Spark Plus Packages

Spark Plus is a collection of 14 production-ready Dart packages for building robust backend applications. Each package works standalone or together as a complete ecosystem.

Core Utilities

Foundational packages for common backend needs.

• env — Type-safe environment variable loading from .env files
• errors — Structured exceptions with HTTP status codes
• kd_bcrypt — Pure Dart bcrypt hashing with timing-safe verification
• kd_totp — TOTP/HOTP two-factor authentication (RFC 6238/4226)
• user_agent — Browser, OS, device detection and bot identification

Feature Packages

Full-featured modules for authentication, file management, and user profiles.

• auth — Email/password + OAuth2 authentication with JWT tokens
• media — File uploads with S3, R2, and local storage backends
• users — User profile management with auth integration

Middleware

Composable Shelf middleware for security, logging, and session management.

• spark_logging — Structured logging with pluggable handlers
• spark_cors — CORS middleware with dynamic origin matching
• spark_csrf — CSRF token generation and validation
• spark_rate_limiter — Rate limiting by IP with path-specific rules
• spark_session — Cookie-based sessions with multiple store backends
• spark_security_headers — CSP, HSTS, and security headers middleware

Recommended Stacks

Authentication Stack

auth + users + spark_session + spark_csrf + spark_cors + spark_logging

API Server

errors + env + auth + spark_rate_limiter + spark_logging + spark_security_headers

File Sharing App

auth + users + media + spark_session + spark_logging

2FA Integration

auth + kd_totp + users + spark_session