node-week2/nada

6_nodejs/week2/.gitignore

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+node_modules/

6_nodejs/week2/app.js

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+import express from 'express';
+import fs from 'fs';
+
+const app = express();
+const port = process.env.PORT || 3000;
+
+// Support parsing JSON requests
+app.use(express.json());
+
+app.get("/", (req, res) => {
+  res.send("This is a search engine");
+});
+
+app.listen(port, () => {
+  console.log(`Listening on port ${port}`);
+});
+
+// Load documents from documents.json
+let documents = [];
+fs.readFile('documents.json', 'utf8', (err, data) => {
+  if (err) {
+    console.error("Error reading documents:", err);
+    return;
+  }
+  documents = JSON.parse(data);
+});
+
+// GET /search
+app.get("/search", (req, res) => {
+  const query = req.query.q;
+  const fields = req.body.fields;
+
+  if (query && fields) {
+    res.status(400).send("Both query parameter and fields in body cannot be provided simultaneously.");
+  } else if (query) {
+    const matchedDocuments = documents.filter(doc => Object.values(doc).some(value => typeof value === 'string' && value.includes(query)));
+    res.json(matchedDocuments);
+  } else {
+    res.json(documents);
+  }
+});
+
+// GET /documents/:id
+app.get("/documents/:id", (req, res) => {
+    const id = parseInt(req.params.id);
+    const document = documents.find(doc => doc.id === id);
+    if (document) {
+      res.json(document);
+    } else {
+      res.status(404).send("Document not found");
+    }
+  });
+
+  // POST /search
+  app.post("/search", (req, res) => {
+    const query = req.query.q;
+    const fields = req.body.fields;
+
+    if (query && fields) {
+      res.status(400).send("Both query parameter and fields in body cannot be provided simultaneously.");
+    } else if (query) {
+      const matchedDocuments = documents.filter(doc => Object.values(doc).some(value => typeof value === 'string' && value.includes(query)));
+      res.json(matchedDocuments);
+    } else if (fields) {
+      const filteredDocuments = documents.filter(doc => {
+        for (const field in fields) {
+          if (doc[field] !== fields[field]) {
+            return false;
+          }
+        }
+        return true;
+      });
+      res.json(filteredDocuments);
+    } else {
+      res.json(documents);
+    }
+  });

6_nodejs/week2/documents.json

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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"
+    }
+]