1 files changed, 97 insertions, 0 deletions
diff --git a/src/services/graphql/fetchers/topics/fetch-topic.ts b/src/services/graphql/fetchers/topics/fetch-topic.ts
new file mode 100644
index 0000000..efc1d9e
--- /dev/null
+++ b/src/services/graphql/fetchers/topics/fetch-topic.ts
@@ -0,0 +1,97 @@
+import type { Nullable, WPTopic } from '../../../../types';
+import { fetchGraphQL, getGraphQLUrl } from '../../../../utils/helpers';
+
+type TopicResponse = {
+  topic: Nullable<WPTopic>;
+};
+
+const topicQuery = `query Topic($slug: ID!) {
+  topic(id: $slug, idType: SLUG) {
+    acfTopics {
+      officialWebsite
+      postsInTopic {
+        ... on Post {
+          acfPosts {
+            postsInThematic {
+              ... on Thematic {
+                databaseId
+                slug
+                title
+              }
+            }
+          }
+          author {
+            node {
+              name
+            }
+          }
+          commentCount
+          contentParts {
+            beforeMore
+          }
+          databaseId
+          date
+          featuredImage {
+            node {
+              altText
+              mediaDetails {
+                height
+                width
+              }
+              sourceUrl
+              title
+            }
+          }
+          info {
+            wordsCount
+          }
+          modified
+          slug
+          title
+        }
+      }
+    }
+    contentParts {
+      afterMore
+      beforeMore
+    }
+    featuredImage {
+      node {
+        altText
+        mediaDetails {
+          height
+          width
+        }
+        sourceUrl
+        title
+      }
+    }
+    seo {
+      metaDesc
+      title
+    }
+    slug
+    title
+  }
+}`;
+
+/**
+ * Retrieve a WordPress topic by slug.
+ *
+ * @param {string} slug - The topic slug.
+ * @returns {Promise<WPTopic>} The requested topic.
+ */
+export const fetchTopic = async (slug: string): Promise<WPTopic> => {
+  const response = await fetchGraphQL<TopicResponse>({
+    query: topicQuery,
+    url: getGraphQLUrl(),
+    variables: { slug },
+  });
+
+  if (!response.topic)
+    return Promise.reject(
+      new Error(`No topic found for the following slug ${slug}.`)
+    );
+
+  return response.topic;
+};