Move endpoints into their own folder

src/endpoints/caption.js

@@ -0,0 +1,35 @@
+const TASK = 'image-to-text';
+
+/**
+ * @param {import("express").Express} app
+ * @param {any} jsonParser
+ */
+function registerEndpoints(app, jsonParser) {
+    app.post('/api/extra/caption', jsonParser, async (req, res) => {
+        try {
+            const { image } = req.body;
+
+            const module = await import('../transformers.mjs');
+            const rawImage = await module.default.getRawImage(image);
+
+            if (!rawImage) {
+                console.log('Failed to parse captioned image');
+                return res.sendStatus(400);
+            }
+
+            const pipe = await module.default.getPipeline(TASK);
+            const result = await pipe(rawImage);
+            const text = result[0].generated_text;
+            console.log('Image caption:', text);
+
+            return res.json({ caption: text });
+        } catch (error) {
+            console.error(error);
+            return res.sendStatus(500);
+        }
+    });
+}
+
+module.exports = {
+    registerEndpoints,
+};