006-filters.md

[006] Filters in Telegraf

You can use bot.on listener with message("text") or any other filter

Note
bot.on("message"|"other_type") has been deprecated. It may be removed in future versions. So prefer new filters.

Available Types

You can see all available filters here or your code editor will suggest you.

Example

Here is an example how to use filters

import { message } from "telegraf/filters";

bot.on(message("text"), async (ctx, next) => {
  // next is added because other listners below this wont work if await next(); is not added
  await next();
});

More Details

You can also add multiple listeners using array like given below:

bot.on([message("text"), message("photo")], async (ctx) => {
  ctx.reply("Received Text or Photo");
});

ctx.has checks with filters

You can check if ctx has a filter like this.

if(ctx.has(message("text")){
ctx.reply("It is text");
}
else if(ctx.has(message("photo")){
ctx.reply("It is photo");
}