> [v0.9 -> v0.10 migration guide >>](MIGRATION_GUIDE.md#09---010)
## Highlights
- **Declarative design.** teloxide is based upon [`dptree`], a functional [chain of responsibility] pattern that allows you to express pipelines of message processing in a highly declarative and extensible style.
[`dptree`]: https://github.com/teloxide/dptree
[chain of responsibility]: https://en.wikipedia.org/wiki/Chain-of-responsibility_pattern
- **Dialogues management subsystem.** Our dialogues management subsystem is simple and easy-to-use, and, furthermore, is agnostic of how/where dialogues are stored. For example, you can just replace a one line to achieve [persistence]. Out-of-the-box storages include [Redis] and [Sqlite].
[persistence]: https://en.wikipedia.org/wiki/Persistence_(computer_science)
[Redis]: https://redis.io/
[Sqlite]: https://www.sqlite.org
- **Strongly typed commands.** You can describe bot commands as enumerations, and then they'll be automatically constructed from strings — just like JSON structures in [`serde-json`] and command-line arguments in [`structopt`].
[`structopt`]: https://github.com/TeXitoi/structopt
[`serde-json`]: https://github.com/serde-rs/json
## Setting up your environment
1. [Download Rust](http://rustup.rs/).
2. Create a new bot using [@Botfather](https://t.me/botfather) to get a token in the format `123456789:blablabla`.
3. Initialise the `TELOXIDE_TOKEN` environmental variable to your token:
```bash
# Unix-like
$ export TELOXIDE_TOKEN=
# Windows command line
$ set TELOXIDE_TOKEN=
# Windows PowerShell
$ $env:TELOXIDE_TOKEN=
```
4. Make sure that your Rust compiler is up to date (teloxide currently requires rustc at least version 1.58):
```bash
# If you're using stable
$ rustup update stable
$ rustup override set stable
# If you're using nightly
$ rustup update nightly
$ rustup override set nightly
```
5. Run `cargo new my_bot`, enter the directory and put these lines into your `Cargo.toml`:
```toml
[dependencies]
teloxide = { version = "0.10", features = ["macros", "auto-send"] }
log = "0.4"
pretty_env_logger = "0.4"
tokio = { version = "1.8", features = ["rt-multi-thread", "macros"] }
```
## API overview
### The dices bot
This bot replies with a dice throw to each received message:
[[`examples/throw_dice.rs`](examples/throw_dice.rs)]
```rust,no_run
use teloxide::prelude::*;
#[tokio::main]
async fn main() {
pretty_env_logger::init();
log::info!("Starting throw dice bot...");
let bot = Bot::from_env();
teloxide::repl(bot, |message: Message, bot: Bot| async move {
bot.send_dice(message.chat.id).await?;
respond(())
})
.await;
}
```
### Commands
Commands are strongly typed and defined declaratively, similar to how we define CLI using [structopt] and JSON structures in [serde-json]. The following bot accepts these commands:
- `/username `
- `/usernameandage `
- `/help`
[structopt]: https://docs.rs/structopt/0.3.9/structopt/
[serde-json]: https://github.com/serde-rs/json
[[`examples/command.rs`](examples/command.rs)]
```rust,no_run
use teloxide::{prelude::*, utils::command::BotCommands};
use std::error::Error;
#[tokio::main]
async fn main() {
pretty_env_logger::init();
log::info!("Starting command bot...");
let bot = Bot::from_env();
teloxide::commands_repl(bot, answer, Command::ty()).await;
}
#[derive(BotCommands, Clone)]
#[command(rename = "lowercase", description = "These commands are supported:")]
enum Command {
#[command(description = "display this text.")]
Help,
#[command(description = "handle a username.")]
Username(String),
#[command(description = "handle a username and an age.", parse_with = "split")]
UsernameAndAge { username: String, age: u8 },
}
async fn answer(
bot: Bot,
message: Message,
command: Command,
) -> Result<(), Box> {
match command {
Command::Help => {
bot.send_message(message.chat.id, Command::descriptions().to_string()).await?
