Module

x/grammy_types/markup.ts>ForceReply

Type declarations of the Telegram Bot API.
grammyjs/types
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interface ForceReply
import { type ForceReply } from "https://dotland.deno.dev/x/grammy_types@v3.15.0/markup.ts";

Upon receiving a message with this object, Telegram clients will display a reply interface to the user (act as if the user has selected the bot's message and tapped 'Reply'). This can be extremely useful if you want to create user-friendly step-by-step interfaces without having to sacrifice privacy mode. Not supported in channels and for messages sent on behalf of a Telegram Business account.

Example: A poll bot for groups runs in privacy mode (only receives commands, replies to its messages and mentions). There could be two ways to create a new poll:

Explain the user how to send a command with parameters (e.g. /newpoll question answer1 answer2). May be appealing for hardcore users but lacks modern day polish.

Guide the user through a step-by-step process. 'Please send me your question', 'Cool, now let's add the first answer option', 'Great. Keep adding answer options, then send /done when you're ready'.

The last option is definitely more attractive. And if you use ForceReply in your bot's questions, it will receive the user's answers even if it only receives replies, commands and mentions - without any extra work for the user.

Properties

force_reply: true

Shows reply interface to the user, as if they manually selected the bot's message and tapped 'Reply'

optional
input_field_placeholder: string

The placeholder to be shown in the input field when the reply is active; 1-64 characters

optional
selective: boolean

Use this parameter if you want to force reply from specific users only. Targets: 1) users that are @mentioned in the text of the Message object; 2) if the bot's message is a reply to a message in the same chat and forum topic, sender of the original message.