Phonebook System

Overview

This is a simple Phonebook System that allows an admin to manage contacts stored in a PostgreSQL database. The system consists of two separate projects:

• API Project: Developed using .NET Core, applying the Onion Architecture.
• Web Project: Built with Angular 16, featuring a minimal yet functional UI.

Features

• Add Contact: Admin can add new contacts.
• Remove Contact: Admin can delete existing contacts.
• Edit Contact: Admin can update contact details.
• Search Contact: Search by any part of the name, phone number, or email.
• List Contacts: Display all saved contacts from the database.

Technology Stack

Backend (API)

• .NET Core
• Entity Framework Core
• PostgreSQL
• Onion Architecture

Frontend (Web)

• Angular 16
• Bootstrap (for styling)
• Angular Services for API communication

API Endpoints

Method	Endpoint	Description
GET	/api/contacts	Get all contacts
POST	/api/contacts	Add a new contact
PUT	/api/contacts/{id}	Update a contact by ID
DELETE	/api/contacts/{id}	Remove a contact by ID
GET	/api/contacts/search?query={value}	Search contacts by name, phone, or email

Installation & Setup

Backend (API Project)

1. Clone the repository.
2. Navigate to the API project directory.
3. Install dependencies:

   dotnet restore

4. Configure the PostgreSQL connection string in appsettings.json.
5. Apply database migrations:

   dotnet ef database update

6. Run the API:

   dotnet run

Frontend (Web Project)

1. Navigate to the Web project directory.
2. Install dependencies:

   npm install

3. Run the Angular application:

   ng serve

4. Open the browser and navigate to http://localhost:4200.

Notes

• Ensure PostgreSQL is running and accessible.
• Modify API base URL in the Angular project (environment.ts) if needed.