move api calls to private api server

books.js

@@ -0,0 +1,50 @@
+const express = require('express');
+const router = express.Router();
+const axios = require('axios');
+
+router.get('/', async (req, res) => {
+  const author = req.query.author;
+  const apiKey = process.env.API_KEY;
+  try {
+    const books = await fetchBooks(author, apiKey);
+    res.json(books);
+  } catch (error) {
+    console.error('There has been a problem with your fetch operation:', error);
+    res.status(500).json({ error: 'An error occurred while fetching books' });
+  }
+});
+
+router.get('/book', async (req, res) => {
+  const bookId = req.query.bookId;
+  const apiKey = process.env.API_KEY;
+  console.log(
+    `https://www.googleapis.com/books/v1/volumes/${bookId}?key=${apiKey}`,
+  );
+  try {
+    const response = await axios.get(
+      `https://www.googleapis.com/books/v1/volumes/${bookId}?key=${apiKey}`,
+    );
+    res.json(response.data);
+  } catch (error) {
+    console.error('There has been a problem with your fetch operation:', error);
+    res
+      .status(500)
+      .json({ error: 'An error occurred while fetching book details' });
+  }
+});
+
+function fetchBooks(author, apiKey) {
+  let request = `https://www.googleapis.com/books/v1/volumes?q=inauthor:${author}&key=${apiKey}&orderBy=newest&maxResults=40`;
+
+  return axios
+    .get(request)
+    .then((response) => response.data.items)
+    .catch((error) =>
+      console.error(
+        'There has been a problem with your fetch operation:',
+        error,
+      ),
+    );
+}
+
+module.exports = router;

package.json

@@ -10,8 +10,10 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
+    "axios": "^1.7.2",
     "cors": "^2.8.5",
     "dotenv": "^16.4.5",
-    "express": "^4.19.2"
+    "express": "^4.19.2",
+    "node-fetch": "^3.3.2"
   }
 }

server.js

@@ -1,6 +1,9 @@
 const express = require('express');
 const app = express();
 const dotenv = require('dotenv');
+const booksRouter = require('./books');
+const cors = require('cors');
+app.use(cors());
 dotenv.config();
 
 const isProduction = process.env.NODE_ENV === 'production';
@@ -25,10 +28,11 @@ app.get('/api/key', (req, res) => {
   res.json({ apiKey: API_KEY });
 });
 
+app.use('/api/books', booksRouter);
+
 if (isProduction) {
   const https = require('https');
   const fs = require('fs');
-  const cors = require('cors');
 
   app.use(
     cors({