add_handler {telegram.bot} | R Documentation |
Add a handler
Description
Register a handler. A handler must be an instance of a subclass of
Handler
. All handlers are organized in groups with a numeric
value. The default group is 1. All groups will be evaluated for handling an
update, but only 0 or 1 handler per group will be used.
Usage
add_handler(handler, group = 1L)
Arguments
handler |
A |
group |
The group identifier, must be higher or equal to 1. Default is 1. |
Details
You can use the add
(+
) operator instead.
The priority/order of handlers is determined as follows:
Priority of the group (lower group number = higher priority)
The first handler in a group which should handle an update will be used. Other handlers from the group will not be used. The order in which handlers were added to the group defines the priority (the first handler added in a group has the highest priority).