diff --git a/server.rb b/server.rb
index 7ae75d1..ce69777 100755
--- a/server.rb
+++ b/server.rb
@@ -307,4 +307,26 @@ post '/part' do
     delete = @db.prepare("DELETE FROM inventory WHERE part = ?")
     delete.execute(part["id"])
   end
+  # update properties
+  field = "properties"
+  part[field] = nil if part[field] and 0 == part[field].length
+  delete = @db.prepare("DELETE FROM property_value WHERE part = ?")
+  delete.execute(part["id"])
+  if part[field] then
+    part[field].each do |name,values|
+      next if values.empty?
+      statement = @db.prepare("SELECT id FROM property WHERE LOWER(name) = ?")
+      ref = statement.execute(name.downcase).to_a[0]
+      unless ref then
+        insert = @db.prepare("INSERT INTO property (name) VALUES (?)");
+        insert.execute(name)
+      end
+      ref = statement.execute(name.downcase).to_a[0]
+      insert = @db.prepare("INSERT INTO property_value (property,part,value) VALUES (?,?,?)");
+      values.each do |value|
+        insert.execute(ref["id"], part["id"], value)
+      end
+    end
+  end
+  return 200
 end