Add basic D1 support

functions/storage/[[storage]].js

@@ -0,0 +1,22 @@
+export async function onRequest(context) {
+  const db = context.env.D1DB;
+  if (context.params.storage[0] == "delete") {
+    const deleteReq = context.params.storage[1];
+    await db.prepare("DELETE FROM data WHERE k=?").bind(deleteReq).run();
+    return new Response();
+  }
+  const key = context.params.storage[0];
+  console.log(context);
+  if (context.request.method == "POST") {
+    const formData = await context.request.formData();
+    const value = formData.get("value");
+    console.log("Inserting", key, value);
+    // this doesn't use numbered parameters because miniflare behaves differently because better-sqlite3 doesn't handled numbered params well
+    // CF really needs named support and better-sqlite3 really needs to fix this
+    console.log(await db.prepare("INSERT INTO data (k, v) VALUES (?,?) ON CONFLICT(k) DO UPDATE SET v=? WHERE k=?").bind(key, value, value, key).run());
+    
+    return new Response();
+  }
+  const value = await db.prepare("SELECT v FROM data WHERE k=?").bind(key).first("v");
+  return new Response(JSON.stringify(value));
+}