From 8f2a1acdb7768a1536a421f370e0ed6ba0b8945f Mon Sep 17 00:00:00 2001 From: Rahul Naskar Date: Fri, 25 Oct 2024 22:03:14 +0530 Subject: [PATCH 1/2] solved all the assignments of middlewares of week-4 --- week-4/middlewares/01-ratelimitter.js | 25 ++++++++++++++++++++ week-4/middlewares/01-requestcount.js | 5 ++++ week-4/middlewares/02-authmiddleware.js | 12 +++++++--- week-4/middlewares/02-logIncomingRequests.js | 8 ++++++- 4 files changed, 46 insertions(+), 4 deletions(-) diff --git a/week-4/middlewares/01-ratelimitter.js b/week-4/middlewares/01-ratelimitter.js index 867228a6..e7f6cb3f 100644 --- a/week-4/middlewares/01-ratelimitter.js +++ b/week-4/middlewares/01-ratelimitter.js @@ -16,11 +16,36 @@ setInterval(() => { numberOfRequestsForUser = {}; }, 1000) +app.use(function(req, res, next){ + const userId = req.headers['user-id']; + + if(!userId){ + res.status(400).send('id is required') + } + + + if(numberOfRequestsForUser[userId]){ + numberOfRequestsForUser[userId]++; + + } else{ + numberOfRequestsForUser[userId] = 1; + } + + + if(numberOfRequestsForUser[userId] > 5){ + res.status(404).send('you have reached 5 requests per second') + } + + next() +}) + app.get('/user', function(req, res) { + res.status(200).json({ name: 'john' }); }); app.post('/user', function(req, res) { + res.status(200).json({ msg: 'created dummy user' }); }); diff --git a/week-4/middlewares/01-requestcount.js b/week-4/middlewares/01-requestcount.js index 0a326486..fd8292ed 100644 --- a/week-4/middlewares/01-requestcount.js +++ b/week-4/middlewares/01-requestcount.js @@ -10,6 +10,11 @@ let requestCount = 0; // maintain a count of the number of requests made to the server in the global // requestCount variable +app.use(function(req, res, next){ + requestCount++; + next() +}) + app.get('/user', function(req, res) { res.status(200).json({ name: 'john' }); }); diff --git a/week-4/middlewares/02-authmiddleware.js b/week-4/middlewares/02-authmiddleware.js index 448a19a8..b7f4ef85 100644 --- a/week-4/middlewares/02-authmiddleware.js +++ b/week-4/middlewares/02-authmiddleware.js @@ -1,4 +1,3 @@ - // Implement an authentication middleware that checks for a valid API key in the request headers. const express = require('express'); @@ -9,6 +8,13 @@ const VALID_API_KEY = '100xdevs_cohort3_super_secret_valid_api_key'; // key is 1 // Middleware to check for a valid API key function authenticateAPIKey(req, res, next) { // authenticate APIKey here + const apiKey = req.headers['100xdevs-api-key'] + console.log(apiKey) + if(apiKey === VALID_API_KEY){ + next() + } else{ + res.status(401).json({message: 'Invalid or missing API key'}) + } } app.use(authenticateAPIKey); @@ -17,6 +23,6 @@ app.get('/', (req, res) => { res.status(200).json({ message: 'Access granted' }); }); -module.exports = app; - +// app.listen(3000) +module.exports = app; \ No newline at end of file diff --git a/week-4/middlewares/02-logIncomingRequests.js b/week-4/middlewares/02-logIncomingRequests.js index 647018b8..49cbc413 100644 --- a/week-4/middlewares/02-logIncomingRequests.js +++ b/week-4/middlewares/02-logIncomingRequests.js @@ -5,6 +5,10 @@ const app = express(); function logRequests(req, res, next) { // write the logic for request log here + + console.log(`${req.method} ${req.url} - ${new Date().toISOString()}`) + next() + } app.use(logRequests); @@ -13,4 +17,6 @@ app.get('/', (req, res) => { res.status(200).json({ message: 'Hello, world!' }); }); -module.exports = app; + +// app.listen(3000) +module.exports = app; \ No newline at end of file From d7ef068bec8ae56d2420e679125ab381a3cf0ffe Mon Sep 17 00:00:00 2001 From: Rahul Naskar Date: Sat, 2 Nov 2024 18:04:20 +0530 Subject: [PATCH 2/2] solution of hard problem of week-4...it includes database middleware and .env concepts...libraries express, zod (for checking the inputs), jsonwebtoken(for authentication), mongoose (which connects mongodb), bcrypt (for hashing and salting the given password) --- week-4/hard/database/index.js | 20 +- week-4/hard/index.js | 103 +++++- week-4/hard/middleware/user.js | 23 +- week-4/hard/package-lock.json | 558 ++++++++++++++++++++++++++++++++- week-4/hard/package.json | 4 +- 5 files changed, 692 insertions(+), 16 deletions(-) diff --git a/week-4/hard/database/index.js b/week-4/hard/database/index.js index