使用节点 js 从 webhook 电报机器人获取数据

Question

I set the server address for the bot with /setwebhook , now how can I get the data with only node js and https package to access {message:{...} }? (like /getupdates method) but by webhook, probably I mean like the php code but in node js: file_get_contents("php://input") . Should I use async or https.createServer ? If yes, how and please explain a little

Answer 1

You have to create a server that will handle receiving the data. You can do this by using http.createServer or, more conveniently, using a library such as Express . Simple implementation using Express would look like this:

const app = express();

app.post(`/api/telegram${process.env.TELEGRAM_BOT_TOKEN}`, async (req, res) => {
    
    const message = req.body.message || req.body.edited_message;
    ...
});

In this example, I use bot token in the webhook url (since I and Telegram are the only entities that know the bot token, I can be sure that the requests to the url come from Telegram). There are better ways to make the webhook secure, such as using secret_token as specified in the docs for setWebhook method.

For development purposes, you can use a service like ngrok to redirect requests from the bot webhook to localhost.

To get an idea of a fully functioning example of implementing webhook with node.js and Express, you can check my open-source project on Github.