@bloomlabs/permission-calculator

A utility package to manage Discord permission flags using bitwise operations, built for ease of use and flexibility with TypeScript.

Features

• Define and manage permission flags using bigint values.
• Add, remove, and check permissions with an intuitive API.
• Support for resolving permissions by their names or bigint values.
• Retrieve a list of permission names from a combined permission value.

Installation

Install the package:

npm install @bloomlabs/permission-calculator

yarn add @bloomlabs/permission-calculator

pnpm add @bloomlabs/permission-calculator

bun add @bloomlabs/permission-calculator

Usage

Importing the Package

import {
  PermissionFlags,
  PermissionCalculator,
} from "@bloomlabs/permission-calculator";

Creating a Permission Calculator

// Initialize a PermissionCalculator with default permissions (none)
const permissions = new PermissionCalculator();

// Add permission to SEND_MESSAGES and MANAGE_CHANNELS
permissions.add(["SEND_MESSAGES", "MANAGE_CHANNELS"]);

// Check if a permission is present
console.log(permissions.has("SEND_MESSAGES")); // true

// Remove a permission
permissions.remove("SEND_MESSAGES");

// Get the combined permission value
console.log(permissions.value); // Permission value as bigint

// Get the list of permissions enabled
console.log(permissions.getPermissionsList()); // ['MANAGE_CHANNELS']

Adding and Removing Permissions

// Add a single permission
permissions.add("BAN_MEMBERS");

// Add multiple permissions
permissions.add(["VIEW_AUDIT_LOG", "KICK_MEMBERS"]);

// Remove a permission
permissions.remove("BAN_MEMBERS");

Checking Permissions

if (permissions.has("ADMINISTRATOR")) {
  console.log("User has administrator permissions");
}

Static Methods

• PermissionCalculator.getPermissionsFromValue(value): Get the list of permission names from a combined permission value.
• PermissionCalculator.parsePermissions(value): Parse a permission or an array of permissions into a combined bigint value.

const permissionsList = PermissionCalculator.getPermissionsFromValue(
  permissions.value
);
console.log(permissionsList); // Output: ['VIEW_AUDIT_LOG', 'KICK_MEMBERS']

API Reference

PermissionFlags

A constant object containing all available permission flags. Each flag is a bigint value.

PermissionCalculator

A class to manage permissions using bitwise operations.

Methods

• add(permission: PermissionFlagResolvable): this: Adds one or more permissions.
• remove(permission: PermissionFlagResolvable): this: Removes one or more permissions.
• has(permission: PermissionFlagResolvable): boolean: Checks if one or more permissions are included.
• get value(): bigint: Returns the combined permissions as a bigint.
• getPermissionsList(): string[]: Returns a list of permission names included in the current permissions.
• static getPermissionsFromValue(value: bigint | string | number | undefined | null): string[]: Returns a list of permission names from a combined permission value.
• static parse(value: bigint | string | number | undefined | null): bigint: Parses a value into a bigint.
• static parsePermissions(value: PermissionFlagResolvable): bigint: Parses a permission or array of permissions into a bigint.

License

This package is licensed under the MIT License. See LICENSE for more details.

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Enjoy using the @bloomlabs/permission-calculator package! Feedback is welcome!