RailsConf 2019 - New HotN+1ness -Hard lessons migrating from REST to GraphQL by Eric Allen

RailsConf 2019 - New HotN+1ness -Hard lessons migrating from REST to GraphQL by Eric Allen _______________________________________________________________________________________________ Cloud 66 - Pain Free Rails Deployments Cloud 66 for Rails acts like your in-house DevOps team to build, deploy and maintain your Rails applications on any cloud or server. Get $100 Cloud 66 Free Credits with the code: RailsConf-19 ($100 Cloud 66 Free Credits, for the new user only, valid till 31st December 2019) Link to the website: https://cloud66.com/rails?utm_source=-&utm_medium=-&utm_campaign=RailsConf19 Link to sign up: https://app.cloud66.com/users/sign_in?utm_source=-&utm_medium=-&utm_campaign=RailsConf19 _______________________________________________________________________________________________ Our desire to use new tools and learn new technologies backfires when we don't take the time to fully understand them. In 2018, we migrated from a REST API to GraphQL. Patterns were introduced, copied, pasted, and one day we woke up with queries taking 6s and page load times less than 10s. Customers were complaining. How did we get here? In this talk, we will discuss why we chose GraphQL, show practical examples of the mistakes we made in our implementation, and demonstrate how we eliminated all N+1 queries. I'll answer the question, "if I knew then what I know now... Would I stick with a REST API?"