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https://github.com/dimitrisstyl7/my-undergraduate-thesis

Integrated Service System for a Nutritionist and Clients – Web Platform and Mobile Application | Spring Boot - Jetpack Compose
https://github.com/dimitrisstyl7/my-undergraduate-thesis

android android-application clean-architecture-android docker docker-compose hibernate java jetpack-compose kotlin lombok postgresql restful-api spring spring-aop spring-data-jpa spring-mvc spring-security springboot thymeleaf web-platform

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Integrated Service System for a Nutritionist and Clients – Web Platform and Mobile Application | Spring Boot - Jetpack Compose

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# [Integrated Service System for a Nutritionist and Clients – Web Platform and Mobile Application](https://dione.lib.unipi.gr/xmlui/handle/unipi/16908)



## [University of Piraeus](https://www.unipi.gr/en/) | [Department of Informatics](https://cs.unipi.gr/en/)



## Abstract

This thesis aims to implement a service system for nutritionists that facilitates communication with their clients. The system supports the use of a **web platform** for the nutritionist and a **mobile application** for clients. The architecture includes a **backend server using Spring Boot Framework**, which serves both the web platform, and the **mobile application developed with the Jetpack Compose toolkit**.



## Backend Server

The backend server is implemented using the **MVC (Model-View-Controller)** software architecture pattern. In this project, the Model layer is further divided into sub-layers, such as [repositories](./DietitianHub-Backend/src/main/java/gr/unipi/thesis/dimstyl/repositories/) and [services](./DietitianHub-Backend/src/main/java/gr/unipi/thesis/dimstyl/services/), to better organize different functionalities and database interactions. Additionally, the Controller layer is also further divided into [web](./DietitianHub-Backend/src/main/java/gr/unipi/thesis/dimstyl/controllers/web/) and [api](./DietitianHub-Backend/src/main/java/gr/unipi/thesis/dimstyl/controllers/api/) controllers, as the same server also handles RESTful API calls from the Android application.



The relational database management system used is **PostgreSQL**, which runs in a **Docker container**. For container creation, the [docker-compose.yaml](./DietitianHub-Backend/docker/docker-compose.yml) file is used, while the [init.sql](./DietitianHub-Backend/docker/sql-scripts/init.sql) and [seed-data.sql](./DietitianHub-Backend/docker/sql-scripts/seed-data.sql) files are used to create the database and populate it with mock data.



### Frameworks, tools and libraries:

The following are the core frameworks, tools, and libraries used in the backend server. These represent the essential components, and additional tools may also be utilized.

- [Spring Boot Framework](https://spring.io/projects/spring-boot)

- [Spring Data JPA](https://spring.io/projects/spring-data-jpa)

- [Spring Security](https://spring.io/projects/spring-security)

- [Spring AOP](https://docs.spring.io/spring-framework/reference/core/aop.html)

- [Spring Email](https://docs.spring.io/spring-boot/reference/io/email.html)

- [Hibernate ORM](https://hibernate.org/orm/)

- [Hibernate Validator](https://hibernate.org/validator/)

- [Project Lombok](https://projectlombok.org/)

- [Thymeleaf](https://www.thymeleaf.org/)

- [Docker](https://www.docker.com/)

- [PostgreSQL](https://www.postgresql.org/)

- [Java JWT](https://github.com/jwtk/jjwt)



### Implemented Features:

#### 1. View clients

![View clients](./images/view-clients.png)

#### 2. Register a new client

![Register a new client](./images/add-new-client.png)

#### 3. Edit client details

![Edit client details](./images/edit-client-details.png)

#### 4. Delete a client

![Delete a client](./images/delete-client.png)

#### 5. Add client tags

![Add client tags](./images/add-client-tags.png)

#### 6. Upload, view, download, and delete diet plans for a client

![Upload, view, download, and delete diet plans for a client](./images/upload-view-download-delete-diet-plans.png)

#### 7. View announcements

![View announcements](./images/view-announcements.png)

#### 8. Preview announcement

![Preview announcement](./images/preview-announcement.png)

#### 9. Edit announcement

![Edit announcement](./images/edit-announcement.png)

#### 10. Delete announcement

![Delete announcement](./images/delete-announcement.png)

#### 11. View articles

![View articles](./images/view-articles.png)

#### 12. Preview article

![Preview article](./images/preview-article.png)

#### 13. Preview article tags

![Preview article tags](./images/preview-article-tags.png)

#### 14. Edit article

![Edit article](./images/edit-article.png)

#### 15. Edit article tags

![Edit article tags](./images/edit-article-tags.png)

#### 16. Delete article

![Delete article](./images/delete-article.png)

#### 17. Create a new appointment

![Create a new appointment](./images/create-new-appointment.png)

#### 18. Edit appointment details

![Edit appointment details](./images/edit-appointment-details.png)

#### 19. Cancel, decline, approve, or complete an appointment

![Cancel, decline, approve, or complete an appointment](./images/cancel-decline-approve-complete-appointment.png)



## Android Application

The Android application is implemented using the **Clean Architecture** software architecture pattern, which is an improved implementation of **MVVM (Model-View-ViewModel)** architecture design pattern.



### Tools and libraries:

The following tools and libraries are central to the Android application's development. However, there may be additional libraries and tools used in the project that are not explicitly mentioned here.

- [Jetpack Compose toolkit](https://developer.android.com/compose)

- [Navigation component](https://developer.android.com/develop/ui/compose/navigation)

- [Retrofit](https://square.github.io/retrofit/)

- [OkHttp](https://square.github.io/okhttp/)

- [Gson Converter](https://github.com/square/retrofit/blob/trunk/retrofit-converters/gson/README.md)

- [DataStore](https://developer.android.com/topic/libraries/architecture/datastore)



### Implemented Features:

#### 1. Edit personal details

![Edit personal details](./images/edit-personal-details.png)

#### 2. Download diet plans

![Download diet plans](./images/download-diet-plans.png)

#### 3. View appointments

![View appointments](./images/view-appointments-android.png)

#### 4. Request a new appointment

![Request a new appointment](./images/request-new-appointment.png)

#### 5. Cancel an appointment

![Cancel an appointment](./images/cancel-appointment.png)

#### 6. View announcements

![View announcements](./images/view-announcements-android.png)

#### 7. View announcement

![View announcement](./images/view-announcement.png)

#### 8. View articles

![View articles](./images/view-articles-android.png)

#### 9. View article

![View article](./images/view-article.png)