• Category Management App
  • How to run
  • Commands explain
    • ADD command
    • DELETE command
    • RENAME command
    • MOVE command
  • Further work needs to be done

This is a simple node.js Category Management App, you can

• add category
• delete category
• rename category
• reorder category at its level

1. Make sure you have nodejs installed.
2. Prepare a command file, see example.txt for example
3. Run node index.js to start program

You can add a Child Category by using

ADD '{Parent Category}' '{Child Category}'

Please make sure the Parent Category must exist; and the category name needs to be less than 63 unicode characters, cannot start with a number, must start with a capital and cannot end with a non-alphanumeric character.

You can delete a Child Category by using

DELETE '{Parent Category}' '{Child Category}'

Please make sure the Parent Category and Child Category must exist; and the Child Category needs to have no child category

You can rename a Child Category by using

RENAME '{Parent Category}' '{Child Category}' AS '{NewName Child Category}'

Please make sure the Parent Category and Child Category must exist; and the new category name also need to follow the same naming standard as ADD command; and AS command must present in front of the new category name

You can reorder a Child Category by using

MOVE '{Parent Category}' '{Child Category}' UP '{count}'
MOVE '{Parent Category}' '{Child Category}' DOWN '{count}'

it will update the order of Child Category at its level Please make sure the Parent Category and Child Category must exist; and UP or DOWN command must present in front of count

Due to time reason, there're several optimizations could not be made at the current version, the code could be improved by doing:

• Extract common (validation) logic in processing arguments
• Extract common logic in category service
• category.view needs to be refactored to enable accepting the max depth of categories for formatting the data