Asyad El Code

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Table of Contents

• Project Description
• Tools and Frameworks
• Features
• Screenshots

Motiviation 🔥

The project itself aims to be a valuable resource for people looking to improve their skills and knowledge. It provides a convenient and accessible way for people to learn new things and achieve their goals through online courses and exercises. By offering the opportunity to practice and apply what they have learned, the project helps students not only learn new information, but also test their understanding and retain it for longer periods of time. The project strives to be the best it can be and continues to work towards this goal.

Build Status 🦾

• The project is currently in development.
• Unit tests will be added.

Code Style ✍️

• Camel Case in variable names used

You can then run Prettier on your code by using the prettier command in your terminal. For example:

prettier --write "src/**/*.js"

Project Description

Course

Advanced Computer Lab (CSEN 704/ DMET 706), Winter 2022

Theme

Our project is an online learning platform that allows both individual and corporate trainees to enroll in a variety of courses and track their progress as they work towards earning a certificate of completion. The platform features a range of courses taught by experienced instructors who have created engaging lectures and quizzes to help students master the material. In addition to providing a convenient and flexible way for learners to gain new skills and knowledge, the platform also offers tools for instructors to manage their courses and for admins to track and address any issues that may arise, such as requests for refunds or reports of problems. Whether you're looking to advance your career, learn a new hobby, or simply expand your horizons, our platform is a great resource for anyone looking to learn and grow.

Overview

Our project was developed using the Agile Methodology, which involves breaking the project into shorter time periods called "Sprints." Each Sprint has a specific set of goals, and at the end of each Sprint, a fully functional version of the project is delivered and evaluated based on the specified system requirements. This approach allows for a more flexible and responsive development process, as it allows for ongoing adjustments and improvements to be made based on feedback and changing needs.

Objectives

• Gain an understanding of how to effectively utilize the Agile Methodology for project planning and software development
• Learn the process of following a given set of System Requirements to develop a software.
• Learn to research and master the use of the MERN Stack.
• Learn how to work together as a team on GitHub.

Tech and Framework used 🧰

• React
• Redux
• Node.js
• Express
• MongoDB
• Mongoose
• Joi
• Material-UI
• Stripe
• Git
• Github Actions
• NodeMailer
• Postman
• VSCode
• JWT

Features

Feature	🔰 Status
Authentiation	✔️
Authorization	✔️
User Roles	✔️
Payments	✔️
User Email Notifications	✔️
User Password Reset	✔️
REST API	✔️
Validation using JOI	✔️

LICENSE

This project is licensed under the Apache License 2.0. See the LICENSE file for details.

Screenshots 📗

• Home Page

Individual Trainee

• Sign up and enter their details in a form including first name, last name, email, password and gender.

• Sign in using his email and password.

• Send email in case of forgetting password.

• Change password

• View your profile

• View Course

• View Course Content

• Watching Video

• See Your Certificate

• Rating The Course

• See Resolved Problems

• Solving Exercise

Instructor

• Creating Course

Admin Dashboard

Meet our team

Configuration and Setup 🔓

In order to run this project locally, simply fork and clone the repository or download as zip and unzip on your machine.

• Open the project in your prefered code editor.
• Go to terminal -> New terminal (If you are using VS code)
• Split your terminal into two (run the client on one terminal and the server on the other terminal)

In order to use ES6 MODULE in node js.

> cd server
> find `package.json`
> below `main` enter a new key-value pair called `type = module`

In the first terminal

> git clone https://github.com/Advanced-Computer-Lab-2022/Asyad-El-Code.git
> cd Asyad-El-Code/
> cd server & npm i & cd..
> cd client & npm i

