Gate SDK Methods

async can(user: User, ability: string): Promise<boolean>

Checks if a decoded JWT user has a specific ability.

• Parameters:

  • user: The decoded JWT object representing the user.
  • ability: The specific permission to check (e.g., blog.articles.create).

• Returns: A boolean indicating whether the user has the specified ability.

async any(user: User, abilities: string[]): Promise<boolean>

Checks if the decoded JWT user has at least one of the specified abilities.

• Parameters:

  • user: The decoded JWT object.
  • abilities: Array of abilities to check.

• Returns: true if the user has any of the abilities, false otherwise.

async every(user: User, abilities: string[]): Promise<boolean>

Checks if the decoded JWT user has all of the specified abilities.

• Parameters:

  • user: The decoded JWT object.
  • abilities: Array of abilities to check.

• Returns: true if the user has all specified abilities, false otherwise.

async forUser(user: User): Promise<PermissionCollection>

Fetches all permissions for the decoded JWT user and returns them as a PermissionCollection object.

• Parameters:

  • user: The decoded JWT object.

• Returns: A PermissionCollection instance.

async share(user: User, permissions: string[], ttl: number)

Stores permissions for a decoded JWT user in Redis with a time-to-live (TTL).

• Parameters:

  • user: The decoded JWT object.
  • permissions: Array of permissions to store.
  • ttl: Expiry time for the permissions in seconds.

• Returns: The Gate instance for method chaining.

async authorize(user: User, permissions: string[], ttl: number)

Alias for share. Adds permissions for a decoded JWT user with a specified TTL.

async forget(user: User)

Deletes all cached permissions for the decoded JWT user from Redis.

• Parameters:

  • user: The decoded JWT object.

• Returns: The Gate instance for method chaining.

async refresh(user: User, permissions: string[])

Updates the permissions for a decoded JWT user, preserving existing TTLs for the cached data.

• Parameters:

  • user: The decoded JWT object.
  • permissions: New set of permissions to update.

• Returns: The Gate instance for method chaining.

async all(user: User): Promise<string[]>

Retrieves all permissions for a decoded JWT user from Redis as an array of strings.

• Parameters:

  • user: The decoded JWT object.

• Returns: Array of permissions associated with the user.

async isRevoked(user: User): Promise<boolean>

Checks if the decoded JWT user has no active permissions.

• Parameters:

  • user: The decoded JWT object.

• Returns: true if the user has no permissions, false otherwise.

debugUsing(debugUsing: Debugger)

Sets a custom debugger function for logging.

• Parameters:

  • debugUsing: The custom debug function to use.

• Returns: The Gate instance for method chaining.

Example Usage

Install the SDK:

npm i @del-internet/sdk-auth

Then:

import Gate from '@del-internet/sdk-auth';

const config = { host: 'localhost', port: 6379 };
const gate = new Gate(config);

async function checkUserPermissions() {
  const user = { id: 'user123', key: 'user:permissions:user123' }; // Decoded JWT object
  const permissions = ['blog.articles.create', 'blog.articles.update'];

  await gate.share(user, permissions, 3600); // Cache permissions for 1 hour

  const canCreate = await gate.can(user, 'blog.articles.create');
  console.log(`User can create: ${canCreate}`);
}

checkUserPermissions();

This documentation assumes the user parameter represents a decoded JWT object containing relevant details such as id and key.