In this chapter, you'll learn the basics of data in Gatsby. You'll add some
gatsby-config.js and use GraphiQL to explore Gatsby's data structure and build queries. You'll then learn about static queries and page queries and try them out yourself. Once we've got the basics of data down, we'll move on to Markdown and MDX in the next tutorial.
You can find the finished sample code for this chapter in
sample-code/gatsby-data. The assignments are in the readme in the