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Module

x/grammy/composer.ts>Composer#reaction

The Telegram Bot Framework.
grammyjs/grammY
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method Composer.prototype.reaction
import { Composer } from "https://deno.land/x/grammy@v1.30.1/composer.ts";

Registers some middleware that will only be added when a new reaction of the given type is added to a message.

// Reacts to new '👍' reactions
bot.reaction('👍', ctx => { ... })
// Reacts to new '👍' or '👎' reactions
bot.reaction(['👍', '👎'], ctx => { ... })

Note that you have to enable message_reaction updates in allowed_updates if you want your bot to receive updates about message reactions.

bot.reaction will trigger if:

  • a new emoji reaction is added to a message
  • a new custom emoji reaction is added a message

bot.reaction will not trigger if:

  • a reaction is removed
  • an anonymous reaction count is updated, such as on channel posts
  • message_reaction updates are not enabled for your bot

Parameters

reaction: MaybeArray<ReactionTypeEmoji["emoji"] | ReactionType>

The reaction to look for

...middleware: Array<ReactionMiddleware<C>>

The middleware to register