oneclickhuman---REST-API-NodeJS

A backend API built with Node.js and Express for an AI-powered paraphrasing platform. The application handles real-time OpenAI streaming responses, user authentication, payment processing, content generation, and admin management.

Core Features

• RESTful API architecture with CORS support for secure communication between the frontend and backend.
• Structured backend architecture with routes, controllers, and middleware support.
• AI-powered text paraphrasing with real-time streaming responses using Server-Sent Events (SSE), along with smart batch processing to handle large text inputs smoothly and deliver faster streaming output to the frontend.
• Live content generation using OpenAI APIs and AI content detection using ZeroGPT API integration.
• User authentication system including registration, login, forgot password, and password change.
• Secure admin routes protected through custom middleware.
• Stripe payment integration with webhook support for automatic payment verification and user updates.
• Email notification system with node-mailer and handlebars (email templates).

Tech Stack

• NodeJs
• ExpressJS
• OpenAI integration
• Stripe Payment Integration
• Node Mailer, Handlebars.

Project Structure

index.js                # Entry point
config/connection.js    # Database connection
controllers/            # Route handlers
models/                 # Database models
routes/                 # API routes
templates/views/        # Handlebars templates
public/images/          # Static assets
utils/                  # Utility functions (mail, paraphrase, etc.)

Getting Started

1. Clone the repository
2. Run npm install to install dependencies
3. Configure your database in config/connection.js
4. Create a .env file in the root directory and add the following:

APP_NAME=YourAppName
APP_URL=http://localhost:3000
DB_HOST=localhost
DB_USER=your_db_user
DB_PASSWORD=your_db_password
DB_NAME=your_db_name
PORT=5000

OPENAI_KEY=""

PROMPT_PREMIUM_MODE = 'Prompt: "Rewrite the below content in ..."';
PROMPT_LIGHTNING_MODE = 'Prompt: "Rewrite the below content with in ..."';

TEMP_LIGHTNING_MODE = 1;
FREQUENCY_LIGHTNING_MODE = 0.3;
PRESENCE_LIGHTNING_MODE = 0.1;
TOP_P_LIGHTNING_MODE = 1;

TEMP_PREMIUM_MODE = 1;
FREQUENCY_PREMIUM_MODE = 0.6;
PRESENCE_PREMIUM_MODE = 0.1;
TOP_P_PREMIUM_MODE = 1;

MAX_TOKENS_PREMIUM_MODE = 5000;
MAX_TOKENS_LIGHTNING_MODE = 8000;
MODEL_LIGHTNING_MODE = gpt-4o-mini;
MODEL_PREMIUM_MODE = gpt-4;

BATCH_CHARACTER = 4000;

ZERO_GPT_API_KEY = your_zerogpt_api_key

SENDGRID_API_KEY = your_sendgrid_api_key
EMAIL_FROM = your_email_address

5. Start the server: node index.js
6. Access API endpoints at http://localhost:5000/

Make sure to connect this Node.js backend with the corresponding frontend application.

Check the repo - https://github.com/pabitrabarua123/oneclickhuman-AI-paraphrase