ll make Node.js a real success for web app development.

Read Full Blog- https://vocal.media/stories/title-10-reasons-which-make-node-js-a-first-choice-for-web-app-development

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