getImage is returning undefined so my GatsbyImage component is not rendered.
File structure:
- src/pages/gallery.js
- src/images (has 12 photos named photo-01.jpg, photo-02.jpg, …)
I have the following code (gallery.js):
import React from "react"; import Layout from "../components/Layout"; import { useStaticQuery, graphql } from "gatsby"; import { GatsbyImage, getImage } from "gatsby-plugin-image"; const Gallery = () => { const { gallery } = useStaticQuery(graphql` query { gallery: allFile( filter: { extension: { eq: "jpg" } absolutePath: { regex: "/images/" } } ) { nodes { id childImageSharp { fluid(maxWidth: 500, maxHeight: 500) { ...GatsbyImageSharpFluid_tracedSVG } } } } } `); return ( <Layout> <div className="container py-5"> <div className="row"> <div className="col-12"> <h1 className="text-gastby mb-4">Gallery</h1> </div> </div> <div className="row"> {gallery.nodes.map((image) => ( <div className="col-lg-3 col-md-4 col-sm-6 mb-3" key={image.id}> <GatsbyImage image={getImage(image.childImageSharp.fluid)} alt="Gallery" /> </div> ))} </div> </div> </Layout> ); }; export default Gallery;
what can i have wrong?
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Answer
The problem is that you are mixing gatsby-image
(from Gatsby 1 to Gatsby 2) and gatsby-plugin-image
(from Gatsby 3 onwards). The first one is now deprecated.
This can be easily spotted when you query for fluid
or fixed
GraphQL nodes since they are created by gatsby-image
which uses Img
(from 'gatsby-image
‘) component, which accepts a fluid
or fixed
property.
On the other hand, gatsby-plugin-image
queries for gatsbyImageData
(not fluid
or fixed
) and the corresponding GatsbyImage
(from 'gatsby-plugin-image'
) component accepts an image
property.
In your case, you are querying a gatsby-image
structure applied in a gatsby-plugin-image
component, that’s why it is returning undefined
.
Check the migration guide but essentially you will need to replace (and remove) all references to gatsby-image
and install the required dependencies:
npm install gatsby-plugin-image gatsby-plugin-sharp gatsby-transformer-sharp
Add it to your gatsby-config.js
:
module.exports = { plugins: [ `gatsby-plugin-image`, `gatsby-plugin-sharp`, `gatsby-transformer-sharp`, ], }
And change your query to something like:
const Gallery = () => { const { gallery } = useStaticQuery(graphql` query { gallery: allFile( filter: { extension: { eq: "jpg" } absolutePath: { regex: "/images/" } } ) { nodes { id childImageSharp { gatsbyImageData(layout: FIXED) } } } } `); return ( <Layout> <div className="container py-5"> <div className="row"> <div className="col-12"> <h1 className="text-gastby mb-4">Gallery</h1> </div> </div> <div className="row"> {gallery.nodes.map((image) => ( <div className="col-lg-3 col-md-4 col-sm-6 mb-3" key={image.id}> <GatsbyImage image={getImage(image.childImageSharp)} alt="Gallery" /> </div> ))} </div> </div> </Layout> ); }; export default Gallery;
Double-check the query since the nodes and the structure may be different when applying gatsby-plugin-image
.
Note that getImage
is a helper function and you may not need it, consider using directly:
<GatsbyImage image={image.childImageSharp.gatsbyImageData} alt="Gallery" />