Backend

cd server && npm start

Frontend

cd client && npm start

Environment Variables

Add this keys to .env file to run project

PORT

MONGO_URI

TOKEN_KEY

HOST

USER

PASS

SERVICE

STRIPE_PRIVATE_KEY

Code Example 💻

---

export const RatingAndReviewPopup = ({
  ratingOpen,
  handleCancelRating,
  handleSubmit,
}) => {
  const dispatch = useDispatch();
  const [ratingValue, setRatingValue] = useState(0);
  const [review, setReview] = useState("");
  //update RatingOpen to false when cancel button is clicked
  const handleCancel = () => {
    handleCancelRating();
  };
  const handleClick = () => {
    handleSubmit(ratingValue, review);
  };
  return (
    <>
      <Dialog open={ratingOpen}>
        <DialogTitle>Add a rating and review for the course</DialogTitle>
        <DialogContent>
          <DialogContentText>Add a rating from 1 to 5</DialogContentText>
          <Rating
            name="simple-controlled-rating"
            value={ratingValue}
            onChange={(event, newValue) => {
              setRatingValue(newValue);
            }}
          />
          <DialogContentText>Add a review</DialogContentText>
          <TextField
            id="outlined-multiline-static"
            label="Review"
            multiline
            rows={4}
            defaultValue=""
            variant="outlined"
            onChange={(e) => setReview(e.target.value)}
          />
        </DialogContent>
        <DialogActions>
          <Button variant="outlined" color="primary" onClick={handleClick}>
            Submit
          </Button>
          <Button variant="outlined" color="primary" onClick={handleCancel}>
            Cancel
          </Button>
        </DialogActions>
      </Dialog>
    </>
  );
 

export const updateRating = async (req, res) => {
  try {
    const id = mongoose.Types.ObjectId(req.params.id);
    const { rating } = req.body;
    const instructor = await Instructor.findById(id);
    if (!instructor) return res.status(404).send("instructor not found");
    const updatedInstructor = await Instructor.findByIdAndUpdate(
      id,
      { rating: rating },
      { new: true }
    );
    res.status(200).send(updatedInstructor);
  } catch (error) {
    res.status(400).send(error.message);
  }
};

END POINTS

Authentication Routes

Create User

  POST /signup

Headers	Type	Description
Authorization	string	Required. Bearer token is added.

Body	Type	Description
firstName	string	Required. firstName of trainee
lastName	string	Required. lastName of the trainee
email	string	Required. email of trainee
password	string	Required. password of trainee
gender	string	Required. gender of the trainee

Response

{
  
  "result":{"firstName":"Roberto",
  "lastName":"joseph",
  "gender":"Male",
  "password":"hashedPassword",
  "_id":"63b19f456422dcc9bbca8c35",
  "courses":[],
  "grades":[],
  "notes":[],
  
 },
 "token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c",
"type":"indivdualTrainee"

}

Sign in

 POST /signin

Headers	Type	Description
Authorization	string	Required. Bearer token is added.

Body	Type	Description
email	string	Required. email of trainee
password	string	Required. password of the trainee

Response

{
"result": {
"firstName":"Roberto",
"lastName":"Joseph",
"email":"robertojoseph@gmail.com",
"password":"hashedPassword",
"gender":"Male"
         },
"token":"eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJz
 dWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c",
"type":"individualTrainee"
}

Forgot Password

 POST /sendemail

Body	Type	Description
email	string	Required. user email.

 {"email":"robertojoseph@gmail.com"}

Change Password

 POST /confirmPassword/:id

Parameter	Type	Description
id	string	Required. user id.

Body	Type	Description
password	string	Required. user new password.

Response

{
"message":"success"
}

Instructor Routes

Filter Instructor Courses

GET /filterInstructorCourses

Query	Type	Description
id	string	Required. id of instructor
subject	string	Required. course subject
price	string	Required. price of course
rating	string	Required. rating of course

Code Example 💻

export const filterInstructorCourses = async (req, res) => {
  try {
    const { id, subject, price, rating } = req.query;
    const subjectArray = subject.split(/[,]+/);
    const priceArray = price.split(/[,]+/);
    const ratingArray = rating.split(/[,]+/);
    const courses = await Course.aggregate([
      { $match: { "instructor.instructorId": mongoose.Types.ObjectId(id) } },
      { $match: { subject: { $in: subjectArray } } },
      { $match: { rating: { $lte: parseInt(ratingArray[1]) } } },
      { $match: { rating: { $gte: parseInt(ratingArray[0]) } } },
      {
        $addFields: {
          discountedPrice: {
            $cond: [
              {
                $and: [
                  { $lte: ["$promotion.startDate", new Date(Date.now())] },
                  { $gte: ["$promotion.endDate", new Date(Date.now())] },
                ],
              },
              {
                $multiply: [
                  "$price",
                  { $subtract: [1, "$promotion.discount"] },
                ],
              },
              "$price",
            ],
          },
        },
      },
      { $match: { discountedPrice: { $lte: parseInt(priceArray[1]) } } },
      { $match: { discountedPrice: { $gte: parseInt(priceArray[0]) } } },
    ]);

