Fix

packages/example-next/src/post.ts

@@ -0,0 +1,15 @@
+import { Effect } from "effect"
+
+
+export interface Post {
+    readonly title: string
+    readonly body: string
+}
+
+export const fetchPost = (id: number) => Effect.tryPromise({
+    try: () =>
+        fetch(`https://jsonplaceholder.typicode.com/posts/${id}`)
+            .then(response => response.json() as Promise<Post>),
+
+    catch: () => new Error("Unable to fetch post"),
+})