API Error Handling
Lectures 37 • 40 slides
Narration
Slide 1: Validation and Sanitization
mindmap
root((Introduction to Validation))
Validation
Format Check
Range Check
Required Check
Sanitization
Whitespace Removal
Normalization
Escaping
express-validator
Middleware
Chained Notation
Review of Last Time
- Characteristics and types of NoSQL databases
- Basic MongoDB operations (CRUD)
- Document-oriented database design
Today's Learning Content
- Importance of validation
- How to use express-validator
- Sanitization (input normalization)
- Creating custom validation rules
- Designing error messages
Learning Objectives
Be able to implement input validation for secure and robust web applications
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