Append query string to url

Question

I have a callback url string params[:callback] and I need to append a query string \"&result=true\" and redirect the user. The better way I found o

Answer 1

I wan't to bring update to this topic, because any of the solutions didn't work me.

The reason being, that it seems that callback.query_values returns Nil if the actual url doesn't have existing query values.

Therefore if you have urls such as: http://www.foo.com and http://www.foo.com?bar=1 you should use the following code:

url = "http://www.foo.com" # or params[:callback] obviously. :)

callback = Addressable::URI.parse(url)
callback.query_values = (callback.query_values || {}).merge({
  result: true
})

redirect_to callback.to_s

Cheers.