fragments.js

// Main.js
import withGraphQL from 'react-apollo-decorators/lib/withGraphQL'
import gql from 'graphql-tag'
import Content from './Content'

@withGraphQL(gql`query getMyData ($section: String) {
  dataForSection (section: $section) {
    ...${Content.fragmentName}
  }
}`, {
  fragments: [...Content.fragment]
})
export default class Main extends React.Component {

}

// Content.js
import React from 'react'
import withFragment from 'react-apollo-decorators/lib/withFragment'
import gql from 'graphql-tag'

@withFragment(gql`fragment dataContent on Data {
  title
  description
}`)
export default class Content extends React.Component {

}