Using a Plugin in Your Site
Gatsby plugins are Node.js packages, so you can install them like other packages in node using NPM.
gatsby-transformer-json is a package that adds support for JSON files to the Gatsby data layer.
To install it, in the root of your site you run:
Then in your site’s
gatsby-config.js you add
gatsby-transformer-json to the plugins array like:
Plugins can take options. For example:
Note that plugin options will be stringified by Gatsby, so they cannot be functions.