djs.ext.commands

djs.ext.commands is imitation of discord.ext.commands written in TypeScript.
Usages are similar to original.

Installation

npm install djs.ext.commands

Quick Example

import { Formatters as Format } from 'discord.js'
import { Bot, Ctx } from 'djs.ext.commands'

class MyBot extends Bot {
	@Bot.event('ready')
	async ready() {
		console.log('I\'m ready!')
	}
	@Bot.textCommand()
	async ping(ctx: Ctx.Text) {
		ctx.send('Pong!')
	}
	@Bot.slashCommand({ argDefinitions: [ { name: 'input', type: 'string' } ] })
	async get_input(ctx: Ctx.Slash<[ 'string' ]>) {
		await ctx.send(`Input: ${Format.inlineCode(ctx.args[0])}`)
	}
}

const bot = new MyBot({ prefix: '!' })

bot.run('TOKEN')

You can find more examples in the examples directory.

Decorator?

Basically, JavaScript doesn't support decorator syntax.
If you want to use decorator syntax, you should use Babel or TypeScript, etc.

Difference with discord.ext.commands

Class syntax is recommended

Decorator syntax is only can be used in class.
So, using class syntax is recommended.
Without decorator syntax, you can write code like this:

import { Bot } from 'djs.ext.commands'

const bot = new Bot()

;(bot as any).onReady = () => {
	console.log('I\'m ready!')
}
Bot.event(bot, 'onReady')

;(bot as any).ping = (ctx: Ctx.Text) => {
	ctx.send('Pong!')
}
Bot.textCommand()(bot, 'ping')

bot.run('TOKEN')

But, as you know, this way is bad.

No automatic argument parsing without argTypes/argDefinitions option of command

Due to limit of JavaScript, arguments of listener cannot parsed automatically.
So, if you want parsed arguments, you should set argTypes/argDefinitions option yourself like this:

import { Bot, Ctx } from 'djs.ext.commands'

class MyBot extends Bot {
	@Bot.textCommand({ argTypes: [ 'number', 'number' ] })
	async sum(ctx: Ctx.Text<[ 'number', 'number' ]>) {
		const [ first, second ] = ctx.args
		ctx.send(`Sum of ${first} and ${second} is ${first + second}.`)
	}
}