Cookies not saved in rails 6

Question

I am using rails 6.0 in a new project and after that cookies are not set

 Include ActionDispatch::Cookies 
 Include ActionDispatch::Session::CookieStore 
  before_action :cookie_set
  def cookie_set
    cookies[:test] = {value: 'testset'}
  end

browser cookie is empty

and you call it via javascript? I am not sure, if browser updates displayed cookies (at least safari doesn't) if they are changed via AJAX, but if you reload the page, browser will show the cookies. — edariedl, Aug 27 '19 at 18:54
i'm call rails api in browser, GET request without js, through address bar. code updated in question — Виктор, Aug 27 '19 at 19:06
Cookies are a concept in the context of browsers. Enabling Rails' API mode removes the necessary `ActionDispatch::Cookies` and `ActionDispatch::Session::CookieStore` middlewares from the application. — spickermann, Aug 27 '19 at 19:48

score 5 · Accepted Answer · answered Aug 27 '19 at 19:49

When you use your Rails application on api mode some middlewares that are needed to make cookies work are not included by default. To enable them maintaining api mode, edit your config/application.rb by adding:

# Stuff you application needs
class Application < Rails::Application
  config.middleware.use ActionDispatch::Cookies
  config.middleware.use ActionDispatch::Session::CookieStore, key: '_namespace_key'
# Maybe more stuff...
end

Cookies not saved in rails 6

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