I am currently trying to code a linkblocker in discord.js. The link should only be deleted if you are not in the group with the correct ID.
My code:
client.on('message', (message) => {
if(!message.member.roles.cache.has('835605932317868042')) { //<- Group ID
if (message.content.includes('discord.gg/')) {
message.delete()
.then(message.channel.send('<@!' + message.member + '>' + config.link_deleted_chat_message))
.then(message.member.send('<@!' + message.member + '>' + config.link_deleted_dm_message))
}
else if (message.content.includes('discordapp.com/')) {
message.delete()
.then(message.channel.send('<@!' + message.member + '>' + config.link_deleted_chat_message))
.then(message.member.send('<@!' + message.member + '>' + config.link_deleted_dm_message))
}
else if (message.content.includes('https:')) {
message.delete()
.then(message.channel.send('<@!' + message.member + '>' + config.link_deleted_chat_message))
.then(message.member.send('<@!' + message.member + '>' + config.link_deleted_dm_message))
}
else if (message.content.includes('http:')) {
message.delete()
.then(message.channel.send('<@!' + message.member + '>' + config.link_deleted_chat_message))
.then(message.member.send('<@!' + message.member + '>' + config.link_deleted_dm_message))
}
else if (message.content.includes('www.')) {
message.delete()
.then(message.channel.send('<@!' + message.member + '>' + config.link_deleted_chat_message))
.then(message.member.send('<@!' + message.member + '>' + config.link_deleted_dm_message))
}
}
})
However, when I send a link to a channel, the bot deletes the link, but then crashes.
Error:
C:\Users\knock\OneDrive\Desktop\Frreiheit\main.js:61
if(!message.member.roles.cache.has('835605932317868042')) {
^
TypeError: Cannot read property 'roles' of null
at Client.<anonymous> (C:\Users\knock\OneDrive\Desktop\Frreiheit\main.js:61:24)
at Client.emit (events.js:327:22)
at MessageCreateAction.handle (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\discord.js\src\client\actions\MessageCreate.js:31:14)
at Object.module.exports [as MESSAGE_CREATE] (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\discord.js\src\client\websocket\handlers\MESSAGE_CREATE.js:4:32)
at WebSocketManager.handlePacket (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\discord.js\src\client\websocket\WebSocketManager.js:384:31)
at WebSocketShard.onPacket (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\discord.js\src\client\websocket\WebSocketShard.js:444:22)
at WebSocketShard.onMessage (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\discord.js\src\client\websocket\WebSocketShard.js:301:10)
at WebSocket.onMessage (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\ws\lib\event-target.js:132:16)
at WebSocket.emit (events.js:315:20)
at Receiver.receiverOnMessage (C:\Users\knock\OneDrive\Desktop\Frreiheit\node_modules\ws\lib\websocket.js:835:20)
That's probably because you are sending a message to the channel after you have deleted it. Maybe it returns member as null because of you being a bot. Just do a simple check, if the message is not coming from you or a bot to see, if that is the problem.
message.member can be null in some cases. From the documentation:
Represents the author of the message as a guild member. Only available if the message comes from a guild where the author is still a member
source: https://discord.js.org/#/docs/main/stable/class/Message?scrollTo=member
So probably a message is sent from an author that is not considered a member.
As Veda said, message.member
will be null
if the message was not sent in a guild. You can simply check if message.member
exists before looking at it's roles:
if (message.member && !message.member.roles.cache.has(...))
As I mentioned in my comment, after fixing this issue, your bot still won't work because you're misusing promises . For example:
message
.delete()
.then(message.channel.send('...'))
.then(message.member.send('...'));
// should be:
message
.delete()
.then(() => message.channel.send('...'))
.then(() => message.member.send('...'));
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