Error Handling and Interceptors
Implement custom exception filters for graceful error handling and use interceptors to transform responses or log requests.
Graceful API Error Handling
When building APIs, it's crucial to handle errors gracefully. Instead of crashing or returning vague messages, your API should provide clear, consistent feedback to clients.
This makes your API user-friendly and helps in debugging both client-side and server-side issues.
NestJS Built-in Exceptions
NestJS provides a set of standard HTTP exceptions, extending from HttpException. These exceptions map directly to common HTTP status codes.
BadRequestException(400)UnauthorizedException(401)NotFoundException(404)InternalServerErrorException(500)
Using these ensures your API speaks the standard HTTP language.
All lessons in this course
- Routes and Request Handling
- CRUD Operations with TypeORM
- Error Handling and Interceptors