Chat App

Control and Running This App:

1. Download and Setup

   • Clone the repository:

     git clone https://github.com/fmahadyBD/chat_app.git

   • Open the project in VS Code or any other IDE.

   • Use Postman to register a new user at:

     http://localhost:yourPortNumber/register/user
     

     Example:

     http://localhost:8080/register/user

   • Example request body:

     {
       "name": "Mahady Hasan Fahim",
       "username": "fmahadybd",
       "password": "123",
       "role": "USER"
     }

     {
       "name": "ABCD",
       "username": "abcd",
       "password": "123",
       "role": "USER"
     }

2. Run in Browser:

   • Run the ChatAppApplication.java file.
   • Go to your browser and open:

     http://localhost:8080/login
     

   • Enter your username and password.
   • Now you can send messages.

REST Endpoint:

Register a new user:

http://localhost:8080/register/user

Chat App Version 2.0

Add new features:

1. Show All User
   • Allows to sent message every user by user
   • Every User Can sent message each-other

View:

Chat App Version 1.0

View:

Features:

1. User Registration:

   • Allows new users to register for the chat application.
   • Likely includes functionalities such as username and password setup, and possibly email verification.

2. One-to-One Chatting:

   • Enables users to send and receive messages in a private, one-on-one setting.
   • Messages are stored in a database.

3. Error Detection and Correction using Hamming Code:

   • Message Encoding:
     • Messages are converted to ASCII binary format before being stored in the database.
     • Each message is then encoded using Hamming code, which is an error-detecting and error-correcting code.
   • Error Correction:
     • If a single bit in the stored message changes (e.g., due to a database error), the Hamming code can detect and correct the error when the message is retrieved from the database.

Detailed Functionality:

1. Registration Process:

   • Users sign up by providing necessary details.
   • Information is stored securely in the database.

2. Sending a Message:

   • A message is converted from text to its ASCII binary representation.
   • The binary message is encoded using Hamming code.
   • The encoded message is stored in the database.

3. Receiving a Message:

   • The encoded message is retrieved from the database.
   • The Hamming code is used to check for and correct any single-bit errors.
   • The corrected binary message is converted back to its original text form and displayed to the user.