git-week2/srushti

2_git/week2/vegies.txt

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+cauliflower
+cabbage
+potato
+carrot
+brocoli
+tomato
+coriender

6_nodejs/week1/avg.js

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+/* Using array destructuring method through spread syntax, the 3 commas will skip the first 3 elemnts (node, script path and operation) 
+from the command line. */
+
+const [, , , ...numbers] = process.argv;
+
+ if (numbers.length === 0 || numbers.some(isNaN)) {
+ console.error('Error: Please provide valid numbers as command line arguments.');
+ } else {
+ const average = numbers.reduce((acc, num) => acc + Number(num), 0) / numbers.length;
+ console.log('Average:', average);
+ }

6_nodejs/week1/package.json

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+{
+ "name": "week1",
+ "version": "1.0.0",
+ "description": "",
+ "main": "avg.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC"
+}

6_nodejs/week2/.gitignore

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+node_modules/

6_nodejs/week2/app.js

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+const express = require("express");
+const fs = require("fs");
+const app = express();
+const port = process.env.PORT || 3000;
+
+app.use(express.json());
+
+app.get("/search", (req, res) => {
+ const query = req.query.q;
+
+ if (!query) {
+ return res.status(400).json({ error: "No query provided" });
+ }
+
+ fs.readFile('./documents.json', 'utf8', (err, data) => {
+ if (err) {
+ console.error("Error reading JSON file:", err);
+ return res.status(500).json({ error: "Error reading JSON file" });
+ }
+
+ try {
+ const documents = JSON.parse(data);
+
+ const filteredDocuments = documents.filter((doc) => {
+ return Object.values(doc).some((value) =>
+ value && value.toString().toLowerCase().includes(query.toLowerCase())
+ );
+ });
+
+ res.json(filteredDocuments);
+ } catch (error) {
+ console.error("Error parsing JSON data:", error);
+ res.status(500).json({ error: "Error parsing JSON data" });
+ }
+ });
+});
+
+app.get("/documents/:id", (req, res) => {
+ const id = parseInt(req.params.id);
+
+ try {
+ const data = fs.readFileSync("./documents.json", "utf8");
+ const documents = JSON.parse(data);
+
+ const foundDocument = documents.find((doc) => doc.id === id);
+
+ if (foundDocument) {
+ res.json(foundDocument);
+ } else {
+ res.status(404).send("Error 404: Document not found");
+ }
+ } catch (error) {
+ console.error("Error reading JSON file:", error);
+ res.status(500).send("Error reading JSON file");
+ }
+});
+
+app.post("/search", (req, res) => {
+ const query = req.query.q;
+ const fields = req.body.fields;
+
+ if (query && fields) {
+ res.status(400).json({ error: '"query" and "fields" cannot be provided' });
+ return;
+ }
+
+ try {
+ const data = fs.readFileSync("./documents.json", "utf8");
+ const documents = JSON.parse(data);
+
+ let filteredDocuments = documents;
+
+ if (query) {
+ filteredDocuments = filteredDocuments.filter((doc) =>
+ Object.values(doc).some((value) => value.includes(query))
+ );
+ }
+
+ if (fields) {
+ filteredDocuments = filteredDocuments.filter((doc) =>
+ Object.entries(fields).every(
+ ([key, value]) => doc[key] && doc[key].toString() === value.toString()
+ )
+ );
+ }
+
+ res.json(filteredDocuments);
+ } catch (error) {
+ console.error("Error reading JSON file:", error);
+ res.status(500).json({ error: "Error reading JSON file" });
+ }
+});
+
+app.listen(port, () => {
+ console.log(`Listening on port ${port}`);
+});

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"
+ }
+]