Set of useful middlewares

I kept rewriting the same middlewares again and again for all of my bots so I decided to extract them all to a separate package.

Installation

yarn add grammy-middlewares

Usage

All the middleware accessors are factories, even though not all of them have to be. I decided to make API homogeneous.

Some of the factories consume optional or required parameters.

import {
  ignoreOld,
  onlyAdmin,
  onlyPublic,
  onlySuperAdmin,
  sequentialize,
} from "grammy-middlewares";

// ...

bot.use(
  ignoreOld(),
  onlyAdmin((ctx) => ctx.reply("Only admins can do this")),
  onlyPublic((ctx) => ctx.reply("You can only use public chats")),
  onlySuperAdmin(env.SUPER_ADMIN_ID),
  sequentialize(),
);

Middlewares

ignoreOld

Ignores old updates, useful when bot has been down for a while. You can optionally specify the timeout in seconds which defaults to 5 * 60.

onlyAdmin

Checks if the user is an admin. You can optionally specify errorHandler that is called with the context if the user is not an admin.

onlyPublic

Checks if it is a group chat or a channel. You can optionally specify errorHandler that is called with the context if it is not a group chat or a channel.

onlySuperAdmin

Checks if the user is a super admin. You have to provide the super admin id.

sequentialize

The basic sequentialize middleware that takes the chat id as a sequential identifier.

Plugin Summary

• Name: grammy-middlewares
• Source
• Reference: https://github.com/backmeupplz/grammy-middlewares