From e12484925d5de48633a2c8a2d370d6b771d216a7 Mon Sep 17 00:00:00 2001 From: nitin_singh Date: Wed, 11 Sep 2024 18:01:05 +0530 Subject: [PATCH] done course-app-easy --- week-3/02-course-app-easy/.gitignore | 1 + week-3/02-course-app-easy/index.js | 98 ++- week-3/02-course-app-easy/package-lock.json | 836 ++++++++++++++++++++ week-3/02-course-app-easy/package.json | 5 +- 4 files changed, 921 insertions(+), 19 deletions(-) create mode 100644 week-3/02-course-app-easy/.gitignore create mode 100644 week-3/02-course-app-easy/package-lock.json diff --git a/week-3/02-course-app-easy/.gitignore b/week-3/02-course-app-easy/.gitignore new file mode 100644 index 000000000..b512c09d4 --- /dev/null +++ b/week-3/02-course-app-easy/.gitignore @@ -0,0 +1 @@ +node_modules \ No newline at end of file diff --git a/week-3/02-course-app-easy/index.js b/week-3/02-course-app-easy/index.js index 32fff61e9..9fc9c6943 100644 --- a/week-3/02-course-app-easy/index.js +++ b/week-3/02-course-app-easy/index.js @@ -7,46 +7,108 @@ let ADMINS = []; let USERS = []; let COURSES = []; +const adminAuthentication = (req,res,next)=>{ + //check if admin exist in admin array if yes call next + const admin = req.headers; + const validAdmin = ADMINS.find(a=>a.username===admin.username + &&a.password === admin.password ); + if(validAdmin){ + next(); + }else{ + res.status(403).json({message:'Admin authentication failed'}) + } +} +const userAuthentication = (req,res,next)=>{ + //check if admin exist in admin array if yes call next + const user = req.headers; + const validUser = USERS.find(u=>u.username===user.username + &&u.password === user.password ); + if(validUser){ + // adding user object to req body because a user has purchased course in USERS array + req.user = validUser; + next(); + }else{ + res.status(403).json({message:'User Authentication failed'}); + } +} // Admin routes app.post('/admin/signup', (req, res) => { - // logic to sign up admin + const admin = req.body; + const existingAdmin = ADMINS.find(a=>a.username === admin.username + && a.password ===admin.password ); + if(existingAdmin) + res.status(404).json({message: 'Admin already exist'}); + else{ + ADMINS.push(admin); + res.json({message: 'Admin created successfully'}) + } }); -app.post('/admin/login', (req, res) => { - // logic to log in admin +app.post('/admin/login',adminAuthentication, (req, res) => { + console.log(req.headers); + res.json({message: 'Logged in successfully'}); }); -app.post('/admin/courses', (req, res) => { - // logic to create a course +app.post('/admin/courses',adminAuthentication, (req, res) => { + const course = req.body; + course.id = Date.now(); + COURSES.push(course); + res.json({ message: 'Course created successfully', courseId: 1 }) }); -app.put('/admin/courses/:courseId', (req, res) => { - // logic to edit a course +app.put('/admin/courses/:courseId',adminAuthentication, (req, res) => { + const courseId = parseInt(req.params.courseId); + const course = COURSES.find(c=>c.id ===courseId); + if(course){ + Object.assign(course,req.body); + res.json({message: 'Course updated successfully'}); + }else{ + res.status(403).json({message:'Course not found'}); + } }); -app.get('/admin/courses', (req, res) => { - // logic to get all courses +app.get('/admin/courses',adminAuthentication, (req, res) => { + res.json({courses: COURSES}); }); // User routes app.post('/users/signup', (req, res) => { - // logic to sign up user + const user = {...req.body,purchasedCourse: []}; + const existingUser = USERS.find(u=>u.username === user.username + && u.password ===user.password ); + if(existingUser) + res.status(404).json({message: 'User already exist'}); + else{ + USERS.push(user); + res.json({message: 'User created successfully'}) + } }); -app.post('/users/login', (req, res) => { - // logic to log in user +app.post('/users/login',userAuthentication, (req, res) => { + res.json({ message: 'Logged in successfully' }); }); -app.get('/users/courses', (req, res) => { - // logic to list all courses +app.get('/users/courses',userAuthentication, (req, res) => { + let filteredCourses = COURSES.filter(c => c.published) ; + res.json({course: filteredCourses}); }); -app.post('/users/courses/:courseId', (req, res) => { - // logic to purchase a course +app.post('/users/courses/:courseId',userAuthentication, (req, res) => { + const courseId = parseInt(req.params.courseId); + const course = COURSES.find(c=>c.id === courseId &&c.published); + if(course){ + req.user.purchasedCourse.push(course); + res.json({message:'Course purchased successfully'}) + }else{ + res.status(404).json({ message: 'Course not found or not available' }); + } }); -app.get('/users/purchasedCourses', (req, res) => { - // logic to view purchased courses +app.get('/users/purchasedCourses',userAuthentication, (req, res) => { + // const user = USERS.find(u=>u.username === req.user.username); + // res.json({purchasedCourses:req.user.purchasedCourse}); + const purchasedCourses = COURSES.filter(c=>req.user.purchasedCourses.includes(c.id)); + res.json({ purchasedCourses }); }); app.listen(3000, () => { diff --git a/week-3/02-course-app-easy/package-lock.json b/week-3/02-course-app-easy/package-lock.json new file mode 100644 index 000000000..4676d5ac8 --- /dev/null +++ b/week-3/02-course-app-easy/package-lock.json @@ -0,0 +1,836 @@ +{ + "name": "02-course-app-easy", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "02-course-app-easy", + "version": "1.0.0", + "license": "ISC", + "dependencies": { + "express": "^4.20.0" + } + }, + "node_modules/accepts": { + "version": "1.3.8", + "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz", + "integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==", + "license": "MIT", + "dependencies": { + "mime-types": "~2.1.34", + "negotiator": "0.6.3" + }, + "engines": { + "node": ">= 0.6" + } + }, + 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