    if (!courses) {
      res.status(404).send("Cannot find Courses for this instructor");
    }
    res.status(200).send(courses);
  } catch (err) {
    res.status(401).send(err);
  }
};

Response

{
"courses":[]
}

Create Instructor

POST /createInstructor

Header	Type	Description
Authorization	string	Required. role should be admin.

Body	Type	Description
userName	string	Required. username of instructor
firstName	string	Required. firstname of instructor
lastName	string	Required. lastname of instructor
email	string	Required. email of instructor
gender	string	Required. gender of instructor
passsword	string	Required. password of instructor
country	string	Required. country of instructor
phoneNumber	string	Required. phoneNumber of instructor
about	string	Required. biography of instructor
dateOfBirth	string	Required. date of birth of instructor

Response

{
     "userName": "robertoJoseph",
     "firstName": "roberto",
     "lastName": "joseph",
     "email": "instructor10@gmail.com",
     "gender": "Male",
     "password": "pass123",
     "country": "egypt",
     "dateOfBirth": "20/08/2001",
     "wallet": "0",
     "phoneNumber: "010xxxxxxx",
     "about": "firstInstructor",
}

Get Instructors

 GET /instructor

Response

{
"instructors":[]
}

Get Course Titles Given By Instructor

  GET /viewTitles/:id

Parameter	Type	Description
id	string	Required. Instructor id.

Response

{
  "courses":[]
}

Add Course

  POST /addNewCourse

Header	Type	Description
Authorization	string	Required. Bearer token of the instructor

Body	Type	Description
title	string	Required. title of course
summary	string	Required. summary of the course
subject	string	Required. subject of the course
previewVideo	string	Required. preview video of the course
outline	array	Required. outline of the course
exercises	array	Required. exercises of the course
price	number	Required. price of the course
releaseDate	string	Required. releasedate of the course
language	string	Required. language of the course
image	string	Required. image of the course
duration	number	Required. duration of the course

Parameter	Type	Description
id	string	Required. instructor id

Response

{
  "title":"course1",
  "summary":"This is a nodeJs course",
  "price":"500",
  "rating":"0",
  "previewVideo":"youtube video url",
  "outline":{
               [
                  "outline":"Section 1",
                  "totalHours":"30",
                  "subtitles":[
                                  {
                                   "subtitle":"lecture1",
                                   "minutes":"13",
                                   "videoUrl":"youtube video url"
                                    }
                                                          
                                 ],
                  "exercises":[
                               {
                                  "question":"question1",
                                  "answers":[
                                         {
                                           "answer":"answer1",
                                           "correct":"true",

                                              }

                                              ]
                                 }
                                
                                  
                                  ]
                 ]
            },
  "price":500,
  "instructorId":{ "instructorId":"id", "name": "roberto" },
  "ratings":[],
  "reviews":[],
  "numberOfEnrolledStudents":0,

}

Update Instructor

  PATCH /updateInformation/:id

Header	Type	Description
Authorization	string	Required. Bearer token of the instructor

Parameter	Type	Description
id	string	Required. instructor id

Body	Type	Description
firstName	string	Required. first name of the insttrucor
lastName	string	Required. last name of the instructor
country	string	Required. country of the instructor
phoneNumber	string	Required. phone number of the instrcutor

Response

{
   "firstName":"jannah"
   "lastName":"gabr",
   "lastName":"gabr",
   "biography":"I teach math",
   "phoneNumber":"01092022xxxx",

}

Add Review On Instructor

  POST /addReview

Query	Type	Description
instructorId	string	Required. id of the instructor
individualTraineeId	string	Required. id of the trainee
coorporateTraineeId	string	Required. id of the trainee
review	string	Required. review on instrcutor

