chore(backend): Aanpassingen Dwengo Learning-Object-Repository

Processing uit Dwengo Learning-Object-Repository geconverteerd naar TypeScript en aangepast aan onze app.

Functionaliteit van Dwengo Learning-Object-Repository in ons project gekopiëerd en deels aanBestanden die enkel types of interfaces exporteren hernoemd naar *.d.tsgepast aan TypeScript en ons project.

backend/src/routes/learning-objects.ts

@@ -1,6 +1,6 @@
 import express from 'express';
 import {
-    getAllLearningObjects,
+    getAllLearningObjects, getAttachment,
     getLearningObject, getLearningObjectHTML,
 } from '../controllers/learning-objects.js';
 
@@ -30,4 +30,10 @@ router.get('/:hruid', getLearningObject);
 // Example: http://localhost:3000/learningObject/un_ai7/html
 router.get('/:hruid/html', getLearningObjectHTML);
 
+// Parameter: hruid of learning object, name of attachment.
+// Query: language, version (optional).
+// Route to get the raw data of the attachment for one learning object based on its hruid.
+// Example: http://localhost:3000/learningObject/u_test/attachment/testimage.png
+router.get('/:hruid/html/:attachmentName', getAttachment);
+
 export default router;