Gatsby build on Netlify failing with the objects must have internal.contentDigest

[viddyoze]

Hi. I have a Gatsby/Wordpress site running on Netlify and the build will fail unless I manually run the build and clear cache option. This is the error I'm receiving

error the objects must have internal.contentDigest. Current object:
{
  "objectID": "cG9zdDozNDc=",
  "uri": "/post-name/",
  "title": "Post Name",
  "excerpt": "This is a post..."
}

I'm not sure what to try, any help is appreciated

[3200pro]

@viddyoze I'm having the same problem with a Gatsby site running on Gatsby Cloud with Sanity.io content. I'll reach out through my Gatsby Cloud account and hopefully get a quick answer from them.

[aidanm1999]

@3200pro Check out my answer below if you are using graphql with your Sanity CMS. If you are using groq, I would request the document's id and pass that into the transformer:

export const transformer = (items) => items.map((item) => ({
    objectID: post.id,
    [...],
    internal: {
        contentDigest: post.id,
    }
});

Note: I haven't tested this myself so may still have the issue

[aidanm1999]

Hi @viddyoze,

I believe the issue is related to gatsby-plugin-algolia during the transformer phase of the build. To fix you should add in internal { contentDigest } to your query, e.g.:

allWpPost {
    nodes {
        id,
        [...],
        internal { contentDigest }
    }
}

and then during the transformer function, when formatting your array, you should add the internal object in:

export const transformer = (data) => data?.allWpPost?.nodes.map((post) => ({
    objectID: post.id,
    [...],
    internal: post.internal,
});

That should sort your builds out. NB if you are not using the transformer function, you should be able to just add internal { contentDigest } to your graphql query and that should fix the issue.