Done

app/application.rb

@@ -0,0 +1,22 @@
+class Application
+
+  def call(env)
+    resp = Rack::Response.new
+    req = Rack::Request.new(env)
+
+    if req.path.match(/items/)
+      item_searched = req.path.split("/items/").last #turn /items/Item_name into Item_name
+        if item = @@items.find{|items| items.name == item_searched}
+          resp.write "#{item.price}"
+        elsif 
+          resp.write "Item not found."
+          resp.status = 400
+        end 
+    else
+      resp.write "Item not found. Route not found."
+      resp.status = 404
+    end
+
+    resp.finish
+  end
+end