Nodejs week2/parisa

nodejs/week2/app.js

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+import express from 'express'
+import { searchRouter } from "./search.js"
+const app = express();
+const port = process.env.PORT || 3000;
+
+// Support parsing JSON requests
+app.use(express.json());
+app.use("/search", searchRouter);
+app.get("/", (req, res) => {
+  res.send("This is a search engine");
+});
+
+app.listen(port, () => {
+  console.log(`Listening on port ${port}`);
+});

nodejs/week2/documents.js

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+[
+    {
+        "id": 1,
+        "name": "Used Apple Airpods",
+        "price": "50",
+        "description": "Battery life is not great"
+    },
+    {
+        "id": 2,
+        "type": "doc",
+        "value": "hello world"
+    }
+]

nodejs/week2/search.js

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+import express from "express";
+import documents from "./documents.json" with { type: 'json' };
+
+export const searchRouter = express.Router();
+
+// GET: Fetch all documents or filter by query
+searchRouter.get("/", (req, res) => {
+    const query = req.query.q;
+
+    if (!query) {
+         res.status(200).json(documents);
+         return
+    }
+
+    const filteredResults = documents.filter(item =>
+        item.value?.toLowerCase().includes(query.toLowerCase())
+    );
+
+    res.status(200).json(filteredResults);
+});
+
+// GET: Fetch a document by ID
+searchRouter.get('/:id', (req, res) => {
+    const id = Number(req.params.id);
+    const document = documents.find(item => item.id === id);
+
+    if (!document) {
+        res.status(404).json({ message: "Not Found. Check your ID and try again." });
+        return 
+    }
+
+    res.status(200).json(document);
+});
+
+// POST: Filter documents based on provided fields
+searchRouter.post("/", (req, res) => {
+    const { fields } = req.body;
+
+    if (!fields || typeof fields !== "object") {
+        res.status(400).json({ message: "Invalid request body. Expected an object with fields." });
+        return
+    }
+
+    const filteredDocuments = documents.filter(item => {
+         Object.entries(fields).every(([key, value]) => item[key] === value);
+         return
+    });
+
+    res.status(200).json(filteredDocuments);
+});