Let's say I want to include 50 images in one article on a blog made on Gatsby. Images are fetched using GraphQL. I end up writing very repetitive queries for each of the 50 images, like so:
export const query = graphql`
query ArticleImageQuery {
coverImage: imageSharp(id: {regex: "/cover-image/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
artisan1: imageSharp(id: {regex: "/artisan1/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
artisan2: imageSharp(id: {regex: "/artisan2/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
artisan3: imageSharp(id: {regex: "/artisan3/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
johannystrom1: imageSharp(id: {regex: "/johan-nystrom1/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
johannystrom2: imageSharp(id: {regex: "/johan-nystrom2/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
johannystrom3: imageSharp(id: {regex: "/johan-nystrom3/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
johannystrom4: imageSharp(id: {regex: "/johan-nystrom4/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
fratello1: imageSharp(id: {regex: "/fratello/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
booksAntiques1: imageSharp(id: {regex: "/books-antiques1/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
booksAntiques2: imageSharp(id: {regex: "/books-antiques2/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
pastor1: imageSharp(id: {regex: "/pastor1/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
pastor2: imageSharp(id: {regex: "/pastor2/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
pastor3: imageSharp(id: {regex: "/pastor3/" }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
libertyOrDeath1: imageSharp(id: {regex: "/liberty-death1/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
libertyOrDeath2: imageSharp(id: {regex: "/liberty-death2/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
kaisla1: imageSharp(id: {regex: "/kaisla1/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
blockDylan1: imageSharp(id: {regex: "/block-dylan1/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
blockDylan2: imageSharp(id: {regex: "/block-dylan2/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
blockDylan3: imageSharp(id: {regex: "/block-dylan3/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
blockDylan4: imageSharp(id: {regex: "/block-dylan4/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
blockDylan5: imageSharp(id: {regex: "/block-dylan5/" }) {
sizes(maxWidth: 700, maxHeight: 525, cropFocus: CENTER) {
...GatsbyImageSharpSizes
}
},
/* The list goes on, you get the idea... */
}
`;
This goes heavily against the DRY (Don't Repeat Yourself) principle. I've tried to fiddle with fragments, but I being a noob GraphQL user I just can't figure out how can I reuse this repetitive code and write it just once, instead of 50 times?
Is there anything I can do to improve this?
Ideally, I'd love to have a code where I could write the repetitive part once and then reuse it for each image that I'm fetching. For example:
/* NOTE: FICTIONAL PSEUDOCODE */
const imageQuery = graphql`
query ImageQuery($path: String!) {
imageSharp(id: {regex: $path }) {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
},
}
`;
export const query = graphql`
query ArticleImageQuery {
coverImage: ImageQuery("/cover-image/"),
artisan1: ImageQuery("/artisan1/"),
artisan2: ImageQuery("/artisan2/"),
artisan3: ImageQuery("/artisan3/"),
johannystrom1: ImageQuery("/johan-nystrom1/"),'
/* ... AND SO ON */
}
`;
GraphQL Fragments do not have parameters. See this github issue for more info.
When I have a problem similar to yours I select all the images that I need with one query and then process them in the view. For example with such query :
export const query = graphql`
{
allFile(filter: {absolutePath: {regex: "/img/o-meni/im/"}}) {
edges {
node {
id
name
publicURL
childImageSharp {
sizes(maxWidth: 700, maxHeight: 525) {
...GatsbyImageSharpSizes
}
}
}
}
}
}
`
And then you can filter for the specific image like artisan1
or whichever in the React component. To display them all you can use code like this :
{
this.props.data.allFile.edges.map(({ node }) =>
<a href={node.publicURL} key={node.id}>
<Img sizes={node.childImageSharp.sizes} alt={node.name} title={node.name} />
</a>
)
}
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