API security isn’t optional — it’s the foundation your entire application rests on. A single authentication vulnerability can expose user data, enable account takeovers, and destroy trust. Here’s how we secure Laravel APIs at Masterpiece Designs.
Authentication Methods
Token-Based with Laravel Sanctum
For most API applications, Sanctum provides lightweight, secure token authentication. It generates plaintext tokens for API access while supporting session-based authentication for SPAs. Tokens can be scoped with specific abilities, giving granular control over what each token can do.
OAuth 2.0 with Laravel Passport
For applications that need to act as an OAuth server — allowing third-party applications to authenticate against your API — Passport provides a full OAuth 2.0 implementation. It’s more complex than Sanctum but necessary when your API serves external developers.
Password Security
Never store passwords in plaintext. Laravel’s bcrypt hashing is the default and provides excellent security. Enforce minimum password complexity in your validation rules, but avoid overly restrictive policies that push users toward insecure workarounds.
Implement account lockout after repeated failed attempts. Laravel’s built-in rate limiter can throttle login endpoints, preventing brute-force attacks without custom code.
HTTPS Everywhere
Force HTTPS on all API endpoints. In Laravel, use the ForceScheme middleware or set APP_URL with HTTPS. API tokens transmitted over HTTP are visible to anyone monitoring the network. There are no exceptions to this rule.
Input Validation
Validate every input on every request. Laravel’s form request validation makes this clean and centralised. Never trust client data — validate types, lengths, formats, and ranges. Use prepared statements (Eloquent does this automatically) to prevent SQL injection.
Rate Limiting
Apply rate limits to all endpoints, with stricter limits on authentication and password reset routes. Laravel’s RateLimiter facade lets you define limits by route, user, or IP. A typical configuration might allow 60 requests per minute for authenticated users and 10 per minute for login attempts.
CORS Configuration
Configure CORS headers explicitly. Don’t use wildcard (*) origins in production. Specify exactly which domains can access your API. Laravel’s CORS middleware makes this a configuration change rather than a code change.
Middleware Security Stack
Layer your security middleware: authenticate, authorise, validate, then process. Each layer catches different types of invalid requests, ensuring that only properly authenticated, authorised, and validated requests reach your business logic.
Security Headers
Set security headers on all responses: X-Content-Type-Options: nosniff, X-Frame-Options: DENY, Strict-Transport-Security for HSTS, and appropriate Content-Security-Policy headers. Laravel packages like spatie/laravel-csp simplify this.
Logging and Monitoring
Log authentication events — successful logins, failed attempts, token creation, and revocation. Monitor for anomalies: unusual login locations, rapid token generation, or spikes in failed authentication. These patterns often indicate an attack in progress.
The Security Mindset
Security isn’t a feature you add at the end. It’s a practice woven into every line of code, every architectural decision, and every deployment. At Masterpiece Designs, security review is part of our development process, not an afterthought.