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paulmwatson/rails_route_redirect_everything_to_another_domain.rb

Last active October 26, 2018 14:15
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A Rails route.rb rule that will redirect any GET to another domain and maintain the path, query, and hash/fragment.
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rails_route_redirect_everything_to_another_domain.rb
Rails.application.routes.draw do
get '(*path)', to: redirect{|params, request| "#{ENV['DOMAIN_TO_REDIRECT_TO']}#{request.url.gsub(request.scheme, '').gsub('://', '').gsub(request.host + '/', '')}"}
end
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A nice improvement would be maintaining the original sub-domain but that means you also need a wild-card SSL certificate. Heroku, which this route.rb is hosted on for my purposes, doesn't allow wild-card custom domains over SSL.

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