Struct UserStore 

pub struct UserStore { /* private fields */ }

Thread-safe, JSON-backed store for user accounts.

All mutations are persisted to disk immediately. Read operations use an in-memory cache protected by a RwLock so multiple readers can proceed concurrently.

Implementations

impl UserStore

pub fn new(storage_dir: PathBuf) -> Result<Self, HttpError>

Create a new user store backed by {storage_dir}/users.json.

Creates the directory and file if they do not exist.

pub fn get_by_username(&self, username: &str) -> Option<User>

Look up a user by username.

pub fn get_by_id(&self, user_id: Uuid) -> Option<User>

Look up a user by UUID.

pub fn create_user( &self, username: &str, password_hash: &str, email: Option<&str>, ) -> Result<User, HttpError>

Create a new user account.

Returns an error if the username is already taken.

pub fn update_user(&self, user: User) -> Result<(), HttpError>

Update an existing user record.

The updated_at timestamp is set to now automatically.

pub fn delete_user(&self, username: &str) -> Result<bool, HttpError>

Delete a user by username.

Returns true if the user existed and was removed.

pub fn list_usernames(&self) -> Vec<String>

List all usernames in the store.

pub fn count(&self) -> usize

Return the total number of users.

Trait Implementations

impl Debug for UserStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.