wp-graphql.php

node-list-query.graphql

query NODE_LIST_QUERY($first: Int!, $after: String) {
  posts(first: $first, after: $after, where: { parent: null }) {
    nodes {
      acfFeaturedImage {
        fieldGroupName
        scoutFeaturedImageOverride {
          id
          sourceUrl
        }
        scoutFeaturedImageShow
        scoutFeaturedVideo
      }
      author {
        node {
          id
        }
      }
      authorDatabaseId
      authorId
      categories(first: 100) {
        nodes {
          id
        }
      }
      commentCount
      commentStatus
      content
      contentType {
        node {
          id
        }
      }
      databaseId
      date
      dateGmt
      desiredSlug
      enclosure
      excerpt
      featuredImage {
        node {
          id
          sourceUrl
        }
      }
      featuredImageDatabaseId
      featuredImageId
      guid
      id
      isRevision
      lastEditedBy {
        node {
          id
        }
      }
      link
      menu_order
      modified
      modifiedGmt
      pingStatus
      pinged
      postFormats(first: 100) {
        nodes {
          id
        }
      }
      slug
      status
      template {
        __typename
        ... on DefaultTemplate {
          templateName
        }
        ... on AboutTemplate {
          templateName
        }
        ... on BlogTemplate {
          templateName
        }
        ... on ConnectTemplate {
          templateName
        }
        ... on HomeTemplate {
          templateName
        }
        ... on LandingTemplate {
          templateName
        }
        ... on ServicesTemplate {
          templateName
        }
        ... on WorkTemplate {
          templateName
        }
      }
      terms(first: 100) {
        nodes {
          id
        }
      }
      title
      toPing
      uri
      __typename
    }
    pageInfo {
      hasNextPage
      endCursor
    }
  }
}

wp-graphql.php

<?php
        /**
         * Posts
         */
        $post_post_type_object = get_post_type_object('post');

        // Primary Category
        register_graphql_object_type('PrimaryCat', [
            'description' => "The post's primary category as defined by The SEO Framework.",
            'fields' => [
                'title' => [
                    'type' => 'String',
                    'description' => 'Category title',
                ],
                'uri' => [
                    'type' => 'String',
                    'description' => 'Category URI',
                ],
                'databaseId' => [
                    'type' => 'Integer',
                    'description' => 'Category database ID',
                ],
                'extra' => [
                    'type' => 'String',
                    'description' => 'For dev use only I suppose',
                ]
            ],
        ]);

        register_graphql_field($post_post_type_object->graphql_single_name, 'PrimaryCat', [
            'description' => "Get a post's primary category.",
            'type' => 'PrimaryCat',
            'resolve' => function ($post) {
                $primary_term = the_seo_framework()->get_primary_term($post->ID, 'category');

                if (! $primary_term) {
                    $terms = get_the_terms($post->ID, 'category');
                    $primary_term = $terms[0];
                }

                return [
                    'title' => $primary_term->name,
                    'uri' => str_replace(home_url(), '', get_term_link($primary_term)),
                    'databaseId' => $primary_term->term_id,
                    // 'extra' => json_encode($terms),
                ];
            },
        ]);