telegram.bot (version 2.2.0)

+.TelegramObject: Constructing an Updater

Description

With + you can add any kind of Handler to an Updater's Dispatcher (or directly to a Dispatcher).

Usage

# S3 method for TelegramObject
+(e1, e2)

Arguments

e1

An object of class Updater or Dispatcher.

e2

An object of class Handler.

Details

See add_handler for further information.

Examples

# NOT RUN {
# You can chain multiple handlers
start <- function(bot, update){
  bot$sendMessage(chat_id = update$message$chat_id,
                  text = sprintf("Hello %s!",
                                 update$message$from$first_name))
}
echo <- function(bot, update){
  bot$sendMessage(chat_id = update$message$chat_id,
                  text = update$message$text)
}

updater <- Updater("TOKEN") + CommandHandler("start", start) +
  MessageHandler(echo, MessageFilters$text)
  
# And keep adding...
caps <- function(bot, update, args){
  if (length(args > 0L)){
    text_caps <- toupper(paste(args, collapse = " "))
    bot$sendMessage(chat_id = update$message$chat_id,
                    text = text_caps) 
  }
}

updater <- updater + CommandHandler("caps", caps, pass_args = TRUE)

# Give it a try!
updater$start_polling()
# Send '/start' to the bot, '/caps foo' or just a simple text
# }