The article explores the evolving process of web development, focusing on optimizing data fetching through Gatsby, a PWA generator that employs GraphQL to pull data at build time for improved performance. Traditional methods like the fetch API and Axios handle data at runtime, which can increase load times, whereas Gatsby's approach of integrating static content at build time offers advantages in efficiency. The article delves into Gatsby's three methods for creating routes, particularly emphasizing the use of the createPages API both with and without GraphQL. Using GraphQL within Gatsby allows for more descriptive data queries, reducing the need for manual updates and enhancing the development experience. However, the discussion also highlights potential drawbacks, such as performance issues and memory constraints when querying all fields in gatsby-node.js, and the impact on incremental builds. The article concludes by emphasizing the benefits of Gatsby's use of GraphQL in creating a seamless user experience while also suggesting monitoring tools like LogRocket for managing GraphQL requests in production.