bc4f9a47..e1339f66 100644 --- a/week-4/hard/database/index.js +++ b/week-4/hard/database/index.js @@ -1,16 +1,24 @@ const mongoose = require('mongoose'); +const dotenv = require('dotenv'); +dotenv.config(); // Connect to MongoDB -mongoose.connect('your-mongodb-url'); - -// Define schemas +mongoose.connect(process.env.MONGODB_URL) + .then(() => console.log("Connected to MongoDB")) + .catch((error) => console.error("MongoDB connection error:", error)); +// Defining user schemas const UserSchema = new mongoose.Schema({ - // Schema definition here + username: { type: String, required: true }, + email: { type: String, required: true, unique: true }, + password: { type: String, required: true } }); +// Defining todo schemas const TodoSchema = new mongoose.Schema({ - // Schema definition here + description: { type: String, required: true }, + complete: { type: Boolean, default: false }, + userid: { type: mongoose.Schema.ObjectId, ref: 'User' } }); const User = mongoose.model('User', UserSchema); @@ -19,4 +27,4 @@ const Todo = mongoose.model('Todo', TodoSchema); module.exports = { User, Todo -} \ No newline at end of file +}; diff --git a/week-4/hard/index.js b/week-4/hard/index.js index 9d2401cd..52205bec 100644 --- a/week-4/hard/index.js +++ b/week-4/hard/index.js @@ -1,15 +1,108 @@ const express = require("express"); const dotenv = require("dotenv"); dotenv.config(); - +const { z } = require('zod'); +const jwt = require('jsonwebtoken'); +const bcrypt = require('bcrypt'); const app = express(); -const port = process.env.PORT; +const { User, Todo } = require('./database/index'); +const auth = require('./middleware/user'); app.use(express.json()); -app.get("/healthy", (req, res)=> res.send("I am Healthy")); +app.get("/healthy", (req, res) => res.send("I am Healthy")); + +// POST endpoint to signup +app.post('/signup', async (req, res) => { + const requiredBody = z.object({ + username: z.string().min(3).max(32), + email: z.string().min(5).max(50).email(), + password: z.string().min(6).max(100).regex(/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[!@#$%&*-])[A-Za-z\d!@#$%&*-]{8,}$/) + }); + + const requiredDataBody = requiredBody.safeParse(req.body); + + if (!requiredDataBody.success) { + return res.status(403).json({ + msg: "Incorrect credential", + error: requiredDataBody.error + }); + } + + const { username, email, password } = req.body; + + const userExistOrNot = await User.findOne({ email }); + + if (userExistOrNot) { + return res.status(409).json({ + msg: `User already exists with this email: ${email}` + }); + } + + const hashPassword = await bcrypt.hash(password, 10); + + try { + await User.create({ username, email, password: hashPassword }); + res.status(201).json({ msg: "Account created successfully" }); + } catch (error) { + res.status(500).json({ msg: error.message }); + } +}); + +// POST endpoint to signin +app.post('/signin', async (req, res) => { + const { email, password } = req.body; + if (!email || !password) { + return res.status(403).json({ msg: "Please provide email and password" }); + } + + try { + const user = await User.findOne({ email }); + + if (!user) { + return res.status(404).json({ msg: `User does not exist with this email: ${email}` }); + } + + const passMatch = await bcrypt.compare(password, user.password); + if (passMatch) { + const token = jwt.sign({ id: user._id }, process.env.JWT_SECRET); + return res.status(200).json({ token }); + } else { + return res.status(403).json({ msg: "Password is incorrect" }); + } + } catch (error) { + res.status(500).json({ error: error.message }); + } +}); + +// POST endpoint to add todo +app.post('/todo', auth, async (req, res) => { + const { description, completed } = req.body; + const id = req.id; + + if (description === undefined || completed === undefined) { + return res.status(400).json({ msg: "Please provide description and completed" }); + } + + try { + await Todo.create({ description, complete: completed, userid: id }); + res.status(201).json({ msg: "Todo added successfully" }); + } catch (error) { + res.status(500).json({ error: error.message }); + } +}); -// start writing your routes here +// GET endpoint to get all todos +app.get('/todos', auth, async (req, res) => { + const id = req.id; -app.listen(port, ()=> console.log(`server is running at