Hosting: Zeabur (Deno)

Zeabur is a platform that allows you to deploy your full-stack applications with ease. It supports various programming languages and frameworks, including Deno and grammY.

This tutorial will guide you how to deploy your grammY bots with Deno to Zeabur.

Looking for the Node.js Version?

This tutorial explains how to deploy a Telegram bot to Zeabur using Deno. If you’re looking for the Node.js version, please check out this tutorial instead.

Prerequisites

To follow along, you need to have GitHub and Zeabur accounts.

Method 1: Create a New Project from Scratch

Make sure you have Deno installed on your local machine.

Initialize your project and install some necessary dependencies:

# Initialize the project.
mkdir grammy-bot
cd grammy-bot

# Create main.ts file
touch main.ts

# Create deno.json file to generate lock file
touch deno.json

Then modify main.ts file with the following code:

import { Bot } from "https://deno.land/x/grammy@v1.27.0/mod.ts";

const token = Deno.env.get("TELEGRAM_BOT_TOKEN");
if (!token) throw new Error("TELEGRAM_BOT_TOKEN is unset");

const bot = new Bot(token);

bot.command("start", (ctx) => ctx.reply("Hello from Deno & grammY!"));

bot.on("message", (ctx) => ctx.reply("How can I help you?"));

bot.start();

Note: Get your bot token with @BotFather on Telegram, and set is as an environment variable TELEGRAM_BOT_TOKEN in Zeabur.

You can check out this tutorial for setting environment variables in Zeabur.

Then run the following command to start your bot:

deno run --allow-net main.ts

Deno will automatically download the dependencies, generate the lock file, and start your bot.

Method 2: Use Zeabur’s Template

Zeabur has already provided a template for you to use. You can find it here.

You can just use the template and start writing your bot’s code.

Deploying

Method 1: Deploy from GitHub in Zeabur’s Dashboard

1. Create a repository on GitHub, it can be public or private and push your code to it.
2. Go to Zeabur dashboard.
3. Click on the New Project button, and click on the Deploy New Service button, choose GitHub as the source and select your repository.
4. Go to Variables tab to add your environment variables like TELEGRAM_BOT_TOKEN.
5. Your service will be deployed automatically.

Method 2: Deploy with Zeabur CLI

cd into your project directory and run the following command:

npx @zeabur/cli deploy

Follow the instructions to select a region to deploy, and your bot will be deployed automatically.