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README.md

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README

Set up the application

  • Configure env variables for database.
  • bundle install
  • Run task rake warehouse:load_data to load the sample data.
  • Run Rails server.

Test the application

  • Use tools like Postman to send a request.
  • Use rZvDngfZIHPrU8yZLpcb as the test X-AUTH-TOKEN as header. (This is created in seeder.rb)
  • Go to homepage to check products and orders status.

A few things about this sample app

  • If no orderIds is sent, an error will be returned.
  • Auth header is required to visit the API as I think this is an internal service.
  • When product stock is below the threshold, create purchase order method will just return true and update the stock. (For easier testing)
  • Order process method will roll back the whole transaction if any orderItem fails. This is an edge case when the system is used by multiple connections.
  • If orderIds contains a fulfilled order, it will also be returned in the API response, but the order status will not be flagged "Error: Unfulfillable".