Techniques

Learn advanced techniques and best practices for building robust, production-ready Dwex applications.

What You'll Learn

This section covers practical implementation patterns and advanced features you'll need for real-world applications.

Topics

Configuration - Manage application configuration across environments.

Validation - Validate request data with decorators and schemas.

Error Handling - Handle errors gracefully and provide meaningful responses.

Caching - Implement caching strategies for better performance.

Cookies - Work with HTTP cookies for session management.

CORS - Configure Cross-Origin Resource Sharing for your API.

File Upload - Handle file uploads with multipart/form-data.

Performance - Optimize your application for maximum performance.

Example: Validation

import { IsString, IsEmail, MinLength } from "class-validator";

export class CreateUserDto {
	@IsString()
	@MinLength(3)
	name: string;

	@IsEmail()
	email: string;
}

@Controller("users")
export class UserController {
	@Post()
	create(@Body() dto: CreateUserDto) {
		// dto is automatically validated
		return this.userService.create(dto);
	}
}