Add a List of Posts to a Gatsby Blog with a GraphQL Page Query
In this lesson, you’ll use GraphQL to query for transformed Markdown blog posts and display links to each of them on the blog’s homepage.
Peter
~ 6 years ago
Is anybody else getting a strange error from GrahpQl?
Invariant Violation: GraphQLCompilerContext: Duplicate document named `HomepageQuery`. GraphQL fragments and roots must have unique names.
t: Duplicate document named `HomepageQuery`. GraphQL fragments and roots must have unique names.```James Maclean
~ 5 years ago
- Why use a 'Page query' instead of a 'Static' one?
- It looks like a query exported in my index.js is available on other pages. Why does this happen?
Lauro Silva
~ 4 years ago
Hey James, good question. It seems that StaticQuery can do most of the things that page query can, including fragments. The main differences are:
- page queries can accept variables (via
pageContext) but can only be added to page components. - StaticQuery does not accept variables (hence the name “static”), but can be used in any component, including pages.
As of Gatsby v2, StaticQuery seems to be the default choice. So I would suggest just using StaticQuery. Link to the documentation.