http://localhost:${port}`)); + try { + const userTodos = await Todo.find({ userid: id }); + res.status(200).json(userTodos); + } catch (error) { + res.status(500).json({ msg: error.message }); + } +}); +const PORT = process.env.PORT || 3000; +app.listen(PORT, () => console.log(`Server running on port ${PORT}`)); diff --git a/week-4/hard/middleware/user.js b/week-4/hard/middleware/user.js index cb63496a..97fc9bdb 100644 --- a/week-4/hard/middleware/user.js +++ b/week-4/hard/middleware/user.js @@ -1,5 +1,24 @@ +const jwt = require('jsonwebtoken'); +const dotenv = require('dotenv'); + +dotenv.config(); + function userMiddleware(req, res, next) { - // Implement user auth logic + const token = req.headers.token; + if (!token) { + return res.status(403).json({ + msg: "Access token is missing" + }); + } + try { + const verified = jwt.verify(token, process.env.JWT_SECRET); + req.id = verified.id; + next(); + } catch (error) { + res.status(401).json({ + error: "Invalid token" + }); + } } -module.exports = userMiddleware; \ No newline at end of file +module.exports = userMiddleware; diff --git a/week-4/hard/package-lock.json b/week-4/hard/package-lock.json index 2312a0a6..e4d2e493 100644 --- a/week-4/hard/package-lock.json +++ b/week-4/hard/package-lock.json @@ -9,11 +9,32 @@ "version": "1.0.0", "license": "ISC", "dependencies": { + "bcrypt": "^5.1.1", "cors": "^2.8.5", "dotenv": "^16.4.5", "express": "^4.19.2", "jsonwebtoken": "^9.0.2", - "mongoose": "^8.6.1" + "mongoose": "^8.6.1", + "zod": "^3.23.8" + } + }, + "node_modules/@mapbox/node-pre-gyp": { + "version": "1.0.11", + "resolved": "https://registry.npmjs.org/@mapbox/node-pre-gyp/-/node-pre-gyp-1.0.11.tgz", + "integrity": "sha512-Yhlar6v9WQgUp/He7BdgzOz8lqMQ8sU+jkCq7Wx8Myc5YFJLbEe7lgui/V7G1qB1DJykHSGwreceSaD60Y0PUQ==", + "dependencies": { + "detect-libc": "^2.0.0", + "https-proxy-agent": "^5.0.0", + "make-dir": "^3.1.0", + "node-fetch": "^2.6.7", + "nopt": "^5.0.0", + "npmlog": "^5.0.1", + "rimraf": "^3.0.2", + "semver": "^7.3.5", + "tar": "^6.1.11" + }, + "bin": { + "node-pre-gyp": "bin/node-pre-gyp" } }, "node_modules/@mongodb-js/saslprep": { @@ -40,6 +61,11 @@ "@types/webidl-conversions": "*" } }, + "node_modules/abbrev": { + "version": "1.1.1", + "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz", + "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==" + }, "node_modules/accepts": { "version": "1.3.8", "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz", @@ -53,12 +79,88 @@ "node": ">= 0.6" } }, + "node_modules/agent-base": { + "version": "6.0.2", + "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-6.0.2.tgz", + "integrity": "sha512-RZNwNclF7+MS/8bDg70amg32dyeZGZxiDuQmZxKLAlQjr3jGyLx+4Kkk58UO7D2QdgFIQCovuSuZESne6RG6XQ==", + "dependencies": { + "debug": "4" + }, + "engines": { + "node": ">= 6.0.0" + } + }, + "node_modules/agent-base/node_modules/debug": { + "version": "4.3.7", + "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.7.tgz", + "integrity": "sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==", + "dependencies": { + "ms": "^2.1.3" + }, + "engines": { + "node": ">=6.0" + }, + "peerDependenciesMeta": { + "supports-color": { + "optional": true + } + } + }, + "node_modules/agent-base/node_modules/ms": { + "version": "2.1.3", + "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz", + "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==" + }, + "node_modules/ansi-regex": { + "version": "5.0.1", + "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz", + "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==", + "engines": { + "node": ">=8" + } + }, + "node_modules/aproba": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/aproba/-/aproba-2.0.0.tgz", + "integrity": "sha512-lYe4Gx7QT+MKGbDsA+Z+he/Wtef0BiwDOlK/XkBrdfsh9J/jPPXbX0tE9x9cl27Tmu5gg3QUbUrQYa/y+KOHPQ==" + }, + "node_modules/are-we-there-yet": { + "version": "2.0.0", + "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-2.0.0.tgz", + "integrity": "sha512-Ci/qENmwHnsYo9xKIcUJN5LeDKdJ6R1Z1j9V/J5wyq8nh/mYPEpIKJbBZXtZjG04HiK7zV/p6Vs9952MrMeUIw==", + "deprecated": "This package is no longer