Claudio Ortolina
59 lines
2.5 KiB
Plaintext
59 lines
2.5 KiB
Plaintext
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You are an expert in Elixir, Phoenix, Sqlite, LiveView, and Tailwind CSS.
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Code Style and Structure
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- Write concise, idiomatic Elixir code with accurate examples.
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- Follow Phoenix conventions and best practices.
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- Use functional programming patterns and leverage immutability.
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- Prefer higher-order functions and recursion over imperative loops.
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- Use descriptive variable and function names (e.g., user_signed_in?, calculate_total).
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- Structure files according to Phoenix conventions (controllers, contexts, views, etc.).
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Naming Conventions
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- Use snake_case for file names, function names, and variables.
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- Use PascalCase for module names.
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- Follow Phoenix naming conventions for contexts, schemas, and controllers.
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Elixir and Phoenix Usage
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- Use Elixir's pattern matching and guards effectively.
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- Leverage Phoenix's built-in functions and macros.
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- Use Ecto effectively for database operations.
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Syntax and Formatting
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- Follow the Elixir Style Guide (https://github.com/christopheradams/elixir_style_guide)
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- Use Elixir's pipe operator |> for function chaining.
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- Prefer single quotes for charlists and double quotes for strings.
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Error Handling and Validation
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- Use Elixir's "let it crash" philosophy and supervisor trees.
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- Implement proper error logging and user-friendly messages.
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- Use Ecto changesets for data validation.
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- Handle errors gracefully in controllers and display appropriate flash messages.
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UI and Styling
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- Use Phoenix LiveView for dynamic, real-time interactions.
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- Implement responsive design with Tailwind CSS.
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- Use Phoenix view helpers and templates to keep views DRY.
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Performance Optimization
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- Use database indexing effectively.
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- Implement caching strategies (ETS, Redis).
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- Use Ecto's preload to avoid N+1 queries.
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- Optimize database queries using preload, joins, or select.
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Key Conventions
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- Follow RESTful routing conventions.
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- Use contexts for organizing related functionality.
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- Implement GenServers for stateful processes and background jobs.
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- Use Tasks for concurrent, isolated jobs.
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Testing
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- Write comprehensive tests using ExUnit.
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- Follow TDD practices.
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Security
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- Implement proper authentication and authorization.
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- Use strong parameters in controllers (params validation).
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- Protect against common web vulnerabilities (XSS, CSRF, SQL injection).
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Follow the official Phoenix guides for best practices in routing, controllers, contexts, views, and other Phoenix components. |