Response

{
    "userName": "robertoJoseph",
    "firstName": "roberto",
    "lastName": "joseph",
    "email": "instructor10@gmail.com",
    "gender": "Male",
    "password": "pass123",
    "country": "egypt",
    "dateOfBirth": "20/08/2001",
    "wallet": "0",
    "phoneNumber": "010xxxxxxx",
    "about": "firstInstructor",
    "reviews":[
           
              "individualTraineeId":"5f7b11be78b93e73d92366f9",
              "review":"el ragel da meya el meya",


 
]
}

Update Rating

  POST /updateRating/:id

Header	Type	Description
Authorization	string	Required. Bearer token of the instructor

Query	Type	Description
id	string	Required. id of the instructor

Body	Type	Description
rating	number	Required. rating on the instructor

Response

{
    "userName": "robertoJoseph",
    "firstName": "roberto",
    "lastName": "joseph",
    "email": "instructor10@gmail.com",
    "gender": "Male",
    "password": "pass123",
    "country": "egypt",
    "dateOfBirth": "20/08/2001",
    "wallet": "0",
    "phoneNumber: "010xxxxxxx",
    "about": "firstInstructor",
    "rating":[
           
              "individualTraineeId":"5f7b11be78b93e73d92366f9",
              "rating":5,
 ]
}

Define Promotion

  POST /definePromotion

Header	Type	Description
Authorization	string	Required. Bearer token of the instructor

Param	Type	Description
id	string	Required. id of the instructor

Body	Type	Description
rating	number	Required. rating on the instructor

Response

{
    "userName": "robertoJoseph",
    "firstName": "roberto",
    "lastName": "joseph",
    "email": "instructor10@gmail.com",
    "gender": "Male",
    "password": "pass123",
    "country": "egypt",
    "dateOfBirth": "20/08/2001",
    "wallet": "0",
    "phoneNumber": "010xxxxxxx",
    "about": "firstInstructor",
    "rating":[
           
              "individualTraineeId":"5f7b11be78b93e73d92366f9",
              "rating":5,
 ]
}

Get Instructor Courses

  GET /getAllInstructorCourses/:id

Parameter	Type	Description
id	string	Required. id of the instructor

Response

{
  "courses":[]
}

Trainee Router

Get Notes

  GET /getNotes

Header	Type	Description
Authorization	string	Required. Bearer token of the trainee

Query	Type	Description
userId	string	Required. id of trainee
courseId	string	Required. course id
lectureId	string	Required. lecture id

Response

 {
   "notes": [
                {
         "subtitleId":"5f7b11be78b93e73d92366f9",
         "note": [{ "value": "nice", time: "33" }],
              }
             ]
 }

Get Pdf of notes

  GET /getPdf

Response

 > res,sendFile(`${__dirname}/test.pdf`)

Update Individual Trainee

  PUT /:id

Parameter	Type	Description
id	string	Required. Id of trainee

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Body	Type	Description
firstName	string	Required. first name of trainee
lastName	string	Required. last name of trainee
phoneNumber	string	Required. phone number of trainee
country	string	Required. country of trainee

Response

{ "firstName":"kareem", "lastName":"khedr", "phoneNunber":"010222xxxx", "country":"egypt" }

Enroll in Course

  POST /enrollInCourse

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Body	Type	Description
courseId	string	Required. id of course

Response

 {

  "instructor":{
    "courses":[
             "courseId":"5f7b11be78b93e73d92366f9",
             "title":"Course Flutter",
             "summary":"yes babe",
             "duration":"30",
             "releaseDate":"20/8/2019",
             "summary":"yes man",
             
          
 ]
   
 }
}

Add Grade

  POST /addGrade

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Query	Type	Description
courseId	string	Required. id of course
score	number	Required. grade of trainee
total	number	Required. total grade
individualTraineeId	id	Required. id of trainee
score	number	Required. score from the exercise

Response

  {
       "grades": [
        {
          "score": 30,
          "total": 50,
          "exerciseId": "5f7b11be78b93e73d92366f9",
        },
      ],
  }

