Use Express router for caption endpoint

server.js

@@ -3621,7 +3621,7 @@ require('./src/endpoints/translate').registerEndpoints(app, jsonParser);
 require('./src/endpoints/classify').registerEndpoints(app, jsonParser);
 
 // Image captioning
-require('./src/endpoints/caption').registerEndpoints(app, jsonParser);
+app.use('/api/extra/caption', require('./src/endpoints/caption').router);
 
 // Web search extension
 require('./src/endpoints/serpapi').registerEndpoints(app, jsonParser);

src/endpoints/caption.js

@@ -1,35 +1,32 @@
+const express = require('express');
+const { jsonParser } = require('../express-common');
+
 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 router = express.Router();
 
-            const module = await import('../transformers.mjs');
-            const rawImage = await module.default.getRawImage(image);
+router.post('/', jsonParser, async (req, res) => {
+    try {
+        const { image } = req.body;
 
-            if (!rawImage) {
-                console.log('Failed to parse captioned image');
-                return res.sendStatus(400);
-            }
+        const module = await import('../transformers.mjs');
+        const rawImage = await module.default.getRawImage(image);
 
-            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);
+        if (!rawImage) {
+            console.log('Failed to parse captioned image');
+            return res.sendStatus(400);
         }
-    });
-}
 
-module.exports = {
-    registerEndpoints,
-};
+        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 = { router };