teloxide/examples/heroku_ping_pong.rs
Alessio 5e8682da8c Update the heroku example to use 0.0.0.0 as ip
On heroku we canno't bind on 127.0.0.1

Former-commit-id: c95203759a
2022-06-29 15:10:45 +02:00

59 lines
1.6 KiB
Rust

// The version of Heroku ping-pong-bot, which uses a webhook to receive updates
// from Telegram, instead of long polling.
//
// You will need to configure the buildpack for heroku. We will be using Heroku
// rust buildpack [1]. Configuration was done by using heroku CLI.
//
// If you're creating a new Heroku application, run this:
//
// ```
// heroku create --buildpack emk/rust
// ```
//
// To set buildpack for existing applicaton:
//
// ```
// heroku buildpacks:set emk/rust
// ```
//
// [1]: https://github.com/emk/heroku-buildpack-rust
use std::env;
use teloxide::{dispatching::update_listeners::webhooks, prelude::*};
use url::Url;
#[tokio::main]
async fn main() {
pretty_env_logger::init();
log::info!("Starting Heroku ping-pong bot...");
let bot = Bot::from_env().auto_send();
let token = bot.inner().token();
// Heroku auto defines a port value
let port: u16 = env::var("PORT")
.expect("PORT env variable is not set")
.parse()
.expect("PORT env variable value is not an integer");
let addr = ([0, 0, 0, 0], port).into();
// Heroku host example: "heroku-ping-pong-bot.herokuapp.com"
let host = env::var("HOST").expect("HOST env variable is not set");
let url = Url::parse(&format!("https://{host}/webhooks/{token}")).unwrap();
let listener = webhooks::axum(bot.clone(), webhooks::Options::new(addr, url))
.await
.expect("Couldn't setup webhook");
teloxide::repl_with_listener(
bot,
|msg: Message, bot: AutoSend<Bot>| async move {
bot.send_message(msg.chat.id, "pong").await?;
respond(())
},
listener,
)
.await;
}