Add Seen Content

  POST /addSeenContent

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Query	Type	Description
courseId	string	Required. id of course
outlineId	string	Required. id of lecture
individualTraineeId	string	Required. id of trainee
minutes	number	Required. id of trainee

Response

  {
   "seenContent": [
        {
          "duration": 30,
          "contentId": "5f7b11be78b93e73d92366f9",
        },
      ],
  }

Add Notes

  POST /addNotes

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Query	Type	Description
courseId	string	Required. id of course
lectureId	string	Required. id of lecture
individualTraineeId	string	Required. id of trainee
note	string	Required. note of trainee
playedMinutes	number	Required. time of note

Response

  {
  "notes": [
        {
          "subtitleId": "5f7b11be78b93e73d92366f9",
          "note": [{ "value": "nice", "time": "33" }],
        },
      ],
  }

Get trainee

  GET /:id

Parameter	Type	Description
id	string	Required. id of trainee

Create Pdf for notes

```http
  GET /getPdf
```

Response

> res,sendFile(`promise.resolve(__dirname)/test.pdf`)

Pay for course

  POST /payForCourse

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Query	Type	Description
courses	array	Required. array of courses to buy
individualTraineeId	string	Required. id of trainee
instructorId	string	Required. the instructorId to gain profit

Response

  {
   "session":"checkout_session_id"

  }

Send Email for certificate

  POST /sendEmail

Header	Type	Description
Authorization	string	Required. Bearer token of trainee

Query	Type	Description
courseId	string	Required. id of course
userId	string	Required. id of trainee

Response

  {
   "message":"PDF sent successfully"

  }

Get All trainees

  GET /

Response

{
  "individualTrainees":[]
 }

Admin Routes

Applying Authroization Header to all the routes which checks if the user is admin from his token

Get Admins

 GET /

Response

{
  "admins":[]
}

Get All Refund Requests

  GET /refunds

Response

[
  {
    "individualTraineeId": "5f7b11be78b93e73d92366f9",
    "courseId": "5f7b11be78b93e73d92366f9",
    "_id": "5f7b11be78b93e73d92366f9",
    "refundType": "course",
    "refundReason": "reason",
    "firstName": "firstName",
    "lastName": "lastName",
    "courseName": "courseName",
    "email":"email",
  }
]

Create Admin

  POST /

Body	Type	Description
userName	string	Required. First name of admin
email	string	Required. Email of admin
password	string	Required. Password of admin

Response

{
  "admin": {
    "userName": "heidarAdmin",
    "email": "admin@gmail.com",
    "password": "hashedPassword"",

    "_id": "5f7b11be78b93e73d92366f9",
  }
}

Get All Course Requests

  GET /courseRequests

Response

[
  {
    "userId": "5f7b11be78b93e73d92366f9",
    "courseId": "5f7b11be78b93e73d92366f9",
    "_id": "5f7b11be78b93e73d92366f9",
    "userName": "user13333",
    "request": "I need this course to be added",
    "date": "20/10/2020",
    "email":"roo@gmail.com",
    "courseName":"first course"
  }
]

Get Admin By Id

GET /:id

Parameter	Type	Description
id	string	Required. id of admin

Response

{
"admin": {
"userName": "heidarAdmin",
"email": "admin@gmail.com",
"password": "hashedPassword"",

"_id": "5f7b11be78b93e73d92366f9",
}
}

Add Instructor

 POST /addInstructor

Body	Type	Description
userName	string	Required. First name of instructor
email	string	Required. Email of instructor
password	string	Required. Password of instructor

Response

{
  "instructor": {
    "userName": "heidarAdmin",
    "email": "instructor10@gmail.com"
    "password": "hashedPassword"",
    "_id": "5f7b11be78b93e73d92366f9",
  }
}

Add Coorporate

  POST /addCoorporate

Body	Type	Description
userName	string	Required. First name of coorporate
email	string	Required. Email of coorporate
password	string	Required. Password of coorporate

Response

{
  "coorporate": {
    "userName": "heidarAdmin",
    "email": "coor@gmail.com",
    "password": "hashedPassword"",

