# Slash Commands in Discord.js

These are some simple examples for using Slash Commands in discord.js.  
discord.js doesn't have full support for slash commands yet ([there's a wip pr](https://github.com/discordjs/discord.js/pull/5106)) but you can still use the underlying api and websocket to use them.  
Note that discord.js doesn't officially support using client.api, this is basically just a workaround until they fully release support.

**Please read [Discord's Slash Command docs](https://discord.com/developers/docs/interactions/slash-commands) since they have actual docs and details for slash commands; the code examples below are just how you can implement it using discord.js.**

Note that slash commands won't show in a server unless that server has authorized it with the `applications.commands` oauth2 scope (not just the `bot` scope).

This does not require a discord.js update! It should work as long as you're using a modern version (anything v12 would probably work, obviously v12.5.1/latest is recommended)

> Alternatively, you can manage commands and handle interactions with [slash-create](https://github.com/Snazzah/slash-create).

## Registering a Command:
You only need to register each command one time. You might wanna use an eval command for this.

> Alternatively, instead of using discord.js to create the command, you might want to use a UI tool such as [Postman](https://getpostman.com), or create them in your code with [discord-slash-commands](https://github.com/MeguminSama/discord-slash-commands)

Send a [Command](https://discord.com/developers/docs/interactions/slash-commands#applicationcommand) object

> For help creating the command object json, try https://rauf.wtf/slash

if your application id and bot id are different, change client.user.id to the application id
### Global Commands
global commands show in all authorized servers, but take up to an hour to deploy.
```js
client.api.applications(client.user.id).commands.post({data: {
    name: 'ping',
    description: 'ping pong!'
}})
```

### Guild-specific commands
guild commands deploy immediately - use these for testing
```js
client.api.applications(client.user.id).guilds('guild id').commands.post({data: {
    name: 'ping',
    description: 'ping pong!'
}})
```

## Receiving the Event
`interaction` is an [Interaction object](https://discord.com/developers/docs/interactions/slash-commands#interaction)
```js
client.ws.on('INTERACTION_CREATE', async interaction => {
  // do stuff and respond here
})
```

## Responding To An Interaction:
this goes inside the "receiving the event" block.  
send an [Interaction Response](https://discord.com/developers/docs/interactions/slash-commands#interaction-interaction-response) object
```js
client.api.interactions(interaction.id, interaction.token).callback.post({data: {
  type: 4,
  data: {
    content: 'hello world!'
  }
}})
```

## Sending a Followup Message
this also goes inside the "receiving the event" block.  
see [Webhook#send docs](https://discord.js.org/#/docs/main/master/class/Webhook?scrollTo=send)
```js
new Discord.WebhookClient(client.user.id, interaction.token).send('hello world')
```

shortlink: [s.advaith.io/slashdjs](https://s.advaith.io/slashdjs)