Prevention of N + 1 Requests
Learn how to prevent the application from generating N+1 queries.
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Include user
Imagine that we want to add the owners of the products for the path /products. We have already seen that it is straightforward to do this with the fast_jsonapi library. We will modify the code in app/controllers/api/v1/products_controller.rb:
ruby-2.6.3
Test the code using Rails test
Now, let’s request with cURL. Remember that we must obtain an authentication token before accessing the page. Click on the “Run” button to open a terminal. Then open another terminal by clicking the “” button next to the “Terminal” tab. Initialize the rails server on the new terminal using this command:
$ cd usercode/workspace/market_place_api && rails s
Switch back to the first terminal and run:
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