get '/dogs' do
  # get a listing of all the dogs
end

get '/dog/:id' do
  # just get one dog, you might find him like this:
  @dog = Dog.get(params[:id])
  # using the params convention, you specified in your route
end

post '/dog' do
  # create a new dog listing
end

put '/dog/:id' do
  # HTTP PUT request method to update an existing dog
end

delete '/dog/:id' do
  # HTTP DELETE request method to remove a dog who's been sold!
end