Backend challenge for Hatchways

• An /api/posts route that handles the following query parameters:
  • tags (mandatory) : any number of comma-separated strings
  • sortBy (optional) : one of “id”, “reads”, “likes”, “popularity” defaults to "id"
  • direction (optional) : one of “asc”, “desc”, defaults to “asc"
• Error handling:
  • Return an error message if:
    • Tags parameter is missing
    • sortBy or direction has an invalid value
• Tests written in Jest
• API caching

    npm install
    npm run dev --- for dev env
    npm run start --- for prod env
    npm run test --- for testing