test_hal_gatsby/src/pages/index.js

import React from "react"

const IndexPage = ({data}) => {
  return (
    <div>
    <b>Titre : </b>
    {data.truc.title}
    <br></br>
    <b>Nombre de pages : </b>
    {data.truc.pages}
    <br></br>
    <b>Doc Id : </b>
    {data.truc.docid}
    </div>
  )}


export const query = graphql`
query MyQuery {
  truc {
    id
    title
    pages
    docid
  }
}
`


export default IndexPage