# Telegraf-Question

This package allows you to ask users questions and get an answer with Promise.

Install

$ npm i telegraf-question

$ yarn add telegraf-question

Documentation

1TelegrafQuestion(config?: {
2    cancelTimeout?: number; // Throw null if user doesn't reply; leave blank to wait forever.
3})

1TelegrafContext.ask(
2    question: { text: string; extra?: ExtraReplyMessage } | string,
3    cancel?: ((ctx: TelegrafContext) => Promise<boolean> | boolean) | string | null,
4    type: 'text' | 'number' | 'callback_query' = 'text',
5    errorText: { text: string; extra?: ExtraReplyMessage } | string | null = null,
6    filter?: (ctx: TelegrafContext) => Promise<boolean> | boolean
7): Promise<TelegrafContext | null> // returns null on cancel

Simple Example

1import Telegraf, { Markup } from "telegraf";
2import TelegrafQuestion from "telegraf-question";
3
4let username = 'user';
5
6let bot = new Telegraf(<BOT_TOKEN>);
7bot.use(TelegrafQuestion({
8    cancelTimeout: 300000 // 5 min
9}));
10
11bot.action('change_username', async (ctx, next) => {
12    ctx.answerCbQuery();
13    let newUsername = await ctx.ask('Send new username:');
14    if (newUsername === null) {
15        return next();
16    }
17    username = newUsername.message.text;
18    next();
19});
20
21bot.use((ctx) => {
22    ctx.reply(`Hi ${username}.`, Markup.inlineKeyboard([
23        [Markup.callbackButton('Change username', 'change_username')],
24    ]).extra());
25});
26
27bot.launch();
28

Full Example

1import Telegraf, { Markup } from "telegraf";
2import TelegrafQuestion from "telegraf-question";
3
4let username = 'user';
5let age = 0;
6let online = false;
7
8let bot = new Telegraf(<BOT_TOKEN>);
9bot.use(TelegrafQuestion());
10
11bot.action('change_username', async (ctx, next) => {
12    ctx.answerCbQuery();
13    let newUsername = await ctx.ask('Send new username:');
14    username = newUsername.message.text;
15    next();
16});
17
18bot.action('change_age', async (ctx, next) => {
19    ctx.answerCbQuery();
20    let newAge = await ctx.ask(
21        {
22            text: 'Send new age:',
23            extra: {
24                reply_markup: Markup.keyboard(['Cancel']).resize(),
25            }
26        },
27        'Cancel',
28        'number',
29        'Please send a whole number.',
30        (ctx) => {
31            let num = parseInt(ctx.message?.text);
32            return num >= 0;
33        }
34    );
35
36    if (newAge !== null) {
37        age = parseInt(newAge.message.text);
38    }
39    next();
40});
41
42bot.action('change_online', async (ctx, next) => {
43    ctx.answerCbQuery();
44    let status = await ctx.ask(
45        {
46            text: '<b>Select status:</b>',
47            extra: {
48                reply_markup: Markup.inlineKeyboard([
49                    [
50                        Markup.callbackButton('Online', 'online'),
51                        Markup.callbackButton('Offline', 'offline'),
52                    ],
53                    [Markup.callbackButton('Cancel', 'cancel_status')]
54                ]),
55                parse_mode: 'HTML'
56            }
57        },
58        (ctx) => ctx.callbackQuery?.data === 'cancel_status',
59        'callback_query',
60        null,
61        (ctx) => ['online', 'offline'].some(el => ctx.callbackQuery.data === el),
62    );
63    
64    if (status !== null) {
65        status.answerCbQuery();
66        online = status.callbackQuery.data === 'online';
67    }
68    next();
69});
70
71bot.use((ctx) => {
72    ctx.reply(`Hi ${username}.\nAge: ${age}\nOnline: ${online ? 'Yes' : 'No'}`, Markup.inlineKeyboard([
73        [Markup.callbackButton('Change username', 'change_username')],
74        [Markup.callbackButton('Change age', 'change_age')],
75        [Markup.callbackButton('Change online', 'change_online')],
76    ]).extra());
77});
78
79bot.launch();