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Quick reference

Phoenix Routing Cheatsheet

A quick reference guide for Phoenix Router: HTTP verbs, resourceful routes, route helpers, nested resources, and scoped pipelines.

· Published

The Phoenix Router provides expressive routing for matching HTTP requests to controller actions and LiveViews through pipelines.

Inspecting Routes

# Print all defined routes and path helpers
mix phx.routes

Resource Routing (resources/4)

# Generates all standard RESTful actions
resources "/users", UserController

# Limit generated actions
resources "/posts", PostController, only: [:index, :show]
resources "/comments", CommentController, except: [:delete]

Generated RESTful Route Mapping

HTTP Verb Path Action Helper Function
GET /users :index Routes.user_path(conn, :index)
GET /users/new :new Routes.user_path(conn, :new)
POST /users :create Routes.user_path(conn, :create)
GET /users/:id :show Routes.user_path(conn, :show, id)
GET /users/:id/edit :edit Routes.user_path(conn, :edit, id)
PUT / PATCH /users/:id :update Routes.user_path(conn, :update, id)
DELETE /users/:id :delete Routes.user_path(conn, :delete, id)

Nested Resources

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

# Generates:
# Routes.user_post_path(conn, :index, user_id)
# Routes.user_post_path(conn, :show, user_id, post_id)

Scopes & Pipelines

pipeline :browser do
  plug :accepts, ["html"]
  plug :fetch_session
  plug :protect_from_forgery
end

pipeline :api do
  plug :accepts, ["json"]
end

scope "/api", MyAppWeb.Api, as: :api do
  pipe_through :api

  resources "/articles", ArticleController
end

References

Related topics