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Flask Blueprint Patterns

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by Community

Learn to structure large Flask applications using blueprints for modular code organization. Covers blueprint registration, URL prefixes, template and static file management, error handlers, and the application factory pattern.

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Flask Blueprint Patterns

A guide to organizing Flask applications with blueprints for modular, maintainable code structure.

Usage

Ask about Flask blueprints, application factory pattern, modular organization, or Flask architecture.

Examples

  • "Set up a Flask app with auth and API blueprints"
  • "How do I use the application factory pattern?"
  • "Share templates and static files across blueprints"

Guidelines

  • Use the application factory pattern for testability
  • Group related routes into blueprints by feature
  • Use url_prefix for blueprint route namespacing
  • Register error handlers on both blueprints and the app
  • Keep blueprint-specific templates in blueprint subdirectories

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