Learn Phoenix routing fundamentals including resourceful routes, nested resources, scopes, and pipelines.

Viewing and managing routes

• Find all routes in router.ex or by running mix phx.routes
• Use terminal tools (grep) to filter routes by resource (e.g., products)

Resourceful routing

• Use resources "/products", ProductController to auto-generate all CRUD endpoints (GET, POST, PUT/PATCH, DELETE)
• Limit routes with only: [:index, :show] or exclude with except: [:delete]

Nested resources

• Supports nesting (e.g., blog posts under users):

  resources "/users", UserController do
    resources "/posts", PostController
  end

Scopes

• Organize routes by path prefix (e.g., /api, /dashboard) and run different pipelines
• Example:
  • UI routes under /
  • API routes under /api
  • Admin/dashboard under /dashboard

Pipelines

• Collections of plugs (middleware) that run in order, e.g., the :browser pipeline for standard web pages, or custom ones like :auth for authentication
• Attach one or several pipelines to scopes (e.g., pipe_through [:browser, :auth])

Tips

• You can halt request processing in a plug (e.g., for security/redirects)
• Prefer explicit, readable route definitions—only use resources if you need most CRUD routes

Summary

This lesson covers Phoenix router basics, resourceful/nested routes, scopes, and pipelines for organizing endpoint behavior and authentication.