Module application 

The core Application that dispatches updates to registered handlers. The core Application that dispatches updates to registered handlers.

Ported from python-telegram-bot/src/telegram/ext/_application.py.

Lifecycle

initialize  ->  start  ->  idle (run_polling / run_webhook)  ->  stop  ->  shutdown

Handler dispatch

Handlers are organised into groups (a BTreeMap<i32, Vec<Handler>>). Groups are iterated in ascending numeric order. Within each group, the first handler whose check_update returns true wins – at most one handler per group fires.

Structs

Application

The main entry point for a PTB-style Telegram bot application.

Handler

A registered handler: the check_update predicate + callback + blocking flag.

PollingBuilder

Builder for configuring and starting the polling loop.

Enums

ApplicationError

Errors from the Application itself.

HandlerError

Errors that can occur during update processing.

Constants

DEFAULT_GROUP

The default handler dispatch group (group 0).

Type Aliases

ErrorHandlerCallback

A boxed, type-erased async error handler callback.

HandlerCallback

A boxed, type-erased async handler callback.

LifecycleHook

Post-lifecycle hook signature.