Building Secure Production Applications
Securing web applications is a continuous process that should be integrated from the first line of code. A single vulnerability can expose database credentials or compromise user data. Here is the checklist we follow for security.
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1. Secure Authentication & Tokens
* HTTP-Only Cookies: Never store JSON Web Tokens (JWT) in local storage where they are vulnerable to Cross-Site Scripting (XSS). Keep them in secure, HTTP-only cookies.
* Token Expiry & Rotation: Set short expiry windows (e.g., 15 minutes) for access tokens, and implement secure refresh tokens.
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2. Guarding Against CSRF & Injection
* Input Sanitization: Avoid raw database queries that open pathways for SQL injection. Use ORMs with parameterized inputs.
* Content Security Policy (CSP): Declare strict CSP headers to control where scripts can be fetched and executed:
``http``
Content-Security-Policy: default-src 'self'; script-src 'self' https://apis.google.com;
* Rate Limiting: Implement API rate limiters using Redis to prevent brute force login attempts and DDoS attacks.
Following these practices ensures your enterprise systems are resilient and compliant with modern data protection regulations.