bun-sqlite-session-store/index.js

A bun:sqlite session store to be used with express-session

import { Store } from 'express-session';
export class SQLiteStore extends Store {
    db;
    ttl;
    constructor(options = { db: null }) {
        super(options);
        this.ttl = options.ttl ?? 86400; // Default TTL: 1 day in seconds
        this.db = options.db;
        this.initializeDb();
    }
    initializeDb() {
        try {
            this.db.exec(`
        CREATE TABLE IF NOT EXISTS sessions (
          sid TEXT PRIMARY KEY,
          expires INTEGER,
          data TEXT,
          created_at INTEGER
        )
      `);
            this.db.exec('CREATE INDEX IF NOT EXISTS idx_sessions_expires ON sessions (expires)');
        }
        catch (err) {
            console.error('Failed to initialize SQLite session store:', err);
        }
    }
    get(sid, callback) {
        try {
            const row = this.db
                .prepare('SELECT * FROM sessions WHERE sid = ? AND expires > ?')
                .get(sid, Date.now());
            if (!row) {
                return callback(null, null);
            }
            const data = JSON.parse(row.data);
            return callback(null, data);
        }
        catch (err) {
            return callback(err);
        }
    }
    set(sid, session, callback) {
        try {
            const expires = typeof session.cookie.maxAge === 'number'
                ? Date.now() + session.cookie.maxAge
                : Date.now() + (this.ttl * 1000);
            const data = JSON.stringify(session);
            this.db
                .prepare(`INSERT OR REPLACE INTO sessions (sid, expires, data, created_at)
          VALUES (?, ?, ?, ?)`)
                .run(sid, expires, data, Date.now());
            callback();
        }
        catch (err) {
            callback(err);
        }
    }
    destroy(sid, callback) {
        try {
            this.db
                .prepare('DELETE FROM sessions WHERE sid = ?')
                .run(sid);
            callback();
        }
        catch (err) {
            callback(err);
        }
    }
    clear(callback) {
        try {
            this.db.exec('DELETE FROM sessions');
            callback();
        }
        catch (err) {
            callback(err);
        }
    }
    length(callback) {
        try {
            const row = this.db
                .prepare('SELECT COUNT(*) AS count FROM sessions')
                .get();
            callback(null, row ? row.count : 0);
        }
        catch (err) {
            callback(err);
        }
    }
    touch(sid, session, callback) {
        try {
            const expires = typeof session.cookie.maxAge === 'number'
                ? Date.now() + session.cookie.maxAge
                : Date.now() + (this.ttl * 1000);
            this.db
                .prepare('UPDATE sessions SET expires = ? WHERE sid = ?')
                .run(expires, sid);
            callback();
        }
        catch (err) {
            callback(err);
        }
    }
    prune() {
        try {
            this.db
                .prepare('DELETE FROM sessions WHERE expires < ?')
                .run(Date.now());
        }
        catch (err) {
            console.error('Failed to prune expired sessions:', err);
        }
    }
}
export default SQLiteStore;