Export to csv with respond_to returns errors on rails 5

Question

With Rails version 5.2.rc1

if I use

respond_to do |format|
  format.csv { render(csv: "test") }
end

results

ActionController::UnknownFormat

What is the best way to export to csv in rails 5?

Answer 1

Please look into the Railscast's screencast. If you followed everything properly and still you're getting the error, then try something like this in your routes:

match '/yourPathTo.csv' => 'controller#action', via: :get, defaults: { format: :csv }