Add back-end

main.js

@@ -0,0 +1,55 @@
+import express from "express";
+import * as cheerio from "cheerio";
+
+const app = express();
+const PORT = 3000;
+
+app.use(express.static("public"));
+
+app.listen(PORT, () => {
+    console.log(`Server launched on http://localhost:${PORT}`);
+});
+
+app.get("/api/getImagesURL", async (req, res) => {
+    try {
+        const { q, offset = 0, count = 100 } = req.query;
+
+        if (!q) {
+            return res.status(400).send("Missing 'q' parameter");
+        }
+
+        let imagesUrls = [];
+        do {
+            const url = `https://www.bing.com/images/async?q=${encodeURIComponent(q)}&offset=${offset}&count=30`;
+            const response = await fetch(url);
+            const html = await response.text();
+
+            const urls = extractImageUrls(html);
+            for (const url of urls) {
+                imagesUrls.push(url);
+            }
+        } while (imagesUrls.length < count);
+
+        imagesUrls = imagesUrls.slice(0, count);
+
+        res.send(imagesUrls);
+    } catch (error) {
+        console.error(error);
+    }
+});
+
+function extractImageUrls(html) {
+    const document = cheerio.load(html);
+    const urls = [];
+    const imagesTags = document("a.iusc").toArray();
+
+    for (const tag of imagesTags) {
+        const metadataString = document(tag).attr("m");
+        const imageData = JSON.parse(metadataString);
+        let url = new URL(imageData.murl);
+        url = url.origin + url.pathname;
+        urls.push(url);
+    }
+
+    return urls;
+}