Naming Conventions

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Files and Directories

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General Files

• Use lowercase and hyphen-separated names (kebab-case) for files and directories
  • ✅ user-profile.ts
  • ❌ UserProfile.ts
• Group related files in directories with descriptive plural names
  • ✅ components, services, utils
  • ❌ component, util

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Special Files

• Configuration files should follow framework conventions
  • ✅ next.config.mjs, tailwind.config.js
• Test files should mirror source files with .test or .spec suffix
  • ✅ user-service.test.ts for user-service.ts
• Database migration files should include timestamp and description
  • ✅ 20241017124431_add_documents_and_insights.sql

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Code Symbols

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Variables and Functions

• Use camelCase for variables and function names
  • ✅ fetchUserData, isLoading, handleSubmit
  • ❌ FetchUserData, is_loading
• Boolean variables should use is/has/should prefix
  • ✅ isVerifyEmailEnabled, hasPermission, shouldDisplay
• Async functions should use verb prefixes suggesting async
  • ✅ fetchData, createUser, updateProfile

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Classes and Types

• Use PascalCase for:
  • Classes: Config, Client, ResponseAPI
  • Interfaces: TSurveySummaryResponse, ApiConfig
  • Type aliases: TResponseData, TJsTrackProperties
• Prefix types with T and interfaces with I (when helpful)
  • ✅ TStats, TResponseData, IApiConfig
• Enum names should be PascalCase, values in UPPER_SNAKE_CASE
  Copy

  enum ProjectFeatureKeys {
    FREE = "free",
    STARTUP = "startup",
    SCALE = "scale"
  }
  

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Constants

• Use UPPER_SNAKE_CASE for constant values
  • ✅ API_TIMEOUT, MAX_RETRIES, CONTAINER_ID
• Use PascalCase for constant references/objects
  • ✅ ErrorCodes, Config

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Database Models

• Use PascalCase singular form for model names
  • ✅ Survey, Response, Document
• Use camelCase for field names
  • ✅ createdAt, environmentId, isSpam
• Use snake_case for database column names
  • ✅ created_at, updated_at

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Components

• Use PascalCase for React components and their files
  • ✅ SurveyCard.tsx, UserProfile.tsx
• Component-specific types should be prefixed with component name
  • ✅ SurveyCardProps, UserProfileData

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API and Endpoints

• Use kebab-case for API endpoints
  • ✅ /api/user-profile, /api/survey-responses
• Use camelCase for query parameters
  • ✅ /api/surveys?pageSize=10&sortOrder=desc

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Schema and Validation

• Prefix Zod schemas with Z
  • ✅ ZSurvey, ZDocument, ZInsight
• Use descriptive names for validation schemas
  • ✅ ZUpdateDocumentAction, ZGenerateDocumentObjectSchema

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Error Handling

• Suffix error classes with “Error”
  • ✅ ValidationError, DatabaseError, AuthenticationError
• Use descriptive names for error types
  • ✅ SURVEY_NOT_FOUND, INVALID_RESPONSE

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Best Practices

• Keep names descriptive but concise
• Be consistent within each context
• Follow existing patterns in the codebase
• Use full words instead of abbreviations unless widely accepted
  • ✅ configuration vs ❌ config (except in standard terms)
  • ✅ id, url (standard abbreviations are acceptable)