    }
}

Accept Course Request

 POST /acceptCourseRequest

Body	Type	Description
email	string	Required. coorporate email
courseName	string	Required. name of the course

Response

{
  "message": "Course Request Accepted"
}

Reject Course Request

 POST /rejectCourseRequest

Body	Type	Description
email	string	Required. coorporate email
courseName	string	Required. name of the course

Response

{
  "message": "Course Request Rejected"
}

Provide Course

  POST /provideCourse

A table of query

Query	Type	Description
id	string	Required. id of course
coorporateId	string	Required. id of coorporate

Response

{
  "message": "Course Provided"
}

Accept Refund

  POST /acceptRefund

Body	Type	Description
email	string	Required. email of user
courseName	string	Required. name of the course

Response

{
  "message":"Refund request has been accepted and email has been sent to ${email}"
}

Reject Refund

 POST /rejectRefund

A table of body contain email and courseName

Body	Type	Description
email	string	Required. email of user
courseName	string	Required. name of the course

Response

{
  "message":"Refund request has been rejected and email has been sent to ${email}"
}

Delete Refund Request

 POST /deleteRefundRequest/:id

A table of params contain id of refund request

Parameter	Type	Description
id	string	Required. id of refund request

Response

{
  "message": "Refund Request Deleted"
}

Course Routes

Filter Course Based on price

  GET /filter/price

A table of body contains max and min price of the course you wantt o search for

Body	Type	Description
max	number	Required. max price of course
min	number	Required. min price of course

Response

{
  "courses":[
    {
      "title": "course1",
      "description": "course1 description",
      "price": 100,
      "image": "image1",
      "instructor": {
        "instructorId": "5f7b11be78b93e73d92366f9",
        "name":"jannah"
      },
      "duration": 40,
      "subject":"computer science",
      "rating": 4.5,
      "language": "english",
      "rating": 4.5,
      "outlines":[],
      "reviews":[],
      "promotion":{ 
        "discount": 10,
        "startDate": "2020-10-10",
        "endDate": "2020-10-10"
      },
      "ratings":[],
      "numberOfEnrolledStudents": 0,
      "releasedDate": "2020-10-10",
      
      

    }
  ]
}

Get Course

  GET /course/

A table of parameter

Parameter	Type	Description
id	string	Required. id of course

Response

{
  "course": {
    "title": "course1",
    "description": "course1 description",
    "price": 100,
    "image": "image1",
    "instructor": {
      "instructorId": "5f7b11be78b93e73d92366f9",
      "name":"jannah"
    },
    "duration": 40,
    "subject":"computer science",
    "rating": 4.5,
    "language": "english",
    "rating": 4.5,
    "outlines":[],
    "reviews":[],
    "promotion":{ 
      "discount": 10,
      "startDate": "2020-10-10",
      "endDate": "2020-10-10"
    },
    "ratings":[],
    "numberOfEnrolledStudents": 0,
    "releasedDate": "2020-10-10",



  }
}

Find Course By Subject And Rating

GET /searchBySubjectAndRating

A table of body consists of rating and subject

Body	Type	Description
rating	number	Required. rating of course
subject	string	Required. subject of course

Response

{
"courses":[
  {
    "title": "course1",
    "description": "course1 description",
    "price": 100,
    "image": "image1",
    "instructor": {
      "instructorId": "5f7b11be78b93e73d92366f9",
      "name":"jannah"
    },
    "duration": 40,
    "subject":"computer science",
    "rating": 4.5,
    "language": "english",
    "rating": 4.5,
    "outlines":[],
    "reviews":[],
    "promotion":{ 
      "discount": 10,
      "startDate": "2020-10-10",
      "endDate": "2020-10-10"
    },
    "ratings":[],
    "numberOfEnrolledStudents": 0,
    "releasedDate": "2020-10-10",



  }
]
}

Filter Courses By Subject & Price & Rating

  GET /filterAllCourses

Code Example

export const filterAllCourses = async (req, res) => {
  try {
    const { subject, price, rating } = req.query;
    
    const subjectArray = subject.split(/[,]+/);
    const priceArray = price.split(/[,]+/);
    const ratingArray = rating.split(/[,]+/);
    const c = await Course.aggregate([
      {
        $match: {
          subject: { $in: subjectArray },
        },
      },

