A Tasty Treats Podcast for Web Developers.

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Wes Bos

Wes Bos

XL5G3 Full Stack JavaScript Developer. Creator of really good web development courses. BBQ enthusiast.

Scott Tolinski

Scott Tolinski

Web Developer, NX2V1, Creator of Level Up Tuts, Bboy, Robotops Crew and Youtuber

Playing: 339: Hasty Treat - What is the n+1 problem?



Mar 29th, 2021

Hasty Treat - What is the n+1 problem?

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In this Hasty Treat, Scott and Wes talk about a common problem you'll encounter in your development career — the n+1 problem.

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Show Notes

05:00 - What is the n+1 problem?

  • The N+1 problem can happen in any language but is especially prevalent in GraphQL because it's so easy to query relationships.

09:33 - The solution

  • The solution to the n+1 problem is to batch the queries. As you loop over each podcast, keep an array of host IDs to lookup. Once you have looped over the podcasts, make a single query to the database with your large array of podcast host Ids.

11:11 - Should you care?

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