Module tbot::contexts

Contexts for update handlers.

A context is a struct that is passed to update handlers, contains data about the update, and provides methods that infer certain data from the update. For example:

use tbot::prelude::*;

let mut bot = tbot::from_env!("BOT_TOKEN").event_loop();

bot.text(|context| async move {
    let reversed: String = context.text.value.chars().rev().collect();
    context.send_message_in_reply(&reversed).call().await.unwrap();
});

Here, we set a text handler for our bot. Whenever we get a text message, the handler is called with a reference to a Text context that contains data about the incoming data, e.g. the text of the message. Then we call the send_message_in_reply method on the context, which does what its name says: sends a message in the same chat in reply to the incoming message, inferring your bot's token and IDs of the chat and the message.

All contexts have one common field named bot. Through this field, you can call any method using a Bot:

use tbot::types::chat;
const ADMIN_CHAT: chat::Id = chat::Id(0);

bot.text(|context| async move {
    context
        .bot
        .send_message(ADMIN_CHAT, "New message!")
        .call()
        .await
        .unwrap();
});

Most contexts implement certain traits, such as ChatMethods or Pinnable. These traits share common methods between contexts, e.g. send_message_in_reply you have seen above.

Modules

fields	Traits for common context fields.
methods	Traits for calling methods inferring as much data as possible from the context.

Structs

Animation	The context for animation handlers.
Audio	The context for audio handlers.
ChosenInline	The context for chosen_inline handlers.
Command	A wrapping context for commands.
ConnectedWebsite	The context for connected_website handlers.
Contact	The context for contact handlers.
CreatedGroup	The context for created_group handlers.
DataCallback	Context for the data_callback handler.
DeletedChatPhoto	The context for deleted_chat_photo handlers.
Dice	The context for dice handlers.
Document	The context for document handlers.
EditedAnimation	The context for edited_animation handlers.
EditedAudio	The context for edited_audio handlers.
EditedDocument	The context for edited_document handlers.
EditedLocation	The context for edited_location handlers.
EditedPhoto	The context for edited_photo handlers.
EditedText	The context for edited_text handlers.
EditedVideo	The context for edited_video handlers.
Game	The context for game handlers.
GameCallback	Context for the game_callback handler.
Inline	The context for inline handlers.
Invoice	The context for invoice handlers.
LeftMember	The context for left_member handlers.
Location	The context for location handlers.
Migration	The context for migration handlers.
NewChatPhoto	The context for new_chat_photo handlers.
NewChatTitle	The context for new_chat_title handlers.
NewMembers	The context for new_members handlers.
Passport	The context for passport handlers.
Payment	The context for payment handlers.
Photo	The context for photo handlers.
PinnedMessage	The context for pinned_message handlers.
Poll	The context for poll handlers.
PollAnswer	The context for poll_answer handlers.
PreCheckout	The context for pre_checkout handlers.
Shipping	The context for shipping handlers.
Sticker	The context for sticker handlers.
Text	The context for text handlers.
Unhandled	The context for unhandled handlers.
Update	The context for before_update and after_update handlers.
UpdatedPoll	The context for updated_poll handlers.
Venue	The context for venue handlers.
Video	The context for video handlers.
VideoNote	The context for video_note handlers.
Voice	The context for voice handlers.