Modify examples/simple_commands_bot

examples/simple_commands_bot/Cargo.toml

@@ -9,5 +9,6 @@ edition = "2018"
 [dependencies]
 log = "0.4.8"
 tokio = "0.2.9"
+rand = "0.7.3"
 pretty_env_logger = "0.4.0"
 teloxide = { path = "../../" }

examples/simple_commands_bot/src/main.rs

@@ -1,5 +1,7 @@
 use teloxide::{prelude::*, utils::command::BotCommand};
 
+use rand::{thread_rng, Rng};
+
 #[derive(BotCommand)]
 #[command(rename = "lowercase", description = "These commands are supported:")]
 enum Command {
@@ -7,10 +9,8 @@ enum Command {
     Help,
     #[command(description = "be a cat.")]
     Meow,
-    #[command(description = "be a dog.")]
-    Woof,
-    #[command(description = "be a cow.")]
-    Moo,
+    #[command(description = "generate a random number within [0; 1).")]
+    Generate,
 }
 
 async fn handle_command(
@@ -34,9 +34,12 @@ async fn handle_command(
 
     match command {
         Command::Help => ctx.answer(Command::descriptions()).send().await?,
+        Command::Generate => {
+            ctx.answer(thread_rng().gen_range(0.0, 1.0).to_string())
+                .send()
+                .await?
+        }
         Command::Meow => ctx.answer("I am a cat! Meow!").send().await?,
-        Command::Woof => ctx.answer("I am a dog! Woof!").send().await?,
-        Command::Moo => ctx.answer("I am a cow! Moo!").send().await?,
     };
 
     Ok(())