Rails: manipulate URL query param keys before request hits controller -

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i need pass params in url 3rd-party service user#new.

due strong parameters controller expecting params in form user[name], user[email]. however, 3rd-party service blocking use of square brackets in param key.

what's easiest rails-y way work around this? perhaps in rails router? i'd take email=abc@example.com , convert user[email]=abc@example.com before request gets rejected controller.

thoughts?

thanks!

i think simple, manual solution best.

def user_params   permitted_params = [:name, :email, :first_name, :last_name]   params[:user].reverse_merge!(params.keep_if { |k,v| k.to_sym.in? permitted_params })   params.require(:user).permit(*permitted_params) end

if params[:user] nil, can either this: params[:user] ||= {} somewhere before merge.

or this: params[:user] = (params[:user] || {}).reverse_merge(params.keep_if { |k,v| k.to_sym.in? permitted_params }


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