Invalid bitfield in audit log channel permissions event

Hey, I currently have the issue that errors like these are sent multiple times a minute into my bot's console:

RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 3072.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 0.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 2048.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 377959222272.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 1048593.

RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 3072.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 0.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 2048.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 377959222272.
RangeError [BitFieldInvalid]: Invalid bitfield flag or number: 1048593.

It seems like this is being sent every time I am trying to parse permissions sent from the Audit Log event ChannelOverwriteCreate/-Update/-Delete. The code causing this error:

// ...
let changes = {};
for (let change of (entry.changes || [])) {
  changes[change.key] = [change.old_value, change.new_value];
}
if (changes.allow?.[1]) {
 // This line causes the error:
 let allow = new Discord.PermissionsBitField(changes.allow[1]).toArray();
 // ...
}
// ...

// ...
let changes = {};
for (let change of (entry.changes || [])) {
  changes[change.key] = [change.old_value, change.new_value];
}
if (changes.allow?.[1]) {
 // This line causes the error:
 let allow = new Discord.PermissionsBitField(changes.allow[1]).toArray();
 // ...
}
// ...

I am not sure why this would suddenly be an issue, especially because Discord sent those bitfield numbers.

5 Replies

d.js toolkit•13mo ago

- What's your exact discord.js npm list discord.js and node node -v version? - Not a discord.js issue? Check out #other-js-ts. - Consider reading #how-to-get-help to improve your question! - Explain what exactly your issue is. - Post the full error stack trace, not just the top part! - Show your code! - Issue solved? Press the button! - ✅ Marked as resolved by OP

Syjalo•13mo ago

Permissions bit field should be a string or a BigInt, not a number.

XgeOP•13mo ago

Oh yeah, it works if I make it a string:

`${changes.allow[1]}`

`${changes.allow[1]}`

Why does it say in the docs that it accepts a number as well though?

Syjalo•13mo ago

It depends on what the DefaultBit of the BitField is. For PermissionsBitField it's BigInt. And you'll lose some data if you'll use numbers for permissions since it's larger then the MAX_SAFE_NUMBER.

XgeOP•13mo ago

Alright, thank you very much

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Invalid bitfield in audit log channel permissions event