Rails.application.routes.draw do
  # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
  get '/contacts/:id/edit', to: 'contacts#edit'
  get '/contacts', to: 'contacts#index', as: 'home'
  get '/contacts/new', ato: 'contacts#new', as: 'new'
  get '/contacts/:id', to: 'contacts#show', as: 'shows'
  post '/contacts', to: 'contacts#create'
end

    def edit
        @contact = Contact.find(params[:id])
    end

<%= form_for(@contact) do |c| %>
    <div>
        <%= c.label 'First Name' %>
        <%= c.text_field :fname %>
    </div>
    <div>
        <%= c.label 'Last Name' %>
        <%= c.text_field :lname %>
    </div>  
    <div>
        <%= c.label :number %>
        <%= c.text_field :number %>
    </div>  

    <div>
        <%= c.submit %>
    </div>
<% end %>

NoMethodError in Contacts#editShowing 

/Users/donovanneethling/Ruby/addressbook/app/views/contacts/edit.html.erbwhere line #1raised:

undefined method `contact_path' for #<#<Class:0x007fca54438cf0>:0x007fca57e82a78>
Did you mean?  contacts_path

get '/contacts/:id/edit', to: 'contacts#edit', as: 'contact'