get footer links working and get rid of unnecessary json route

src/routes/+page.js

@@ -1,7 +1,6 @@
-export async function load({ fetch }) {
-    const resp = await fetch('/latest');
-    const postMeta = await resp.json();
-    const post = await import(`./_posts/${postMeta.slug}.svx`);
+export async function load({ data }) {
+    let post = await import(`./_posts/${data.slug}.svx`);
+    post.metadata.next = data.next;
     return {
         post: post.default,
     }

src/routes/+page.server.js

@@ -0,0 +1,11 @@
+import { postData, siblingPosts } from './_posts/all.js';
+
+
+// this is in a "servserside" loader so that we don't end up embedding the metadata
+// for every post into the final page
+export function load() {
+    return {
+        slug: postData[0].slug,
+        next: postData[1].slug,
+    };
+}

src/routes/[slug]/+page.js

@@ -1,14 +1,17 @@
 import { error } from '@sveltejs/kit';
 
 
-export async function load({ url, params }) {
+export async function load({ url, params, data }) {
     try {
         let post = await import(`../_posts/${params.slug}.svx`);
+        post.metadata.prev = data.prev;
+        post.metadata.next = data.next;
         return {
             post: post.default,
         }
     }
     catch (err) {
-        throw error(404, `Not found: ${url.pathname}`);
+        // throw error(404, `Not found: ${url.pathname}`);
+        throw err;
     }
 }

src/routes/[slug]/+page.server.js

@@ -0,0 +1,10 @@
+import { postData } from '../_posts/all.js';
+
+
+export function load({ params }) {
+    const i = postData.findIndex(p => p.slug === params.slug);
+    return {
+        prev: i > 0 ? postData[i - 1].slug : null,
+        next: i < postData.length - 1 ? postData[i + 1].slug : null,
+    };
+}

src/routes/_posts/all.js

@@ -1,3 +1,4 @@
+import { writable } from 'svelte/store';
 import { dev } from '$app/environment';
 const posts = import.meta.globEager('./*.svx');
 

src/routes/latest/+server.js

@@ -1,7 +0,0 @@
-import { json } from '@sveltejs/kit';
-import { postData } from '../_posts/all.js';
-
-
-export async function GET() {
-    return json(postData[0]);
-}