telegram-bot's Introduction

Rust Telegram Bot Library

Documentation: Latest crates.io version master

A library for writing your own Telegram bots. More information here. Official API here.

Example

Here is a simple example (see example/simple.rs):

extern crate futures;
extern crate telegram_bot;
extern crate tokio;

use std::env;

use futures::{Stream, future::lazy};

use telegram_bot::*;

fn main() {
    let mut runtime = tokio::runtime::current_thread::Runtime::new().unwrap();
    runtime.block_on(lazy(|| {
        let token = env::var("TELEGRAM_BOT_TOKEN").unwrap();
        let api = Api::configure(token).build().unwrap();

        // Convert stream to the stream with errors in result
        let stream = api.stream().then(|mb_update| {
            let res: Result<Result<Update, Error>, ()> = Ok(mb_update);
            res
        });

        // Print update or error for each update.
        tokio::executor::current_thread::spawn(
            stream.for_each(move |update| {
                match update {
                    Ok(update) => {
                        // If the received update contains a new message...
                        if let UpdateKind::Message(message) = update.kind {
                            if let MessageKind::Text { ref data, .. } = message.kind {
                                // Print received text message to stdout.
                                println!("<{}>: {}", &message.from.first_name, data);

                                // Answer message with "Hi".
                                api.spawn(message.text_reply(
                                    format!("Hi, {}! You just wrote '{}'", &message.from.first_name, data)
                                ));
                            }
                        }
                    }
                    Err(_) => {}
                }

                Ok(())
            })
        );

        Ok::<_, ()>(())
    })).unwrap();

    runtime.run().unwrap();
}

You can find a bigger examples in the examples.

Usage

This library is available via crates.io. In order to use it, just add this to your Cargo.toml:

telegram-bot = "0.7"

Collaboration

Yes please! Every type of contribution is welcome: Create issues, hack some code or make suggestions. Don't know where to start? Good first issues are tagged with up for grab.

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