├── package.json
├── README.md
├── .gitignore
└── api
    └── webhook.js


/package.json:
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 1 | {
 2 |   "name": "test-bot",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "keywords": [],
10 |   "author": "",
11 |   "license": "ISC",
12 |   "devDependencies": {
13 |     "ngrok": "^5.0.0-beta.2"
14 |   },
15 |   "dependencies": {
16 |     "node-telegram-bot-api": "^0.65.1"
17 |   }
18 | }
19 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | # Telegram bot
 2 | 
 3 | A test telegram bot which is deployed to Vercel. See my blog post on it:
 4 | 
 5 | [https://marclittlemore.com/serverless-telegram-chatbot-vercel](https://marclittlemore.com/serverless-telegram-chatbot-vercel/)
 6 | 
 7 | ## Installing
 8 | 
 9 | Clone this repository into a new directory and install the dependencies:
10 | 
11 | ```bash
12 | git clone git@github.com:MarcL/telegram-test-bot.git
13 | cd telegram-test-bot
14 | npm install
15 | ```
16 | 
17 | ## Deploying to Vercel
18 | 
19 | Install the Vercel command line tools using `npm`:
20 | 
21 | ```bash
22 | npm install -g vercel
23 | ```
24 | 
25 | Deploy the project to your Vercel account:
26 | 
27 | ```bash
28 | vercel
29 | ```
30 | 


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/.gitignore:
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 1 | # Logs
 2 | logs
 3 | *.log
 4 | npm-debug.log*
 5 | 
 6 | # Runtime data
 7 | pids
 8 | *.pid
 9 | *.seed
10 | 
11 | # Directory for instrumented libs generated by jscoverage/JSCover
12 | lib-cov
13 | 
14 | # Coverage directory used by tools like istanbul
15 | coverage
16 | 
17 | # nyc test coverage
18 | .nyc_output
19 | 
20 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
21 | .grunt
22 | 
23 | # node-waf configuration
24 | .lock-wscript
25 | 
26 | # Compiled binary addons (http://nodejs.org/api/addons.html)
27 | build/Release
28 | 
29 | # Dependency directories
30 | node_modules
31 | jspm_packages
32 | 
33 | # Optional npm cache directory
34 | .npm
35 | 
36 | # Optional REPL history
37 | .node_repl_history
38 | 
39 | lib
40 | .env
41 | .env.build
42 | 
43 | .vercel
44 | 


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/api/webhook.js:
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 1 | // Require our Telegram helper package
 2 | const TelegramBot = require('node-telegram-bot-api');
 3 | 
 4 | // Export as an asynchronous function
 5 | // We'll wait until we've responded to the user
 6 | module.exports = async (request, response) => {
 7 |     try {
 8 |         // Create our new bot handler with the token
 9 |         // that the Botfather gave us
10 |         // Use an environment variable so we don't expose it in our code
11 |         const bot = new TelegramBot(process.env.TELEGRAM_TOKEN);
12 | 
13 |         // Retrieve the POST request body that gets sent from Telegram
14 |         const { body } = request;
15 | 
16 |         // Ensure that this is a message being sent
17 |         if (body.message) {
18 |             // Retrieve the ID for this chat
19 |             // and the text that the user sent
20 |             const { chat: { id }, text } = body.message;
21 | 
22 |             // Create a message to send back
23 |             // We can use Markdown inside this
24 |             const message = `✅ Thanks for your message: *"${text}"*\nHave a great day! 👋🏻`;
25 | 
26 |             // Send our new message back in Markdown
27 |             await bot.sendMessage(id, message, {parse_mode: 'Markdown'});
28 |         }
29 |     }
30 |     catch(error) {
31 |         // If there was an error sending our message then we 
32 |         // can log it into the Vercel console
33 |         console.error('Error sending message');
34 |         console.log(error.toString());
35 |     }
36 |     
37 |     // Acknowledge the message with Telegram
38 |     // by sending a 200 HTTP status code
39 |     response.send('OK');
40 | };
41 | 


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