supported.", + "dependencies": { + "delegates": "^1.0.0", + "readable-stream": "^3.6.0" + }, + "engines": { + "node": ">=10" + } + }, "node_modules/array-flatten": { "version": "1.1.1", "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz", "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==", "license": "MIT" }, + "node_modules/balanced-match": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz", + "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==" + }, + "node_modules/bcrypt": { + "version": "5.1.1", + "resolved": "https://registry.npmjs.org/bcrypt/-/bcrypt-5.1.1.tgz", + "integrity": 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"version": "2.0.0", + "resolved": "https://registry.npmjs.org/chownr/-/chownr-2.0.0.tgz", + "integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ==", + "engines": { + "node": ">=10" + } + }, + "node_modules/color-support": { + "version": "1.1.3", + "resolved": "https://registry.npmjs.org/color-support/-/color-support-1.1.3.tgz", + "integrity": "sha512-qiBjkpbMLO/HL68y+lh4q0/O1MZFj2RX6X/KmMa3+gJD3z+WwI1ZzDHysvqHGS3mP6mznPckpXmw1nI9cJjyRg==", + "bin": { + "color-support": "bin.js" + } + }, + "node_modules/concat-map": { + "version": "0.0.1", + "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz", + "integrity": "sha512-/Srv4dswyQNBfohGpz9o6Yb3Gz3SrUDqBH5rTuhGR7ahtlbYKnVxw2bCFMRljaA7EXHaXZ8wsHdodFvbkhKmqg==" + }, + "node_modules/console-control-strings": { + "version": "1.1.0", + "resolved": "https://registry.npmjs.org/console-control-strings/-/console-control-strings-1.1.0.tgz", + "integrity": 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"node": ">=8" + } + }, "node_modules/dotenv": { "version": "16.4.5", "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-16.4.5.tgz", @@ -247,6 +397,11 @@ "integrity": "sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==", "license": "MIT" }, + "node_modules/emoji-regex": { + "version": "8.0.0", + "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz", + "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==" + }, "node_modules/encodeurl": { "version": "1.0.2", "resolved": "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz", @@ -370,6 +525,33 @@ "node": ">= 0.6" } }, + "node_modules/fs-minipass": { + "version": "2.1.0", + "resolved": "https://registry.npmjs.org/fs-minipass/-/fs-minipass-2.1.0.tgz", + "integrity": "sha512-V/JgOLFCS+R6Vcq0slCuaeWEdNC3ouDlJMNIsacH2VtALiu9mV4LPrHc5cDl8k5aw6J8jwgWWpiTo5RYhmIzvg==", + "dependencies": { + "minipass": "^3.0.0" + 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"minizlib": "^2.1.1", + "mkdirp": "^1.0.3", + "yallist": "^4.0.0" + }, + "engines": { + "node": ">=10" + } + }, "node_modules/toidentifier": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.1.tgz", @@ -1107,6 +1630,11 @@ "node": ">= 0.8" } }, + "node_modules/util-deprecate": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz", + "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==" + }, "node_modules/utils-merge": { "version": "1.0.1", "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz", @@ -1146,6 +1674,32 @@ "engines": { "node": ">=16" } + }, + "node_modules/wide-align": { + "version": "1.1.5", + "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.5.tgz", + "integrity": "sha512-eDMORYaPNZ4sQIuuYPDHdQvf4gyCF9rEEV/yPxGfwPkRodwEgiMUUXTx/dex+Me0wxx53S+NgUHaP7y3MGlDmg==", + "dependencies": { + "string-width": "^1.0.2 || 2 || 3 || 4" + } + }, + "node_modules/wrappy": { + "version": "1.0.2", + "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz", + "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==" + }, + "node_modules/yallist": { + "version": "4.0.0", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz", + "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==" + }, + "node_modules/zod": { + "version": "3.23.8", + "resolved": "https://registry.npmjs.org/zod/-/zod-3.23.8.tgz", + "integrity": "sha512-XBx9AXhXktjUqnepgTiE5flcKIYWi/rme0Eaj+5Y0lftuGBq+jyRu/md4WnuxqgP1ubdpNCsYEYPxrzVHD8d6g==", + "funding": { + "url": "https://github.com/sponsors/colinhacks" + } } } } diff --git a/week-4/hard/package.json b/week-4/hard/package.json index 9fc8e40c..ce70a571 100644 --- a/week-4/hard/package.json +++ b/week-4/hard/package.json @@ -10,10 +10,12 @@ "license": "ISC", "description": "", "dependencies": { + "bcrypt": "^5.1.1", "cors": "^2.8.5", "dotenv": "^16.4.5", "express": "^4.19.2", "jsonwebtoken": "^9.0.2", - "mongoose": "^8.6.1" + "mongoose": "^8.6.1", + "zod": "^3.23.8" } }