README.md

Investable Properties

How to run

Please use the commands npm install to install all the dependencies and npm run start to run the server, which will be listening in port 3000.

Once the server is running, you can perform a GET operation from the browser or any other HTTP client: http://localhost:3000/getInvestableProperties/{top_level_region}

Example: http://localhost:3000/getInvestableProperties/london

Remarks

This solution has been developed using a hash map approach. The following logic has been implemented:

• It creates a tree with the top_level_region as root
• It starts to iterate between all the investable regions.
  • If the investable region is a child, then we add the investable region name and all it's children to the regions_to_find array.
  • If the investable region is a parent, then we add the top_level_region and all it's children to the regions_to_find array.
  • At any other case, we ignore it.
• Once the iteration ends, the regions_to_find array (once it's joined with comma as separator) it's used to call the getPropertiesByRegion method.
• Result is returned to client.