}
Command::Username(username) => {
bot.send_message(message.chat.id, format!("Your username is @{username}.")).await?
}
Command::UsernameAndAge { username, age } => {
bot.send_message(
message.chat.id,
format!("Your username is @{username} and age is {age}."),
)
.await?
}
};
Ok(())
}
```
### Dialogues management
A dialogue is typically described by an enumeration where each variant is one possible state of the dialogue. There are also _state handler functions_, which may turn a dialogue from one state to another, thereby forming an [FSM].
[FSM]: https://en.wikipedia.org/wiki/Finite-state_machine
Below is a bot that asks you three questions and then sends the answers back to you:
[[`examples/dialogue.rs`](examples/dialogue.rs)]
```rust,ignore
use teloxide::{dispatching::dialogue::InMemStorage, prelude::*};
type MyDialogue = Dialogue>;
type HandlerResult = Result<(), Box>;
#[derive(Clone, Default)]
pub enum State {
#[default]
Start,
ReceiveFullName,
ReceiveAge {
full_name: String,
},
ReceiveLocation {
full_name: String,
age: u8,
},
}
#[tokio::main]
async fn main() {
pretty_env_logger::init();
log::info!("Starting dialogue bot...");
let bot = Bot::from_env();
Dispatcher::builder(
bot,
Update::filter_message()
.enter_dialogue::, State>()
.branch(dptree::case![State::Start].endpoint(start))
.branch(dptree::case![State::ReceiveFullName].endpoint(receive_full_name))
.branch(dptree::case![State::ReceiveAge { full_name }].endpoint(receive_age))
.branch(
dptree::case![State::ReceiveLocation { full_name, age }].endpoint(receive_location),
),
)
.dependencies(dptree::deps![InMemStorage::::new()])
.enable_ctrlc_handler()
.build()
.dispatch()
.await;
}
async fn start(bot: Bot, msg: Message, dialogue: MyDialogue) -> HandlerResult {
bot.send_message(msg.chat.id, "Let's start! What's your full name?").await?;
dialogue.update(State::ReceiveFullName).await?;
Ok(())
}
async fn receive_full_name(bot: Bot, msg: Message, dialogue: MyDialogue) -> HandlerResult {
match msg.text() {
Some(text) => {
bot.send_message(msg.chat.id, "How old are you?").await?;
dialogue.update(State::ReceiveAge { full_name: text.into() }).await?;
}
None => {
bot.send_message(msg.chat.id, "Send me plain text.").await?;
}
}
Ok(())
}
async fn receive_age(
bot: Bot,
msg: Message,
dialogue: MyDialogue,
full_name: String, // Available from `State::ReceiveAge`.
) -> HandlerResult {
match msg.text().map(|text| text.parse::()) {
Some(Ok(age)) => {
bot.send_message(msg.chat.id, "What's your location?").await?;
dialogue.update(State::ReceiveLocation { full_name, age }).await?;
}
_ => {
bot.send_message(msg.chat.id, "Send me a number.").await?;
}
}
Ok(())
}
async fn receive_location(
bot: Bot,
msg: Message,
dialogue: MyDialogue,
(full_name, age): (String, u8), // Available from `State::ReceiveLocation`.
) -> HandlerResult {
match msg.text() {
Some(location) => {
let message = format!("Full name: {full_name}\nAge: {age}\nLocation: {location}");
bot.send_message(msg.chat.id, message).await?;
dialogue.exit().await?;
}
None => {
bot.send_message(msg.chat.id, "Send me plain text.").await?;
}
}
Ok(())
}
```
[More examples >>](examples/)
## FAQ
**Q: Where I can ask questions?**
A:
- [Issues] is a good place for well-formed questions about the library design, enhancements, and bug reports.
- [GitHub Discussions] is a place where you can ask us for help in a less formal manner.