      {
        $match: {
          rating: { $lte: parseInt(ratingArray[1]) },
        },
      },
      {
        $match: {
          rating: { $gte: parseInt(ratingArray[0]) },
        },
      },
      {
        $addFields: {
          discountedPrice: {
            $cond: [
              {
                $and: [
                  { $lte: ["$promotion.startDate", new Date(Date.now())] },
                  { $gte: ["$promotion.endDate", new Date(Date.now())] },
                ],
              },
              {
                $multiply: [
                  "$price",
                  { $subtract: [1, "$promotion.discount"] },
                ],
              },
              "$price",
            ],
          },
        },
      },
      {
        $match: {
          discountedPrice: { $lte: parseInt(priceArray[1]) },
        },
      },
      {
        $match: {
          discountedPrice: { $gte: parseInt(priceArray[0]) },
        },
      },
    ]);
    if (!c) return res.status(200).send({ message: "No course found" });
    res.status(200).send(c);
  } catch (err) {
    res.status(401).send(err);
  }
};
 

Query	Type	Description
subject	string	Required. subject of course
price	string	Required. price of course
rating	string	Required. rating of course

Response

{
  "courses":[
    {
      "title": "course1",
      "description": "course1 description",
      "price": 100,
      "image": "image1",
      "instructor": {
        "instructorId": "5f7b11be78b93e73d92366f9",
        "name":"jannah"
      },
      "duration": 40,
      "subject":"computer science",
      "rating": 4.5,
      "language": "english",
      "rating": 4.5,
      "outlines":[],
      "reviews":[],
      "promotion":{ 
        "discount": 10,
        "startDate": "2020-10-10",
        "endDate": "2020-10-10"
      },
      "ratings":[],
      "numberOfEnrolledStudents": 0,
      "releasedDate": "2020-10-10",
      
      

    }
  ]
}

Add Rating To Course

  POST /addRating

A table of query consists of rating and courseid , traineeId

Query	Type	Description
rating	number	Required. rating of course
courseId	string	Required. id of course
traineeId	string	Required. id of trainee

Response

```json
{
  "message": "rating added successfully"
}
```

Get Courses With Promotion On It

  GET /getCoursesWithPromotion

Code example 💻

export const getCoursesWithPromotion = async (req, res) => {
  try {
    const courses = await Course.aggregate([
      {
        $addFields: {
          discountedPrice: {
            $cond: [
              {
                $and: [
                  { $lte: ["$promotion.startDate", new Date(Date.now())] },
                  { $gte: ["$promotion.endDate", new Date(Date.now())] },
                ],
              },
              {
                $multiply: [
                  "$price",
                  { $subtract: [1, "$promotion.discount"] },
                ],
              },
              "$price",
            ],
          },
        },
      },
    ]);
    if (!courses) return res.status(404).send({ message: "Courses not found" });
    res.status(200).send(courses);
  } catch (error) {
    console.log(error);
  }
};

Response

{
  "courses":[
    {
      "title": "course1",
      "description": "course1 description",
      "price": 100,
      "image": "image1",
      "instructor": {
        "instructorId": "5f7b11be78b93e73d92366f9",
        "name":"jannah"
      },
      "duration": 40,
      "subject":"computer science",
      "rating": 4.5,
      "language": "english",
      "rating": 4.5,
      "outlines":[],
      "reviews":[],
      "promotion":{ 
        "discount": 10,
        "startDate": "2020-10-10",
        "endDate": "2020-10-10"
      },
      "ratings":[],
      "numberOfEnrolledStudents": 0,
      "releasedDate": "2020-10-10",
      
      

    }
  ]
}

Request Refund

  POST /requestRefund

A table of body consists of course, type, individualTraineeId, coorporateTraineeId, firstName, lastName, email, refundReason, refundType

