sudo docker-compose up -d

    npm start

    npm test

   The service is written in Node with Typescript and Express as the framework.

   Prisma is used as an ORM with PostgreSQL as the database.

   JWT is used for authentication and bcrypt for hashing passwords in the database.

   Testing was done using JEST framework to test our service in different ways.

   TSLINT was used to as the linter for the service to ensure good format.

    Route : /api/user/login
    Method : POST
    Body : {username, password, role}  // role = SELLER or BUYER
    Response :
        201 success : {user, token}
        400 Fail : wrong format
        500 Fail : Internal server Error

    Route : /api/user/login
    Method : POST
    Body : {username, password}
    Response :
        200 success : {client, accesstoken, refreshtoken}
        400 Fail : wrong credentials

    Route : /api/user/
    Method : GET
    Headers : {token}
    Response :
        200 success : { user}
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/user/
    Method : PUT
    Headers : {token}
    Body : {username?, password?}
    Response :
        200 success: Success
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/user/
    Method : DELETE
    Headers : {token}
    Response :
        200 success: {Success, ReturnedMoney}
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/user/deposit
    Method : POST
    Header : {token}
    Body : {deposit} [] array of 5 numbers
    Response :
        200 success: Success
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/user/buy
    Method : POST
    Header : {token}
    Body : {productId, amount}
    Response :
        200 success: {Success, product, change}
        400 Fail : Can not purchase this product
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/user/reset
    Method : GET
    Header : {token}
    Response :
        200 success: {Success, change}
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/product/:id
    Method : GET
    Response :
        200 success: {Success, product}
        500 Fail : Internal server Error

    Route : /api/product/viewAll/:page     // page used for pagination every page 10 products
    Method : GET
    Response :
        200 success: {Success, products}
        500 Fail : Internal server Error

    Route : /api/product/
    Method : POST
    Header : {token} // has to be a seller
    Body : {name, cost, stock}
    Response :
        201 success: {Success, product}
        400 Fail : format error
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/product/:id
    Method : PUT
    Header : {token} // has to be the same seller
    Body : {name?, cost?, stock?}
    Response :
        201 success: {Success, product}
        400 Fail : format error
        401 Fail : Authentication error
        500 Fail : Internal server Error

    Route : /api/product/:id
    Method : DELETE
    Header : {token} // has to be the same seller
    Response :
        200 success: {Success}
        401 Fail : Authentication error
        500 Fail : Internal server Error

Due to limitation of time : 
    * We can add more separate unit tests to test each function on its own with many input to ensure that the function more robust and can handle different scenarios, also we can add more tests in general.
    * Making a refresh token and access token to be used with JWT.