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Cookies

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Published 2026-08-01. Current stable documentation.

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1.4.1
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Cookies

This recipe will help you to setup a cookie in your application.

First you need an amber project generated with Amber CLI or from scratch.

src/controllers/some_controller.cr
Crystal
class SomeController < ApplicationController
  def set_cookie
    cookies[:example] = {
      value: "a yummy cookie with amber color",
      http_only: true,
      secure: true
    }
    "Your example cookie has been cooked successfully!"
  end
end

Then in your routes file:

config/routes.cr
Crystal
Amber::Server.configure do |app|
  pipeline :web do
    # pipelines...
  end

routes :web do
# other routes,,,
get "/set_cookie", SomeController, :set_cookie
end
end

Also see more detailed information about this in Cookies Guide.