NestJS Unleashed
  • Introduction
    • Prerequisites
    • Necessary tools
    • Upgrading packages (ncu)
      • NestJS v9 -> v10
      • NestJS v10 -> v11
    • UPDATES
      • 1.1
      • 1.2
  • Core module - Backend Development with NestJS
    • Project creation
    • Basic configuration
    • User entity
    • Validation
      • Basic validation
      • More specific validation
      • Validation pipe options
      • Id validation
      • Options dedicated file
    • Database creation with Docker
    • TypeORM Integration
      • Database connection
      • Entity mapping
      • Migrations
      • Repository pattern
    • Pagination
    • DTO Limitations
    • Decorator composition
    • Configuration
      • Environment variables
      • Availability and validation
      • Using the variables
      • Configuration namespace and partial registration
      • Reducing boilerplate
      • Further improvements
        • Env vars in main file
        • Generating database url in codebase
    • Remaining domain
      • Entities
        • Order
        • Payment
        • Category
        • Product
        • Order Item
      • Logic
        • Category
        • Product
        • Entity validation
          • Nested validation
          • Function overload
        • Order
        • Exposing get fields
        • Payment
    • Seeding
  • Closing
  • Improvements/Tips module
    • Improvements
      • Soft delete
        • Fix - Boolean casting
        • Soft delete
        • Recover
      • Password validation
        • Regex pattern
        • Custom validator
        • Multiple validations
    • Tips
      • CORS
      • Helmet
      • UUID
  • Extra module 1 - Authentication/Authorization
    • Password hashing
      • Basic solution
      • Abstract service
      • Event listener
    • Excluding password
    • Authentication
      • Local strategy
      • Request user decorator
      • Request user interface
      • Validation middleware
      • JWT strategy
      • Public routes
    • Authorization
      • Role
      • Insert admin migration
      • Assign role route
      • Storing role in request user
      • Requiring permissions
      • Forbid empty arrays
      • More authorization checks
    • Rate limiting
    • Fix - Recover route
  • Extra module 2 - Exception Filters
    • NotFound exception filter
      • Filter basic structure
      • Error structure
      • Extracting message data
      • Response setup
    • Database exception filter
      • Basic setup
      • Creating error data
      • Last steps
  • Extra module 3 - OpenAPI Specification
    • Base document
    • Swagger CLI plugin
    • Swagger mapped types
    • Detecting optional fields
    • File name suffixes
    • Comments introspection
    • Api decorators
    • Enabling authentication
    • Discovery service
    • Limitation - Innacurate response schema
  • Extra module 4 - File Management
    • Basic file route
    • File validation
      • Validating size and extensions
      • Factory function for file validators
      • Fix - Converting file types to media types
      • Accepting file array
      • Validating file signature
    • File logic
      • Storage service
      • More util methods
      • Product-related logic
        • Controller routes
        • Service logic
        • Fetching products with filenames
      • Serve static
    • More features
      • Files exception filter
      • Documenting files routes
      • Tip - Extract body from multipart formdata
  • Extra module 5 - Advanced Querying
    • Pagination
      • Find and count
      • Querying structure
      • Metadata field
      • Documenting paginated responses
    • Filtering and sorting
      • DTO Orchestration
      • Everything at once
      • Encapsulating text filter
      • Filter operators
  • Extra module 6 - Automated Testing
    • Jest configuration
    • Simple resource
    • Unit tests
      • Some theory & First test
      • Mocks
      • Remaining service tests
      • Controller tests
    • e2e tests
      • Better test readability
      • Simulated environment
      • Testing entire flows
  • Parallel module - Prisma
    • Integration with Prisma/Docker
    • User model
    • User logic
    • Error Handling
    • Remaining domain
      • Models
        • Order
        • Payment
        • Category
        • Product
        • Order Item
      • Logic
        • Category
        • Product
        • Order
        • Payment
    • Seeding
    • Tip - Serialization
  • Further Improvements
    • More validations
    • Sending emails
    • Health checks
    • Cron jobs
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  1. Core module - Backend Development with NestJS
  2. Configuration

Further improvements

Just some more improvements for the configuration section.

Here, we'll just perform two more improvements, they are:

  • Use an environment variable for the app port in the main file, through the ConfigService

  • Generate the database URL inside the codebase, instead of directly in the .env file

PreviousReducing boilerplateNextEnv vars in main file

Last updated 1 month ago