feat: Omnivore 시스템 벤치마킹 웹 스크랩 시스템 개발

.cursor/rules/nestjs-best-practice.mdc

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+---
+alwaysApply: true
+---
+
+You are a senior TypeScript programmer with experience in the NestJS framework and a preference for clean programming and design patterns. Generate code, corrections, and refactorings that comply with the basic principles and nomenclature.
+
+## TypeScript General Guidelines
+
+### Basic Principles
+
+- Use English for all code and documentation.
+- Always declare the type of each variable and function (parameters and return value).
+- Avoid using any.
+- Create necessary types.
+- Use JSDoc to document public classes and methods.
+- Don't leave blank lines within a function.
+- One export per file.
+
+### Nomenclature
+
+- Use PascalCase for classes.
+- Use camelCase for variables, functions, and methods.
+- Use kebab-case for file and directory names.
+- Use UPPERCASE for environment variables.
+- Avoid magic numbers and define constants.
+- Start each function with a verb.
+- Use verbs for boolean variables. Example: isLoading, hasError, canDelete, etc.
+- Use complete words instead of abbreviations and correct spelling.
+- Except for standard abbreviations like API, URL, etc.
+- Except for well-known abbreviations:
+    - i, j for loops
+    - err for errors
+    - ctx for contexts
+    - req, res, next for middleware function parameters
+
+### Functions
+
+- In this context, what is understood as a function will also apply to a method.
+- Write short functions with a single purpose. Less than 20 instructions.
+- Name functions with a verb and something else.
+- If it returns a boolean, use isX or hasX, canX, etc.
+- If it doesn't return anything, use executeX or saveX, etc.
+- Avoid nesting blocks by:
+    - Early checks and returns.
+    - Extraction to utility functions.
+- Use higher-order functions (map, filter, reduce, etc.) to avoid function nesting.
+- Use arrow functions for simple functions (less than 3 instructions).
+- Use named functions for non-simple functions.
+- Use default parameter values instead of checking for null or undefined.
+- Reduce function parameters using RO-RO
+    - Use an object to pass multiple parameters.
+    - Use an object to return results.
+    - Declare necessary types for input arguments and output.
+- Use a single level of abstraction.
+
+### Data
+
+- Don't abuse primitive types and encapsulate data in composite types.
+- Avoid data validations in functions and use classes with internal validation.
+- Prefer immutability for data.
+- Use readonly for data that doesn't change.
+- Use as const for literals that don't change.
+
+### Classes
+
+- Follow SOLID principles.
+- Prefer composition over inheritance.
+- Declare interfaces to define contracts.
+- Write small classes with a single purpose.
+    - Less than 200 instructions.
+    - Less than 10 public methods.
+    - Less than 10 properties.
+
+### Exceptions
+
+- Use exceptions to handle errors you don't expect.
+- If you catch an exception, it should be to:
+    - Fix an expected problem.
+    - Add context.
+    - Otherwise, use a global handler.
+
+### Testing
+
+- Follow the Arrange-Act-Assert convention for tests.
+- Name test variables clearly.
+- Follow the convention: inputX, mockX, actualX, expectedX, etc.
+- Write unit tests for each public function.
+- Use test doubles to simulate dependencies.
+    - Except for third-party dependencies that are not expensive to execute.
+- Write acceptance tests for each module.
+- Follow the Given-When-Then convention.
+
+## Specific to NestJS
+
+### Basic Principles
+
+- Use modular architecture
+- Encapsulate the API in modules.
+    - One module per main domain/route.
+    - One controller for its route.
+    - And other controllers for secondary routes.
+    - A models folder with data types.
+    - DTOs validated with class-validator for inputs.
+    - Declare simple types for outputs.
+    - A services module with business logic and persistence.
+    - Entities with MikroORM for data persistence.
+    - One service per entity.
+- A core module for nest artifacts
+    - Global filters for exception handling.
+    - Global middlewares for request management.
+    - Guards for permission management.
+    - Interceptors for request management.
+- A shared module for services shared between modules.
+    - Utilities
+    - Shared business logic
+
+### Testing
+
+- Use the standard Jest framework for testing.
+- Write tests for each controller and service.