Body	Type	Description
course	string	Required. course of refund
type	string	Required. type of refund
individualTraineeId	string	Required. id of individual trainee
coorporateTraineeId	string	Required. id of coorporate trainee
firstName	string	Required. first name of trainee
lastName	string	Required. last name of trainee
email	string	Required. email of trainee
refundReason	string	Required. reason of refund
refundType	string	Required. type of refund

Response

{
  "message": "refund request sent successfully"
}

Get Popular Courses

  GET /getPopularCourses

Code example 💻

  try {
  
    const courses = await Course.aggregate([
      {
        $addFields: {
          discountedPrice: {
            $cond: [
              {
                $and: [
                  { $lte: ["$promotion.startDate", new Date(Date.now())] },
                  { $gte: ["$promotion.endDate", new Date(Date.now())] },
                ],
              },
              {
                $multiply: [
                  "$price",
                  { $subtract: [1, "$promotion.discount"] },
                ],
              },
              "$price",
            ],
          },
        },
      },
    ])
      .sort({ numberOfTraineesEnrolled: -1 })
      .limit(12);
    if (!courses) return res.status(404).send({ message: "Courses not found" });
    res.status(200).send(courses);
  } catch (error) {
    console.log(error);
  }
};

Response

{
  "courses":[
    {
      "title": "Mern Stack",
      "description": "Mern Popular One ",
      "price": 100,
      "image": "image1",
      "instructor": {
        "instructorId": "5f7b11be78b93e73d92366f9",
        "name":"klllll"
      },
      "duration": 40,
      "subject":"computer science",
      "rating": 4.5,
      "language": "english",
      "rating": 4.5,
      "outlines":[],
      "reviews":[],
      "promotion":{ 
        "discount": 10,
        "startDate": "2020-10-10",
        "endDate": "2020-10-10"
      },
      "ratings":[],
      "numberOfEnrolledStudents": 15,
      "releasedDate": "2020-10-10",
      
      

    }
  ]
}

Reported Problems

Create Reported Problem

  POST /

Body	Type	Description
course	string	Required. course of refund
reporterEmail	string	Required. email of reporter
courseId	string	Required. id of course
courseName	string	Required. name of course
type	string	Required. type of problem
details	string	Required. details of problem

Response

{
  "reporterEmail": "rro@gmail.com",
  "courseId": "5f7b11be78b93e73d92366f9",
  "courseName": "Mern Stack",
  "type": "money",
  "details": "money problem"
}

Get All Reported Problems

  GET /

Response

{
  "reportedProblems": [
    {
      "reporterEmail": "hm@gmail.com",
      "courseId": "5f7b11be78b93e73d92366f9",
      "courseName": "Mern Stack",
      "type": "money",
      "details": "money problem",
      "status":"pending",
      "date": "2020-10-10",
      "response": "",
      "date":"2020-10-10"
    }
  ]
}

Get Reported Problem By Email

  GET /getReportedProblemByReporterEmail

Response

{
   "reporterEmail": "hm@gmail.com",
      "courseId": "5f7b11be78b93e73d92366f9",
      "courseName": "Mern Stack",
      "type": "money",
      "details": "money problem",
      "status":"pending",
      "date": "2020-10-10",
      "response": "",
      "date":"2020-10-10"

}

Update Reported Problem

  PUT /:id

Parameter	Type	Description
id	string	Required. id of the problem

A table of body consists of response and status

Body	Type	Description
response	string	Required. response of the problem
status	string	Required. status of the problem

Response

{
    "reporterEmail": "hm@gmail.com",
      "courseId": "5f7b11be78b93e73d92366f9",
      "courseName": "Mern Stack",
      "type": "money",
      "details": "money problem",
      "status":"resolved",
      "date": "2020-10-10",
      "response": "I got you friend",
      "date":"2020-10-10"
}

Get Resolved Reported Problems

  GET /getResolvedProblems

Response

{
  "reportedProblems": [
    {
     "reporterEmail": "hm@gmail.com",
      "courseId": "5f7b11be78b93e73d92366f9",
      "courseName": "Mern Stack",
      "type": "money",
      "details": "money problem",
      "status":"resolved",
      "date": "2020-10-10",
      "response": "I got you friend",
      "date":"2020-10-10"
    }
  ]
}