Ultimate fix and tested ! You can download contract now.

fresh.gen.ts

@@ -4,6 +4,7 @@
 
 import * as $_apps_layout from "./routes/(apps)/_layout.tsx";
 import * as $_apps_mobility_api_download from "./routes/(apps)/mobility/api/download.ts";
+import * as $_apps_mobility_api_download_id_ from "./routes/(apps)/mobility/api/download/[id].ts";
 import * as $_apps_mobility_api_insert_mobility from "./routes/(apps)/mobility/api/insert-mobility.ts";
 import * as $_apps_mobility_index from "./routes/(apps)/mobility/index.tsx";
 import * as $_apps_mobility_partials_admin_edit_mobility from "./routes/(apps)/mobility/partials/(admin)/edit_mobility.tsx";
@@ -41,6 +42,8 @@ const manifest = {
   routes: {
     "./routes/(apps)/_layout.tsx": $_apps_layout,
     "./routes/(apps)/mobility/api/download.ts": $_apps_mobility_api_download,
+    "./routes/(apps)/mobility/api/download/[id].ts":
+      $_apps_mobility_api_download_id_,
     "./routes/(apps)/mobility/api/insert-mobility.ts":
       $_apps_mobility_api_insert_mobility,
     "./routes/(apps)/mobility/index.tsx": $_apps_mobility_index,

routes/(apps)/mobility/api/download/[id].ts

@@ -0,0 +1,36 @@
+import { Handlers } from "$fresh/server.ts";
+import connect from "$root/databases/connect.ts";
+
+export const handler: Handlers = {
+  async GET(_request, ctx) {
+    try {
+      const { id } = ctx.params;
+
+      if (!id) {
+        return new Response("Invalid request: Missing ID", { status: 400 });
+      }
+
+      using connection = connect("mobility");
+
+      const query = connection.database.prepare(
+        "SELECT attestationFile FROM mobility WHERE id = ?",
+      );
+      const result = query.get(id);
+
+      if (!result || !result.attestationFile) {
+        return new Response("No file found for the given ID", { status: 404 });
+      }
+
+      return new Response(result.attestationFile, {
+        status: 200,
+        headers: {
+          "Content-Type": "application/pdf",
+          "Content-Disposition": `attachment; filename="attestation_${id}.pdf"`,
+        },
+      });
+    } catch (error) {
+      console.error("Error fetching file:", error);
+      return new Response("Failed to fetch file", { status: 500 });
+    }
+  },
+};