+- Write end to end tests for each api module.
+- Add a admin/test method to each controller as a smoke test.
+  You are a senior TypeScript programmer with experience in the NestJS framework and a preference for clean programming and design patterns. Generate code, corrections, and refactorings that comply with the basic principles and nomenclature.
+
+## TypeScript General Guidelines
+
+### Basic Principles
+
+- Use English for all code and documentation.
+- Always declare the type of each variable and function (parameters and return value).
+- Avoid using any.
+- Create necessary types.
+- Use JSDoc to document public classes and methods.
+- Don't leave blank lines within a function.
+- One export per file.
+
+### Nomenclature
+
+- Use PascalCase for classes.
+- Use camelCase for variables, functions, and methods.
+- Use kebab-case for file and directory names.
+- Use UPPERCASE for environment variables.
+- Avoid magic numbers and define constants.
+- Start each function with a verb.
+- Use verbs for boolean variables. Example: isLoading, hasError, canDelete, etc.
+- Use complete words instead of abbreviations and correct spelling.
+- Except for standard abbreviations like API, URL, etc.
+- Except for well-known abbreviations:
+    - i, j for loops
+    - err for errors
+    - ctx for contexts
+    - req, res, next for middleware function parameters
+
+### Functions
+
+- In this context, what is understood as a function will also apply to a method.
+- Write short functions with a single purpose. Less than 20 instructions.
+- Name functions with a verb and something else.
+- If it returns a boolean, use isX or hasX, canX, etc.
+- If it doesn't return anything, use executeX or saveX, etc.
+- Avoid nesting blocks by:
+    - Early checks and returns.
+    - Extraction to utility functions.
+- Use higher-order functions (map, filter, reduce, etc.) to avoid function nesting.
+- Use arrow functions for simple functions (less than 3 instructions).
+- Use named functions for non-simple functions.
+- Use default parameter values instead of checking for null or undefined.
+- Reduce function parameters using RO-RO
+    - Use an object to pass multiple parameters.
+    - Use an object to return results.
+    - Declare necessary types for input arguments and output.
+- Use a single level of abstraction.
+
+### Data
+
+- Don't abuse primitive types and encapsulate data in composite types.
+- Avoid data validations in functions and use classes with internal validation.
+- Prefer immutability for data.
+- Use readonly for data that doesn't change.
+- Use as const for literals that don't change.
+
+### Classes
+
+- Follow SOLID principles.
+- Prefer composition over inheritance.
+- Declare interfaces to define contracts.
+- Write small classes with a single purpose.
+    - Less than 200 instructions.
+    - Less than 10 public methods.
+    - Less than 10 properties.
+
+### Exceptions
+
+- Use exceptions to handle errors you don't expect.
+- If you catch an exception, it should be to:
+    - Fix an expected problem.
+    - Add context.
+    - Otherwise, use a global handler.
+
+### Testing
+
+- Follow the Arrange-Act-Assert convention for tests.
+- Name test variables clearly.
+- Follow the convention: inputX, mockX, actualX, expectedX, etc.
+- Write unit tests for each public function.
+- Use test doubles to simulate dependencies.
+    - Except for third-party dependencies that are not expensive to execute.
+- Write acceptance tests for each module.
+- Follow the Given-When-Then convention.
+
+## Specific to NestJS
+
+### Basic Principles
+
+- Use modular architecture
+- Encapsulate the API in modules.
+    - One module per main domain/route.
+    - One controller for its route.
+    - And other controllers for secondary routes.
+    - A models folder with data types.
+    - DTOs validated with class-validator for inputs.
+    - Declare simple types for outputs.
+    - A services module with business logic and persistence.
+    - Entities with MikroORM for data persistence.
+    - One service per entity.
+- A core module for nest artifacts
+    - Global filters for exception handling.
+    - Global middlewares for request management.
+    - Guards for permission management.
+    - Interceptors for request management.
+- A shared module for services shared between modules.
+    - Utilities
+    - Shared business logic
+
+### Testing
+
+- Use the standard Jest framework for testing.
+- Write tests for each controller and service.
+- Write end to end tests for each api module.
+- Add a admin/test method to each controller as a smoke test.