🚘 Car Sharing App 🚘

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Introduction ♦ Technologies ♦ Models ♦ How run this project ♦ Project architecture ♦ Database structure ♦ Controllers ♦ Contacts

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Introduction

Welcome to Car Sharing Service App! 👋

Our Car Sharing Service App is a convenient and secure app which will definitely be the best solution for you and your renting car services. We use authorization via JWT to protect access to the app. All users are divided into managers and customers which provides them with certain rights in the app. We created Telegram bot which sends messages when rental is created, paid or overdue. In future these notifications may be adjusted to your requirements (e.g. they may be sent to only managers, only to customers or to both). We used the Stripe API as a convenient payment system. All payments are secure and in case some error occurs a transaction will be rollbacked.

🔨 Technologies

• Java 17
• Maven
• Spring boot, Spring JPA, Spring Security
• Lombok
• MapStruct
• MySql 8
• Hibernate
• Liquibase
• JUnit5 (+ Mockito)
• Docker
• Swagger
• Telegram API
• Stripe API

Models

Car:

The Car model is a structured representation of a vehicle available in a car sharing service, encompassing key attributes for effective management and user interaction.
It includes the following attributes:

• Model: A distinctive identifier denoting the specific name or label of the car model.
• Brand: The brand or manufacturer responsible for producing the car, providing insight into its origin.
• Type: An enumeration capturing the body type of the car. It can take values from the set {SEDAN, SUV, HATCHBACK, UNIVERSAL}, elucidating the vehicle's structural category.
• Inventory: An integer reflecting the current availability of this particular car within the car sharing service. This attribute aids in real-time tracking of the car's stock.
• Daily Fee: A decimal value in $USD, indicating the cost users incur per day when renting this car. This information facilitates transparent pricing for potential renters.
• Image URL: A string representing a URL pointing to an image of the car. This visual aid allows users to preview the car's appearance before making a rental selection.

User (Customer):

This model is a basic representation of customer information and is commonly used in user management systems for applications. The password field is securely hashed and stored.
It includes the following attributes:

• Email: String, representing the user's email address.
• First name: String, representing the user's first name.
• Last name: String, representing the user's last name.
• Password: String, representing the user's password.

Role

Provides the possible roles, including CUSTOMER and MANAGER. This model is commonly used for managing user roles and permissions.

• CUSTOMER - default role for all registered users
• MANAGER - with this role you can manage cars and rentals

Rental

The Rental model encapsulates information related to a car rental transaction.
It includes the following attributes:

• Rental date: Represents the date when the car was rented.
• Return date: Signifies the expected date for the car to be returned.
• Actual return date: Records the actual date when the car was returned.
• Car ID: A unique identifier associated with the specific car involved in the rental.
• User ID: A unique identifier corresponding to the user who initiated the rental.

Payment:

The Payment model represents a financial transaction.
It encompasses the following attributes:

• Status: An enumeration with possible values PENDING, PAID or CANCELED, indicating the current status of the payment.
• Type: An enumeration with possible values PAYMENT or FINE, specifying whether the transaction is related to a regular payment or a fine.
• Rental: A unique identifier associated with the specific car rental to which the payment or fine is related.
• Session URL: A URL pointing to the payment session with a stripe, facilitating online payment processing.
• Session ID: A String representing the unique identifier of the payment session.
• Amount to Pay: A decimal value (in $USD) representing the calculated total price for the rental or fine.

How run this project

1. Make sure you have installed next tools

JDK 17+

Docker

2. Clone project

git clone https://github.com/The-Champions-JV/Car-Sharing-Service.git

3. Create .env file in the root of project and populate variables from .env.sample file

4. Run the following command to build and start the Docker containers

docker-compose up --build

5. The application should now be running at http://localhost:8081.

Project architecture

🛢️ Database structure

Controllers and endpoints available ⬇

Unauthorized customers can access endpoints to see all cars or info on one certain car. After registration and login customer can create a new rental, see info on their rental history, and pay for rental. Manager can modify data: add a new car, update info on an existing one, update customer's role.

Authentication Controller:

HTTP method	Endpoint	Role	Function
POST	/api/auth/registration	ALL	Allows a new customer to register
POST	/api/auth/login	ALL	Authenticates a customer and returns JWT token

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User Controller: Updating and getting user info

HTTP method	Endpoint	Role	Function
GET	/api/users/me	CUSTOMER	Enables customers to get info about themselves
PATCH	/api/users/update	CUSTOMER	Enables customers to update their firstname and lastname
PUT	/api/users/{id}/role	MANAGER	Enables managers to update user's role

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Car Controller: Managing and browsing cars

HTTP method	Endpoint	Role	Function
GET	/api/cars	ALL	Enables even unauthorized users to get all cars
GET	/api/cars/{id}	ALL	Enables even unauthorized users to get info on a specific car
POST	/api/cars	MANAGER	Enables manager to add a new car to DB
PUT	/api/cars/{id}	MANAGER	Enables managers to update info on an existing in DB car
DELETE	/api/categories/{id}	MANAGER	Enables managers to delete a car from DB

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Payment Controller: Managing and browsing payments

HTTP method	Endpoint	Role	Function
GET	/api/payments	CUSTOMER	Enables customers to get all their payments
GET	/api/payments/search/?status=	CUSTOMER	Enables customers to get all their payments by status (PAID/PENDING/CANCELED)
POST	/api/payments/pay	CUSTOMER	Enables customers to create session to use Stripe

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Rental Controller: Managing and browsing rentals

HTTP method	Endpoint	Role	Function
POST	/api/rentals	CUSTOMER	Enables customers to create new rental
GET	/api/rentals	CUSTOMER	Enables customers to get all their rentals
GET	/api/rentals/?is_active=	CUSTOMER	Enables customers to get all their rentals by activeness (true/false)
GET	/api/rentals/search/?user_id=&is_active=	MANAGER	Enables managers to search rentals using userId and activeness
POST	/api/rentals/{id}/return	MANAGER	Enables managers to return rental by setting actual return date

📞 Contributors

The Champions JV Team