Request Validation and Security
Implement input validation and secure your API routes against common vulnerabilities.
Why Validate & Secure Requests?
When building web applications, especially with API routes, you'll receive data from users. This data often comes from forms, client-side requests, or other external sources.
It's crucial to ensure this incoming data is valid and safe. Without proper validation and security measures, your application can be vulnerable to errors, data corruption, or even malicious attacks.
What is Input Validation?
Input validation is the process of ensuring that data provided by a user (or another system) meets specific criteria before your application processes it. This involves checking:
- Data Type: Is it a string, number, boolean?
- Format: Does an email address look like an email? Is a date in the correct format?
- Length: Is a username between 3 and 20 characters?
- Range: Is an age a positive number?
- Content: Does it contain only allowed characters?
All lessons in this course
- Building API Route Handlers
- Request Validation and Security
- Integrating External Services
- Rate Limiting and API Error Handling