- If you need quick help in real-time, you should ask a question in [our official Telegram group].
[Issues]: https://github.com/teloxide/teloxide/issues
[our official Telegram group]: https://t.me/teloxide
[GitHub Discussions]: https://github.com/teloxide/teloxide/discussions
**Q: Do you support the Telegram API for clients?**
A: No, only the bots API.
**Q: Can I use webhooks?**
A: You can! Teloxide has a built-in support for webhooks in `dispatching::update_listeners::webhooks` module. See how it's used in [`examples/ngrok_ping_pong_bot`](examples/ngrok_ping_pong.rs) and [`examples/heroku_ping_pong_bot`](examples/heroku_ping_pong.rs).
**Q: Can I handle both callback queries and messages within a single dialogue?**
A: Yes, see [`examples/purchase.rs`](examples/purchase.rs).
## Community bots
Feel free to propose your own bot to our collection!
- [`raine/tgreddit`](https://github.com/raine/tgreddit) — A bot that sends the top posts of your favorite subreddits to Telegram.
- [`magnickolas/remindee-bot`](https://github.com/magnickolas/remindee-bot) — Telegram bot for managing reminders.
- [`WaffleLapkin/crate_upd_bot`](https://github.com/WaffleLapkin/crate_upd_bot) — A bot that notifies about crate updates.
- [`mattrighetti/GroupActivityBot`](https://github.com/mattrighetti/group-activity-bot-rs) — Telegram bot that keeps track of user activity in groups.
- [`alenpaul2001/AurSearchBot`](https://gitlab.com/alenpaul2001/aursearchbot) — Telegram bot for searching in Arch User Repository (AUR).
- [`ArtHome12/vzmuinebot`](https://github.com/ArtHome12/vzmuinebot) — Telegram bot for food menu navigate.
- [`studiedlist/EddieBot`](https://gitlab.com/studiedlist/eddie-bot) — Chatting bot with several entertainment features.
- [`modos189/tg_blackbox_bot`](https://gitlab.com/modos189/tg_blackbox_bot) — Anonymous feedback for your Telegram project.
- [`0xNima/spacecraft`](https://github.com/0xNima/spacecraft) — Yet another telegram bot to downloading Twitter spaces.
- [`0xNima/Twideo`](https://github.com/0xNima/Twideo) — Simple Telegram Bot for downloading videos from Twitter via their links.
- [`mattrighetti/libgen-bot-rs`](https://github.com/mattrighetti/libgen-bot-rs) — Telgram bot to interface with libgen.
- [`zamazan4ik/npaperbot-telegram`](https://github.com/zamazan4ik/npaperbot-telegram) — Telegram bot for searching via C++ proposals.
Show bots using teloxide older than v0.6.0
- [`mxseev/logram`](https://github.com/mxseev/logram) — Utility that takes logs from anywhere and sends them to Telegram.
- [`alexkonovalov/PedigreeBot`](https://github.com/alexkonovalov/PedigreeBot) — A Telegram bot for building family trees.
- [`Hermitter/tepe`](https://github.com/Hermitter/tepe) — A CLI to command a bot to send messages and files over Telegram.
- [`myblackbeard/basketball-betting-bot`](https://github.com/myblackbeard/basketball-betting-bot) — The bot lets you bet on NBA games against your buddies.
- [`dracarys18/grpmr-rs`](https://github.com/dracarys18/grpmr-rs) — Modular Telegram Group Manager Bot written in Rust.
- [`ArtHome12/cognito_bot`](https://github.com/ArtHome12/cognito_bot) — The bot is designed to anonymize messages to a group.
- [`crapstone/hsctt`](https://codeberg.org/crapstones-bots/hsctt) — A bot that converts HTTP status codes into text.
See [700+ other public repositories using teloxide >>](https://github.com/teloxide/teloxide/network/dependents)
## Contributing
See [`CONRIBUTING.md`](CONTRIBUTING.md).