Grape duplicates each key in the params hash with both symbol and string version fo the key

[ajsharp]

Here is the offending code on line 30 in grape/endpoint.rb:

    # The parameters passed into the request as
    # well as parsed from URL segments.
    def params
      @params ||= request.params.merge(env['rack.routing_args'] || {}).inject({}) do |h,(k,v)|
        h[k.to_s] = v
        h[k.to_sym] = v
        h
      end
    end

You can get access to the unmodified version of the params through the request object, but I think most people expect the params method to return the params hash in unmodified.

This behavior causes problems for recreating a hash signature if you don't know to use request.params.

I would rather see a wrapper around the params hash as a means to provide HashWithIndifferentAccess-like functionality rather than modifying the params hash itself.

[ajsharp]

If you're open to this idea, I'd be willing to write a patch and submit a pull request.

[aq1018]

Maybe using Hashie? (also created by intridea)

[mbleigh]

If someone writes a patch of this to use Hashie instead, I'd pull it.

[sporkd]

I also just banged head on wall a few hours before discovering that the symbol version only symbolizes the top level keys. So nested attributes are still strings on both hashes. So beware when doing something like params[:user][:name] or use the string version instead.

[mbleigh]

Yeah, this definitely should be Hashie-fied. I may not have time to get to it right away but I'd like to see it happen.