dettiPOS

Authors

Grace | Stefan | Huseyin

Table of Contents

• Project Description
• Installation Instructions
• Database Schema
• RESTful Routing Chart
• Wireframes
• User Stories
• Goals
• Tech Stack
• Our Approach
• Successes and Hurdles
• Future Plans
• Authors

Live Site

DettiPos

Project Description

DettiPOS is a Point Of Sale System that is designed to be a simple and easy to use. It's a full-stack web application built on the MERN stack, and was developed as a group project for the Software Engineering Immersive course at General Assembly.

This application allows business owners to manage their orders, products, and employees, and allows employees to process transactions. Administrators are able to see reports about their sales, and have full control over the permissions of their employees.

This repository is the client of the dettiPOS system. To view the code for the backend, checkout the Github Repository.

Screenshots

Installation Instructions

1. Fork and clone this repo
2. Run npm i to install all dependencies
3. Create a .env.local file. Add a REACT_APP_SERVER_URL environment variable in that file. This is the URL of the server you are deploying to.
4. Run npm start to start the client server.
5. Follow the installation instructions for the backend server.

Database Schema

==>

{
  "user": {
    "id": "ObjectId",
    "username": "String",
    "password": "String",
    "role": "String"
  },
  "category": {
    "id": "ObjectId",
    "name": "String",
    "color": "String"
  },
  "product": {
    "id": "ObjectId",
    "code": "String",
    "name": "String",
    "price": "Number",
    "category": "ObjectId"
  },
  "order": {
    "id": "ObjectId",
    "user": "ObjectId",
    "lineItems": [
      {
        "product": "ObjectId",
        "price": "Number",
        "quantity": "Number"
      }
    ],
    "cashier": "ObjectId",
    "payment_method": "String",
    "total": "Number"
  }
}

RESTful Routing Chart

==>

Wireframes

==>

User Stories

• As a non-logged in user, I can access the login page and signup page, so that I can create an account or log in.
• As a cashier, I want to be able to place orders.
• As a cashier, I want to be taken to the new order page as soon as I log in.
• As an admin, I want to be able to place orders, in case no other cashiers are available.
• As an admin, I want to be able to view all products, and update or delete them.
• As an admin, I want to be able to view all categories, and update or delete them.
• As an admin, I want to be able to view all orders, and update or delete them.
• As an admin, I want to be able to view all employees, and update or delete them.
• As an admin, I want to be able to change employee privileges.
• As an admin, I want to be able to give each category a color, so that I can easily identify them.
• As an admin, I want to be taken to the transactions page as soon as I log in, so that I can easily see an overview of the day's sales.
• As an admin, I want to be able set the color theme
• As a cashier, I want to be able to see a list of all my orders.

Goals

Create a full-stack MERN application which allows business owners to store inventory and prices along with a second level of auth (cashier), both being able to complete customer transactions while the admin has ability to complete full CRUD on available schemas.

MVP

• Ability to either login or signup if you are a non-logged in user
• Ability for "Cashiers" to complete transactions only
• On login (cashiers), direct to new order page
• On login (admin), direct to all products
• Admin ability to view ALL transactions
• Admin ability to complete full CRUD on schemas
• Admin ability to update user permissions
• Admin ability to checkout if needed

Stretch Goals

• Ability to sort transactions by date/employee/filter
• Ability for Cashiers to see own transaction history
• Admin ability to set color theme
• Cashier ability to set color theme
• Implement a transactional API
• Implement O-Auth
• Implement inventory management

Tech Stack

• This project was built with MERN stack: an Express backend, MongoDB database, and React frontend.
• For styling we used TailwindCSS.
• Authentication is based on JWT tokens.

Our Approach

We started this project by planning a simple MVP. Our initial focus was on coming up with user stories, describing how the application would work, and then planning out the application's architecture. The user stories helped us come up with the necessary database models and the routes that would be needed to serve up the necessary data.

To keep our group on track and allow smooth collaboration, we used Miro to create a sprint board and track our progress. We also used Github for version control, and LiveShare, Zoom, and Discord for live collaboration and mob-coding.

Based on this plan we created our database schema, and wrote the backend code to handle requests. After completing and testing all the routes, we started focusing on the user interface. We designed wireframes for the application, which allowed us to easily plan the needed components and state for the frontend.

With our frontend plan in hand, we implemented basic functionality without any styling. After we were confident the application was functional, and our minimum viable product was working, we started working on styling.

Our styling utilized TailwindCSS, which is a CSS framework that allows us to easily create a responsive, mobile-first, and cross-browser applications. We also used Google Fonts and Google Material Icons to create a consistent look across the application. For some UI components, we used HeadlessUI from Tailwind Labs, which is a library that allows us to easily create components without having to write any HTML.

Successes and Hurdles

Successes

• We implemented a request logger on our server, which allows us to log all requests and responses to the console. This logger was designed to protect user privacy, by preventing the logging of sensitive information.
  • 
• We implemented several filtering features, allowing the user to filter products by category and name, as well as filtering transactions by date.
• Our team learned a lot about using TailwindCSS, and how it can be used to create a responsive, mobile-first, and cross-browser application.
• We managed to keep our code organized, stay on track with our sprints, and learned a lot about Git. We avoided merge conflicts, and were able to work on multiple repositories at once.
• Our team collaborated well on the project, and learned a lot about how to work in a team environment.

Hurdles

• While learning TailwindCSS was a success, it was also a hurdle. We had to learn how to use it, and how to use it correctly.
• Learning to make reusable UI components was a challenge. We had to learn how to use the HeadlessUI library, as well as how to write our own components.
• Navigating a large project and finding the right way to structure it was a challenge. Navigating all these components, functions, and variables was a challenge.

Future Plans

We plan on continuing development of dettiPOS to make it the most user-centric and easy-to-use POS system, while still providing powerful features. We'll continue to add features that allow business owners to view useful reports about transactions, sales volume, and more. The roadmap includes features like:

• Support for multiple businesses
• Inventory management
• Sales reports
  • Cash-up reports to reconcile cash received with cash in drawer
  • Daily, weekly, monthly sales reports
  • Sales by category and product
• Employee management
  • time tracking
  • payroll
• Customer management
• Order management
  • create orders that will be payed in the future
  • discounts
  • gift cards
• Integration with payment processors
• Color themes
• Support for multiple currencies

Authors

Grace | Stefan | Huseyin